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Applications in Dentristry

Applications in Dentristry. 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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Applications in Dentristry

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  1. Applications in Dentristry

  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.

  3. Indications-continued • Bond orthodontic brackets. • Treat dentinal hypersensitivity. • Repair fractured porcelain, amalgam, and resin restorations. • Pit and fissure sealants. • Core build up foundations.

  4. 2. Apply sealant Sealants 1. Etch enamel 3. Light cure Courtesy of 3M Dental Products

  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.

  6. COMPOSITION POWDER = CALCIUM FLUOROALUMINOSILICATE GLASS • Silicon 13.3% Phosphorus 2.5% • Aluminum 13.3% Fluoride 22.7% • Calcium 17.3% Oxygen 28.0% • Sodium 1.6% • LIQUID = POLYACRYLIC ACID OR • COPOLYMER OF ACRYLIC ACID • WATER

  7. Composites

  8. Most Common Dental Resin bisphenol A glycol dimethacrylate triethylene glycol dimethacrylate

  9. Fractured incisors http://www.seattle-dentist.com/chipped-teeth.htm

  10. LINKMAX 50 Yellow & 50 Pink Micro-Tips Self-Etching Primer EP-B Packaging Self-Etching Primer EP-A Mixing Pad LINKMAX A3 Cartridge Ceramic Primer LINKMAX Clear Cartridge Dispensing Dish Metal Primer II Package Micro-Tip Handle Mixing Spatula

  11. 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

  12. 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.

  13. BONDING MICRO-FILLED HYBRID RESIN Shake the Self-Etching Primer bottles, then dispense one drop each into dispensing dish and mix for 5 seconds. Apply to tooth surface. Apply thin layer to prosthesis with micro-tip. Light-cure for 20 seconds Using a VLC Curing Light. Hold for 1 minute. Light-cure for 1-2 seconds; then remove excess. Light-cure each surface for 20 seconds. Apply LINKMAX to primed porcelain surface. Dispense LINKMAX and mix for 10 seconds.

  14. 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.

  15. BONDING PORCELAIN 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. Apply etchant, after 30 seconds, rinse with water and dry. Hold for 1 minute. Light-cure for 1-2 seconds; then remove excess. Light-cure each surface for 20 seconds. Apply LINKMAX to primed porcelain surface. Dispense LINKMAX and mix for 10 seconds.

  16. BONDING PORCELAIN • Etchant Etchant • • Ceramic Primer 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

  17. BONDING METAL PROSTHESIS TO TOOTH STRUCTURE Metal Primer II Metal Crown LINKMAX Self-Etching Primer

  18. The future • Adhesive dentistry • 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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