1. Applications in Dentristry
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2. ADHESIVE DENTISTRY Indications
Replace carious and fractured tooth structure.
Fill erosion or abrasion defects in cervical areas.
Correct unaesthetic shapes, positions, dimensions, or shades.
Bond silver amalgam restorations.
Cement crowns.
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3. Indications-continued
Bond orthodontic brackets.
Treat dentinal hypersensitivity.
Repair fractured porcelain, amalgam, and resin restorations.
Pit and fissure sealants.
Core build up foundations.
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4. Sealants 2. Apply sealant 1. Etch enamel 3. Light cure
PREVENTIVE DENTAL MATERIALS
To prevent disease or injury to the teeth and supporting tissues
Flouride gels, pit and fissure sealants, mouth protectors
TOPICAL APPLICATION OF FLOURIDE
Acidulated phosphate-flouride gels (Na and H flouride & orthophosphoric acid)
Reduction in dentalcaries of approx 40% were observed in 2 studies of 2 years’ duration in which the gel was applied annually.
PIT AND FISSURE SEALANTS
A reduction in smooth surface caries has been accomplished by:
Flouridation of communal water supplies
topical application of fluoride during enamel development
individual plaque control programs.
84% of dental caries in children ages 5 to 17 involve pits
The purpose of the pit and fissure sealant is to penetrate all cracks, pits and fissures on the occlusal surfaces of both deciduous and permanent teeth to seal off these susceptible areas.
Most commercial pit and fissure sealants are:
- BIS-GMA (bisphenol glycidyl methacrylate)
- Urethane dimethacrylate
Chemistry similar to that of the dental composites
Very fluid to penetrate the pits and fissures and etched areas on enamel
Courtesy of 3M Dental
Products
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5. Glass-ionomers
Most commonly referred to as glass ionomer cements (GIC's).
These are materials which consist of an aqueous polyacrylate and a fluoroaluminosilicate glass.
These set by an acid-base reaction in the presence of water.
These cements appear to adhere to tooth structure by formation of ionic bonds as a result of chelation of the carboxyl groups in the acid with the calcium and/or phosphate ions in the apatite of enamel and dentin.
GLASS IONOMER CEMENTS
Finely ground aluminosilicate glass
Liquid is a polycarboxylate copolymer
The chemical reaction gives rise to a cross-linked gel matrix
Bonding to tooth tissue occurs between the polycarboxylate molecules and calcium on the surface of the tooth.
There are other cements like:
Zinc oxide eugenol cements
Zinc polycarboxylate cements
For
Cementation of inlays, veneers, orthodontic bands and brackets, resin-bonded bridges etc.
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6. COMPOSITION POWDER = CALCIUM FLUOROALUMINOSILICATE GLASS
Silicon 13.3% Phosphorus 2.5%
Aluminum 13.3% Fluoride %
Calcium 17.3% Oxygen %
Sodium 1.6%
LIQUID = POLYACRYLIC ACID OR
COPOLYMER OF ACRYLIC ACID
WATER
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8. Composites
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9. Most Common Dental Resin
bisphenol A glycol dimethacrylate
triethylene glycol dimethacrylate
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13. Fractured incisors http://www.seattle-dentist.com/chipped-teeth.htm
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14. LINKMAX Packaging Self-Etching Primer EP-B
50 Yellow & 50 Pink Micro-Tips
Packaging
Self-Etching Primer EP-A
Mixing Pad
LINKMAX A3 Cartridge
Ceramic Primer
LINKMAX Clear Cartridge
Metal Primer II Package
Dispensing Dish
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Micro-Tip Handle
Mixing Spatula

15. Paste Pak Dispenser • Produces Ideal Consistency Every Time.
• Dispenses The Exact Mixing Ratio No Matter How Little Or How Much Material Dispensed.
• Metering Slide Enables The User To Control The Volume Of Material Dispensed To Reduce Waste.
More
Less
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16. Dual Cure: Light Cure & Self Cure
• Temporary Light-Cured Linkmax Removes Easily With Hand Instrument One Minute After Seating.
• No Radical Clean-Up Procedure Should Be Required.
• Light-Cure Each Surface Of Restoration 20 Seconds.
• When Used Under Metal Or When Cement is Difficult To Expose To Light, Linkmax Self-Cures In 6 Minutes From Placement Of Prosthesis.
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17. BONDING MICRO-FILLED HYBRID RESIN
Apply thin layer to prosthesis with micro-tip.
Light-cure for 20 seconds Using a VLC Curing Light.
Shake the Self-Etching Primer bottles, then dispense one drop each into dispensing dish and mix for 5 seconds. Apply to tooth surface.
Dispense LINKMAX and mix for 10 seconds.
Apply LINKMAX to primed porcelain surface.
Hold for 1 minute. Light-cure for 1-2 seconds; then remove excess.
Light-cure each surface for 20 seconds.
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18. BONDING MICRO-FILLED HYBRID RESIN
Composite Primer
LINKMAX
Self-Etching Primer
MFR Hybrid Resin Inlay
Composite Primer
LINKMAX
Self-Etching Primer
NOTE:When bonding MFR hybrid resin
(with main ingredients of organic fillers)
from another manufacturer, apply
CERAMIC PRIMER to the prosthesis
instead of COMPOSITE PRIMER.
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19. BONDING PORCELAIN
Apply etchant, after 30 seconds, rinse with water and dry.
Dispense one drop each Ceramic Primer into dispensing dish and mix for 5 seconds. Apply to bonding surface and dry.
Shake the Self-Etching Primer bottles, then dispense one drop each into dispensing dish and mix for 5 seconds. Apply to tooth surface.
Dispense LINKMAX and mix for 10 seconds.
Apply LINKMAX to primed porcelain surface.
Hold for 1 minute. Light-cure for 1-2 seconds; then remove excess.
Light-cure each surface for 20 seconds.
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20. • • • • BONDING PORCELAIN Etchant Etchant Ceramic Primer
LINKMAX
LINKMAX
Self-Etching Primer
Self-Etching Primer
Porcelain Inlay
Ceramic Primer
Etchant
LINKMAX
Ceramic Primer
LINKMAX
Self-Etching Primer
Self-Etching Primer
Porcelain Veneer
Etchant
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21. BONDING METAL PROSTHESIS TO TOOTH STRUCTURE
Metal Primer II
Metal Crown
LINKMAX
Self-Etching Primer
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23. The future Adhesive dentistry Biocompatible materials
Improving the properties of adhesive materials. e.g. wear resistance, strength
Biocompatible materials
Antibacterial, bioactive, drug delivery
Increasing use of implants
Shorter healing periods
Poorer quality bone
Less bone
Growing natural teeth
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