SlideShare ist ein Scribd-Unternehmen logo
1 von 24
Downloaden Sie, um offline zu lesen
NANOCOMPOSITE
• Nanotechnology, also known as nanoscience or molecular
engineering, is defined as the creation of functional materials
and structures with characteristic dimensions in the range of
0.1-100 nm.
When inorganic phases in an organic/inorganic composite
become nanosized, they are called nanocomposites.
•The development in the use of nanocomposites patented in
response to the persistent and discouraging issues of
polymerization shrinkage, strength, microhardness, and wears
resistance essential in posterior occlusal applications
•words like “nano” were coined by the noble laureate Sir Richard
Feynman in 1959
•This discovery was a landmark for advances in dental
composites. Since then, composite fillings became an essential
component of the restorative armamentarium
•The introduction of nanotechnology led to the discovery of nano-
filler particles.
•All efforts were and are being made to achieve considerable
advances in physical properties and tackle issues like
polymerization shrinkage, wear resistance, micro hardness and
achieve patient satisfaction in terms of the aesthetic appearance
Composition
• 13–30 wt.% of polymerizable organic matrix and
• 70–87 wt.% mixture of different inorganic fillers
(silica, tantalum thoxide, zirconia-silica, alumina, nano-fi
brillar silicate and titanium oxide)
• in addition to a photo initiator system or other curing systems
Modification Of
Nanofillers:
• Nanofillers can be prepared by various techniques, such as
flame pyrolysis, flame spray pyrolysis, and sol-gel processes.
• Because extremely small filler particles have dimensions below
the wavelength of visible light (0.4-0.8 μm), they are unable to
scatter or absorb visible light.
• Thus, nanofillers are usually invisible and offer the advantage
of optical property improvement (Mitra et al., 2003).
Modification Of
Nanofillers:
• The increase in filler level results in a lower amount of resin in
nanocomposites and will also significantly reduce
polymerization shrinkage and dramatically improve the
physical properties of nanocomposites.
Nanofillers in Commercial
Nanocomposites
• Filtek Supreme (3M ESPE, St. Paul, MN,
USA), which contains nanometric particles
(nanomers) and nanoclusters (NCs).
• Nanomers are monodispersed, non-
agglomerated, and non-aggregated silica
particles of 20 and 75 nm in diameter.
• Nanocluster fillers are loosely bound
agglomerates of nanosized particles.
NCs were synthesis.
• The first type consisted of zirconia-silica particles
synthesized from a colloidal solution of silica and zirconyl
salt.
• The primary particle size of the NC filler ranged from 2 to 20
nm, and the average size of the spheroidal agglomerated
particles was less than 0.6 μm.
• The second type of NC filler was synthesized from 75-nm
primary particles of silica, and the average size of the
agglomerated particles was 0.6 μm.
NCs were synthesis.
• The silica particles were treated with 3-
methacryloxypropyltrimethoxysilane (MPTS), as a coupling
agent, which contains a silica ester functional group on one
end for bonding to the inorganic surface and a methacrylate
group on the other end to make the filler compatible with the
resin before curing to prevent any agglomeration or
aggregation (Mitra et al., 2003).
• The filler content of Supreme is about 58-60% by volume
and 78.5% by weight.
Premise (Kerr/Sybron,
Orange, CA, USA)
It is a nanohybrid composed of 3
different types of filler components:
• nonagglomerated “discrete” silica
nanoparticles,
• prepolymerized fillers (PPF)
• barium glass fillers .
Premise (Kerr/Sybron,
Orange, CA, USA)
• The non-agglomerated discrete silica nanoparticles are
spheroidal and 20 nm in size.
• The prepolymerized fillers (PPF) are about 30-50 μm in
size, and the barium glass filler has an average particle size
of 0.4 μm
• The manufacturer claims that by incorporating a
"polymerizable dispersant" it has been able to:
(1) increase the percentage filler level
(2) use filler particles with an average
Premise (Kerr/Sybron,
Orange, CA, USA)
• Size smaller than that used in traditional hybrid resin
composites.
• This provides the material with excellent esthetics and
strength.
• The nanocomposite Premise uses a similar technique for
incorporating barium glass fillers into the resin matrix, with
a “trimodel” approach to provide an optimal combination of
3 different filler components: silica nanoparticles, PPF, and
barium glass fillers.
• This combination of 3 fillers allows for increased filler
loading of 69% by volume and 84% by weight.
Premise (Kerr/Sybron,
Orange, CA, USA)
• The discrete unassociated nanoparticles that are well-
dispersed in the matrix on a nanoscale level allow for
increased filler loading and reduced viscosity of
nanocomposites, and thus result in increased
hardness, abrasion resistance, fracture resistance, and
polishability and in reduced polymerization shrinkage
(reported to be 1.4% to 1.6% by volume) and shrinkage
stress (Bauer et al., 2003).
Premise (Kerr/Sybron,
Orange, CA, USA)
• As the interparticle dimension decreases, the load-
bearing stress on the resin is reduced, inhibiting crack
formation and propagation.
• The spheroidal shape of the nanoparticles provides
smooth and rounded edges, distributing stress more
uniformly throughout the composite resin (Terry,
2004a).
Ceram-X Dentsply DeTrey,
Konstanz, Germany
• It is an ormocer-based, nanoceramic
composite (Schirrmeister et al., 2006).
• It contains glass fillers (1.1-1.5 μm),
but differs from conventional hybrid
composites in two important features:
• Methacrylatemodified silicon-dioxide-
containing nanofiller (10 nm)
substitutes for the microfiller that is
typically used in hybrid composites
(agglomerates of silicon dioxide
particles).
Ceram-X Dentsply DeTrey,
Konstanz, Germany
• According to the manufacturer’s data, filler concentration
is 57% by volume and 76% by weight.
• Furthermore, most of the conventional resin matrix is
replaced by a matrix full of highly dispersed methacrylate-
modified polysiloxane particles (2-3 nm).
• According to the manufacturer’s information, these
nanoceramic particles are inorganic–organic hybrid
particles.
• Both nano-ceramic particles and nanofillers have
methacrylate groups available for polymerization
Reinforced Fillers
• Nanofibers
• Short E-glass Fibers
TIO2 Nanoparticles
• Nanofibers
• Short E-glass Fibers
Caries-prevention
Fillers
• Calcium and Phosphate Ion-releasing Fillers
• DCPA-whiskers
• TTCP-whiskers
• Calcium Fluoride
• Polymer-kaolinite
Modification Of
Resin Matrix
• Epoxy-Polyol Matrix
• Epoxy Functionalized Cyclic Siloxane—SiloraneTM
• Epoxy Resin ERL4221
• Silsesquioxane (SSQ)
Bioactive Poly(methyl methacrylate)/SiO2-CaO
Nanocomposites with Dimethyldiethoxysilane
(DMDES)
Modification Of
Silanes
• Silanization with MPTS and OTMS
• Silanization with UDMS, MPTS, and OTMS
• Silanization with GPS
• Silanization with ATES
• Silanization for Improving Fracture Toughness
Clinical
Considerations
• Consideration of Light-curing Modes
• Consideration of Mechanical Properties
Conclusion
• Consideration of Light-curing Modes
• Consideration of Mechanical Properties

Weitere ähnliche Inhalte

Was ist angesagt?

Direct Filling Gold
Direct Filling GoldDirect Filling Gold
Direct Filling Golddrmadhubilla
 
GLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALA
GLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALAGLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALA
GLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALAJagadeesh Kodityala
 
Bioceramic in dentistry ( Endodontics)
Bioceramic in dentistry ( Endodontics)Bioceramic in dentistry ( Endodontics)
Bioceramic in dentistry ( Endodontics)Nakul Patidar
 
Remineralization agents in dentistry
Remineralization agents in dentistryRemineralization agents in dentistry
Remineralization agents in dentistryAurleneJ
 
dental Monoblock obturation technique or concept in endodontics
dental Monoblock obturation technique or concept in endodonticsdental Monoblock obturation technique or concept in endodontics
dental Monoblock obturation technique or concept in endodonticsAhmed Ali
 
Gass Ionomer Cement
Gass Ionomer CementGass Ionomer Cement
Gass Ionomer Cementshabeel pn
 
Nanotechnology in dentistry
Nanotechnology in dentistryNanotechnology in dentistry
Nanotechnology in dentistryashwitha belludi
 
Bleaching
BleachingBleaching
BleachingSai D
 
Pulp Protection
Pulp ProtectionPulp Protection
Pulp Protectionshabeel pn
 
Dentin Bonding agents generations
 Dentin Bonding agents generations Dentin Bonding agents generations
Dentin Bonding agents generationsFarahSarmad3
 
Indirect composite restorations
Indirect composite restorations Indirect composite restorations
Indirect composite restorations Dr ATHUL CHANDRA.M
 
Dental bases and liners
Dental bases and linersDental bases and liners
Dental bases and linersIAU Dent
 

Was ist angesagt? (20)

The Smear Layer
The Smear LayerThe Smear Layer
The Smear Layer
 
Direct Filling Gold
Direct Filling GoldDirect Filling Gold
Direct Filling Gold
 
Pulp capping
Pulp capping Pulp capping
Pulp capping
 
GLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALA
GLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALAGLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALA
GLASS IONOMER CEMENT AND ITS RECENT ADVANCES- by Dr. JAGADEESH KODITYALA
 
Bioceramic in dentistry ( Endodontics)
Bioceramic in dentistry ( Endodontics)Bioceramic in dentistry ( Endodontics)
Bioceramic in dentistry ( Endodontics)
 
Remineralization agents in dentistry
Remineralization agents in dentistryRemineralization agents in dentistry
Remineralization agents in dentistry
 
Pulp protection
Pulp protectionPulp protection
Pulp protection
 
dental Monoblock obturation technique or concept in endodontics
dental Monoblock obturation technique or concept in endodonticsdental Monoblock obturation technique or concept in endodontics
dental Monoblock obturation technique or concept in endodontics
 
Gass Ionomer Cement
Gass Ionomer CementGass Ionomer Cement
Gass Ionomer Cement
 
Obturation technique
Obturation technique Obturation technique
Obturation technique
 
Light curing units
Light curing unitsLight curing units
Light curing units
 
Mta, calcium hydroxide , biodentin
Mta, calcium hydroxide , biodentinMta, calcium hydroxide , biodentin
Mta, calcium hydroxide , biodentin
 
Nanotechnology in dentistry
Nanotechnology in dentistryNanotechnology in dentistry
Nanotechnology in dentistry
 
Bleaching
BleachingBleaching
Bleaching
 
Pulp Protection
Pulp ProtectionPulp Protection
Pulp Protection
 
Dentin Bonding agents generations
 Dentin Bonding agents generations Dentin Bonding agents generations
Dentin Bonding agents generations
 
Indirect composite restorations
Indirect composite restorations Indirect composite restorations
Indirect composite restorations
 
GIC
GICGIC
GIC
 
Dental bases and liners
Dental bases and linersDental bases and liners
Dental bases and liners
 
Deep caries management
Deep caries managementDeep caries management
Deep caries management
 

Ähnlich wie Nanocomposite IN CONSERVATIVE DENTISTRY

Advancements in resin composites
Advancements in resin compositesAdvancements in resin composites
Advancements in resin compositesrawanalazwari
 
Resin based composites(Recent Advances)
Resin based composites(Recent Advances)Resin based composites(Recent Advances)
Resin based composites(Recent Advances)Taduri Vivek
 
Composite ppt (1)
Composite ppt (1)Composite ppt (1)
Composite ppt (1)Dr Ambalika
 
Composite resin restoration in dentistry
Composite resin restoration in dentistryComposite resin restoration in dentistry
Composite resin restoration in dentistryDr. Mayank Nahta
 
اوبرتــــف
اوبرتــــفاوبرتــــف
اوبرتــــفAya Almtwaly
 
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....nupur239418
 
composite Resins in prosthodontics
composite Resins in prosthodonticscomposite Resins in prosthodontics
composite Resins in prosthodonticsDr.Richa Sahai
 
holmes_presentation
holmes_presentationholmes_presentation
holmes_presentationRigel1951
 
Types of resin composites by students at ahram canadian university
Types of resin composites by students at ahram canadian universityTypes of resin composites by students at ahram canadian university
Types of resin composites by students at ahram canadian universityMenna-Allah Ashraf
 
Preparation and characterisation of alumina nanocomposites with aramid fibre ...
Preparation and characterisation of alumina nanocomposites with aramid fibre ...Preparation and characterisation of alumina nanocomposites with aramid fibre ...
Preparation and characterisation of alumina nanocomposites with aramid fibre ...eSAT Journals
 
Modern Restorative Materials.pptx
Modern Restorative Materials.pptxModern Restorative Materials.pptx
Modern Restorative Materials.pptxDentalYoutube
 

Ähnlich wie Nanocomposite IN CONSERVATIVE DENTISTRY (20)

Advancements in resin composites
Advancements in resin compositesAdvancements in resin composites
Advancements in resin composites
 
Composite resins part ii
Composite resins   part iiComposite resins   part ii
Composite resins part ii
 
Resin based composites(Recent Advances)
Resin based composites(Recent Advances)Resin based composites(Recent Advances)
Resin based composites(Recent Advances)
 
Composite ppt (1)
Composite ppt (1)Composite ppt (1)
Composite ppt (1)
 
Composite resin restoration in dentistry
Composite resin restoration in dentistryComposite resin restoration in dentistry
Composite resin restoration in dentistry
 
اوبرتــــف
اوبرتــــفاوبرتــــف
اوبرتــــف
 
COMPOSITE.ppt
COMPOSITE.pptCOMPOSITE.ppt
COMPOSITE.ppt
 
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....
 
nano ceramics and composites
nano ceramics and compositesnano ceramics and composites
nano ceramics and composites
 
composite Resins in prosthodontics
composite Resins in prosthodonticscomposite Resins in prosthodontics
composite Resins in prosthodontics
 
holmes_presentation
holmes_presentationholmes_presentation
holmes_presentation
 
Dentalcomposite
DentalcompositeDentalcomposite
Dentalcomposite
 
Composite and bonding
Composite and bondingComposite and bonding
Composite and bonding
 
Types of resin composites by students at ahram canadian university
Types of resin composites by students at ahram canadian universityTypes of resin composites by students at ahram canadian university
Types of resin composites by students at ahram canadian university
 
Oper.ii 10
Oper.ii 10Oper.ii 10
Oper.ii 10
 
Preparation and characterisation of alumina nanocomposites with aramid fibre ...
Preparation and characterisation of alumina nanocomposites with aramid fibre ...Preparation and characterisation of alumina nanocomposites with aramid fibre ...
Preparation and characterisation of alumina nanocomposites with aramid fibre ...
 
Composite
CompositeComposite
Composite
 
Composites
CompositesComposites
Composites
 
Modern Restorative Materials.pptx
Modern Restorative Materials.pptxModern Restorative Materials.pptx
Modern Restorative Materials.pptx
 
Nanotechnology
NanotechnologyNanotechnology
Nanotechnology
 

Mehr von Deepashri Tekam (17)

Dental burs
Dental bursDental burs
Dental burs
 
Facial nerve
Facial nerveFacial nerve
Facial nerve
 
Irrigation
IrrigationIrrigation
Irrigation
 
Treatment of traumatised tooth
Treatment of traumatised toothTreatment of traumatised tooth
Treatment of traumatised tooth
 
Obturation
ObturationObturation
Obturation
 
Class 2 amalgam restoration
Class 2 amalgam restorationClass 2 amalgam restoration
Class 2 amalgam restoration
 
Ceramic restoration
Ceramic restorationCeramic restoration
Ceramic restoration
 
Rationale of endodontic treatment
Rationale of  endodontic treatmentRationale of  endodontic treatment
Rationale of endodontic treatment
 
Apexification
ApexificationApexification
Apexification
 
Matricing and tooth separation
Matricing and tooth separationMatricing and tooth separation
Matricing and tooth separation
 
Endodontic microbiology
Endodontic microbiologyEndodontic microbiology
Endodontic microbiology
 
Vital tooth bleaching
Vital tooth bleachingVital tooth bleaching
Vital tooth bleaching
 
Tongue
TongueTongue
Tongue
 
Periodontal ligament (PDL)
Periodontal ligament (PDL)Periodontal ligament (PDL)
Periodontal ligament (PDL)
 
Glass ionomer cement
Glass ionomer cementGlass ionomer cement
Glass ionomer cement
 
Casting defects
Casting defectsCasting defects
Casting defects
 
Silver Amalgam Seminar
Silver Amalgam  Seminar Silver Amalgam  Seminar
Silver Amalgam Seminar
 

Kürzlich hochgeladen

Quality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICEQuality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICESayali Powar
 
Presentation on the Basics of Writing. Writing a Paragraph
Presentation on the Basics of Writing. Writing a ParagraphPresentation on the Basics of Writing. Writing a Paragraph
Presentation on the Basics of Writing. Writing a ParagraphNetziValdelomar1
 
How to Add a New Field in Existing Kanban View in Odoo 17
How to Add a New Field in Existing Kanban View in Odoo 17How to Add a New Field in Existing Kanban View in Odoo 17
How to Add a New Field in Existing Kanban View in Odoo 17Celine George
 
AUDIENCE THEORY -- FANDOM -- JENKINS.pptx
AUDIENCE THEORY -- FANDOM -- JENKINS.pptxAUDIENCE THEORY -- FANDOM -- JENKINS.pptx
AUDIENCE THEORY -- FANDOM -- JENKINS.pptxiammrhaywood
 
Diploma in Nursing Admission Test Question Solution 2023.pdf
Diploma in Nursing Admission Test Question Solution 2023.pdfDiploma in Nursing Admission Test Question Solution 2023.pdf
Diploma in Nursing Admission Test Question Solution 2023.pdfMohonDas
 
5 charts on South Africa as a source country for international student recrui...
5 charts on South Africa as a source country for international student recrui...5 charts on South Africa as a source country for international student recrui...
5 charts on South Africa as a source country for international student recrui...CaraSkikne1
 
Prescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptxPrescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptxraviapr7
 
How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17Celine George
 
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...Nguyen Thanh Tu Collection
 
Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...raviapr7
 
P4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdf
P4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdfP4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdf
P4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdfYu Kanazawa / Osaka University
 
The Stolen Bacillus by Herbert George Wells
The Stolen Bacillus by Herbert George WellsThe Stolen Bacillus by Herbert George Wells
The Stolen Bacillus by Herbert George WellsEugene Lysak
 
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRADUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRATanmoy Mishra
 
Practical Research 1: Lesson 8 Writing the Thesis Statement.pptx
Practical Research 1: Lesson 8 Writing the Thesis Statement.pptxPractical Research 1: Lesson 8 Writing the Thesis Statement.pptx
Practical Research 1: Lesson 8 Writing the Thesis Statement.pptxKatherine Villaluna
 
Patterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptxPatterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptxMYDA ANGELICA SUAN
 
Benefits & Challenges of Inclusive Education
Benefits & Challenges of Inclusive EducationBenefits & Challenges of Inclusive Education
Benefits & Challenges of Inclusive EducationMJDuyan
 
The Singapore Teaching Practice document
The Singapore Teaching Practice documentThe Singapore Teaching Practice document
The Singapore Teaching Practice documentXsasf Sfdfasd
 
CAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptxCAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptxSaurabhParmar42
 
3.21.24 The Origins of Black Power.pptx
3.21.24  The Origins of Black Power.pptx3.21.24  The Origins of Black Power.pptx
3.21.24 The Origins of Black Power.pptxmary850239
 
How to Make a Field read-only in Odoo 17
How to Make a Field read-only in Odoo 17How to Make a Field read-only in Odoo 17
How to Make a Field read-only in Odoo 17Celine George
 

Kürzlich hochgeladen (20)

Quality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICEQuality Assurance_GOOD LABORATORY PRACTICE
Quality Assurance_GOOD LABORATORY PRACTICE
 
Presentation on the Basics of Writing. Writing a Paragraph
Presentation on the Basics of Writing. Writing a ParagraphPresentation on the Basics of Writing. Writing a Paragraph
Presentation on the Basics of Writing. Writing a Paragraph
 
How to Add a New Field in Existing Kanban View in Odoo 17
How to Add a New Field in Existing Kanban View in Odoo 17How to Add a New Field in Existing Kanban View in Odoo 17
How to Add a New Field in Existing Kanban View in Odoo 17
 
AUDIENCE THEORY -- FANDOM -- JENKINS.pptx
AUDIENCE THEORY -- FANDOM -- JENKINS.pptxAUDIENCE THEORY -- FANDOM -- JENKINS.pptx
AUDIENCE THEORY -- FANDOM -- JENKINS.pptx
 
Diploma in Nursing Admission Test Question Solution 2023.pdf
Diploma in Nursing Admission Test Question Solution 2023.pdfDiploma in Nursing Admission Test Question Solution 2023.pdf
Diploma in Nursing Admission Test Question Solution 2023.pdf
 
5 charts on South Africa as a source country for international student recrui...
5 charts on South Africa as a source country for international student recrui...5 charts on South Africa as a source country for international student recrui...
5 charts on South Africa as a source country for international student recrui...
 
Prescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptxPrescribed medication order and communication skills.pptx
Prescribed medication order and communication skills.pptx
 
How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17How to Add a many2many Relational Field in Odoo 17
How to Add a many2many Relational Field in Odoo 17
 
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
CHUYÊN ĐỀ DẠY THÊM TIẾNG ANH LỚP 11 - GLOBAL SUCCESS - NĂM HỌC 2023-2024 - HK...
 
Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...Patient Counselling. Definition of patient counseling; steps involved in pati...
Patient Counselling. Definition of patient counseling; steps involved in pati...
 
P4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdf
P4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdfP4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdf
P4C x ELT = P4ELT: Its Theoretical Background (Kanazawa, 2024 March).pdf
 
The Stolen Bacillus by Herbert George Wells
The Stolen Bacillus by Herbert George WellsThe Stolen Bacillus by Herbert George Wells
The Stolen Bacillus by Herbert George Wells
 
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRADUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
DUST OF SNOW_BY ROBERT FROST_EDITED BY_ TANMOY MISHRA
 
Practical Research 1: Lesson 8 Writing the Thesis Statement.pptx
Practical Research 1: Lesson 8 Writing the Thesis Statement.pptxPractical Research 1: Lesson 8 Writing the Thesis Statement.pptx
Practical Research 1: Lesson 8 Writing the Thesis Statement.pptx
 
Patterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptxPatterns of Written Texts Across Disciplines.pptx
Patterns of Written Texts Across Disciplines.pptx
 
Benefits & Challenges of Inclusive Education
Benefits & Challenges of Inclusive EducationBenefits & Challenges of Inclusive Education
Benefits & Challenges of Inclusive Education
 
The Singapore Teaching Practice document
The Singapore Teaching Practice documentThe Singapore Teaching Practice document
The Singapore Teaching Practice document
 
CAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptxCAULIFLOWER BREEDING 1 Parmar pptx
CAULIFLOWER BREEDING 1 Parmar pptx
 
3.21.24 The Origins of Black Power.pptx
3.21.24  The Origins of Black Power.pptx3.21.24  The Origins of Black Power.pptx
3.21.24 The Origins of Black Power.pptx
 
How to Make a Field read-only in Odoo 17
How to Make a Field read-only in Odoo 17How to Make a Field read-only in Odoo 17
How to Make a Field read-only in Odoo 17
 

Nanocomposite IN CONSERVATIVE DENTISTRY

  • 2. • Nanotechnology, also known as nanoscience or molecular engineering, is defined as the creation of functional materials and structures with characteristic dimensions in the range of 0.1-100 nm. When inorganic phases in an organic/inorganic composite become nanosized, they are called nanocomposites.
  • 3. •The development in the use of nanocomposites patented in response to the persistent and discouraging issues of polymerization shrinkage, strength, microhardness, and wears resistance essential in posterior occlusal applications •words like “nano” were coined by the noble laureate Sir Richard Feynman in 1959 •This discovery was a landmark for advances in dental composites. Since then, composite fillings became an essential component of the restorative armamentarium
  • 4. •The introduction of nanotechnology led to the discovery of nano- filler particles. •All efforts were and are being made to achieve considerable advances in physical properties and tackle issues like polymerization shrinkage, wear resistance, micro hardness and achieve patient satisfaction in terms of the aesthetic appearance
  • 5. Composition • 13–30 wt.% of polymerizable organic matrix and • 70–87 wt.% mixture of different inorganic fillers (silica, tantalum thoxide, zirconia-silica, alumina, nano-fi brillar silicate and titanium oxide) • in addition to a photo initiator system or other curing systems
  • 6. Modification Of Nanofillers: • Nanofillers can be prepared by various techniques, such as flame pyrolysis, flame spray pyrolysis, and sol-gel processes. • Because extremely small filler particles have dimensions below the wavelength of visible light (0.4-0.8 μm), they are unable to scatter or absorb visible light. • Thus, nanofillers are usually invisible and offer the advantage of optical property improvement (Mitra et al., 2003).
  • 7. Modification Of Nanofillers: • The increase in filler level results in a lower amount of resin in nanocomposites and will also significantly reduce polymerization shrinkage and dramatically improve the physical properties of nanocomposites.
  • 8. Nanofillers in Commercial Nanocomposites • Filtek Supreme (3M ESPE, St. Paul, MN, USA), which contains nanometric particles (nanomers) and nanoclusters (NCs). • Nanomers are monodispersed, non- agglomerated, and non-aggregated silica particles of 20 and 75 nm in diameter. • Nanocluster fillers are loosely bound agglomerates of nanosized particles.
  • 9. NCs were synthesis. • The first type consisted of zirconia-silica particles synthesized from a colloidal solution of silica and zirconyl salt. • The primary particle size of the NC filler ranged from 2 to 20 nm, and the average size of the spheroidal agglomerated particles was less than 0.6 μm. • The second type of NC filler was synthesized from 75-nm primary particles of silica, and the average size of the agglomerated particles was 0.6 μm.
  • 10. NCs were synthesis. • The silica particles were treated with 3- methacryloxypropyltrimethoxysilane (MPTS), as a coupling agent, which contains a silica ester functional group on one end for bonding to the inorganic surface and a methacrylate group on the other end to make the filler compatible with the resin before curing to prevent any agglomeration or aggregation (Mitra et al., 2003). • The filler content of Supreme is about 58-60% by volume and 78.5% by weight.
  • 11. Premise (Kerr/Sybron, Orange, CA, USA) It is a nanohybrid composed of 3 different types of filler components: • nonagglomerated “discrete” silica nanoparticles, • prepolymerized fillers (PPF) • barium glass fillers .
  • 12. Premise (Kerr/Sybron, Orange, CA, USA) • The non-agglomerated discrete silica nanoparticles are spheroidal and 20 nm in size. • The prepolymerized fillers (PPF) are about 30-50 μm in size, and the barium glass filler has an average particle size of 0.4 μm • The manufacturer claims that by incorporating a "polymerizable dispersant" it has been able to: (1) increase the percentage filler level (2) use filler particles with an average
  • 13. Premise (Kerr/Sybron, Orange, CA, USA) • Size smaller than that used in traditional hybrid resin composites. • This provides the material with excellent esthetics and strength. • The nanocomposite Premise uses a similar technique for incorporating barium glass fillers into the resin matrix, with a “trimodel” approach to provide an optimal combination of 3 different filler components: silica nanoparticles, PPF, and barium glass fillers. • This combination of 3 fillers allows for increased filler loading of 69% by volume and 84% by weight.
  • 14. Premise (Kerr/Sybron, Orange, CA, USA) • The discrete unassociated nanoparticles that are well- dispersed in the matrix on a nanoscale level allow for increased filler loading and reduced viscosity of nanocomposites, and thus result in increased hardness, abrasion resistance, fracture resistance, and polishability and in reduced polymerization shrinkage (reported to be 1.4% to 1.6% by volume) and shrinkage stress (Bauer et al., 2003).
  • 15. Premise (Kerr/Sybron, Orange, CA, USA) • As the interparticle dimension decreases, the load- bearing stress on the resin is reduced, inhibiting crack formation and propagation. • The spheroidal shape of the nanoparticles provides smooth and rounded edges, distributing stress more uniformly throughout the composite resin (Terry, 2004a).
  • 16. Ceram-X Dentsply DeTrey, Konstanz, Germany • It is an ormocer-based, nanoceramic composite (Schirrmeister et al., 2006). • It contains glass fillers (1.1-1.5 μm), but differs from conventional hybrid composites in two important features: • Methacrylatemodified silicon-dioxide- containing nanofiller (10 nm) substitutes for the microfiller that is typically used in hybrid composites (agglomerates of silicon dioxide particles).
  • 17. Ceram-X Dentsply DeTrey, Konstanz, Germany • According to the manufacturer’s data, filler concentration is 57% by volume and 76% by weight. • Furthermore, most of the conventional resin matrix is replaced by a matrix full of highly dispersed methacrylate- modified polysiloxane particles (2-3 nm). • According to the manufacturer’s information, these nanoceramic particles are inorganic–organic hybrid particles. • Both nano-ceramic particles and nanofillers have methacrylate groups available for polymerization
  • 20. Caries-prevention Fillers • Calcium and Phosphate Ion-releasing Fillers • DCPA-whiskers • TTCP-whiskers • Calcium Fluoride • Polymer-kaolinite
  • 21. Modification Of Resin Matrix • Epoxy-Polyol Matrix • Epoxy Functionalized Cyclic Siloxane—SiloraneTM • Epoxy Resin ERL4221 • Silsesquioxane (SSQ) Bioactive Poly(methyl methacrylate)/SiO2-CaO Nanocomposites with Dimethyldiethoxysilane (DMDES)
  • 22. Modification Of Silanes • Silanization with MPTS and OTMS • Silanization with UDMS, MPTS, and OTMS • Silanization with GPS • Silanization with ATES • Silanization for Improving Fracture Toughness
  • 23. Clinical Considerations • Consideration of Light-curing Modes • Consideration of Mechanical Properties
  • 24. Conclusion • Consideration of Light-curing Modes • Consideration of Mechanical Properties

Hinweis der Redaktion

  1. words like “nano” were coined by the noble laureate Sir Richard Feynman in 1959 [36]. This discovery was a landmark for advances in dental composites. Since then, composite fillings became an essential component of the restorative armamentarium. The last decade has witnessed rapid advances in dental restorative materials including the resin-based composites. The introduction of nanotechnology led to the discovery of nano-filler particles. All efforts were and are being made to achieve considerable advances in physical properties and tackle issues like polymerization shrinkage, wear resistance, micro hardness and achieve patient satisfaction in terms of the aesthetic appearance
  2. words like “nano” were coined by the noble laureate Sir Richard Feynman in 1959 [36]. This discovery was a landmark for advances in dental composites. Since then, composite fillings became an essential component of the restorative armamentarium. The last decade has witnessed rapid advances in dental restorative materials including the resin-based composites. The introduction of nanotechnology led to the discovery of nano-filler particles. All efforts were and are being made to achieve considerable advances in physical properties and tackle issues like polymerization shrinkage, wear resistance, micro hardness and achieve patient satisfaction in terms of the aesthetic appearance
  3. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  4. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  5. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  6. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  7. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  8. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  9. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  10. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  11. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  12. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  13. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  14. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  15. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  16. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  17. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  18. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  19. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  20. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  21. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  22. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites
  23. Composition Nanocomposites are composed of two or more materials that include a matrix material and nanoscale particles. The matrix should be a biocompatible polymeric, metallic, or ceramic material. In nanocomposites, it is possible to operate the mechanical properties by incorporating secondary nanoparticles to obtain the same characteristic features of natural bone [38]. The properties of nanostructured materials are completely controlled by their synthesis method, processing means and their chemistry [39]. It has been acknowledged that the intrinsic molecular identification of the molecules is governing the formation, morphological development and crystallography of the nanocomposites