Transcript Document
Applications in Dentristry 7/17/2015 1 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. 7/17/2015 2 Indications-continued Bond orthodontic brackets. Treat dentinal hypersensitivity. Repair fractured porcelain, amalgam, and resin restorations. Pit and fissure sealants. Core build up foundations. 7/17/2015 3 Sealants 2. Apply sealant 1. Etch enamel 3. Light cure Courtesy of 3M Dental Products 7/17/2015 4 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. 7/17/2015 5 COMPOSITION POWDER = CALCIUM FLUOROALUMINOSILICATE GLASS Silicon 13.3% Aluminum 13.3% Calcium 17.3% Sodium 1.6% Phosphorus 2.5% Fluoride 22.7% Oxygen 28.0% LIQUID = POLYACRYLIC ACID OR 7/17/2015 COPOLYMER OF ACRYLIC ACID WATER 6 7/17/2015 7 Composites 7/17/2015 8 Most Common Dental Resin bisphenol A glycol dimethacrylate triethylene glycol dimethacrylate 7/17/2015 9 7/17/2015 10 7/17/2015 11 7/17/2015 12 Fractured incisors http://www.seattledentist.com/chippedteeth.htm 7/17/2015 13 50 Yellow & 50 Pink Self-Etching Primer Self-Etching Primer Micro-Tips EP-B EP-A LINKMAX Packaging Mixing Pad LINKMAX A3 Cartridge Ceramic Primer LINKMAX Clear Cartridge Dispensing Dish Metal Primer II Package 7/17/2015 Mixing Spatula Micro-Tip Handle 14 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 7/17/2015 15 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. 7/17/2015 16 BONDING MICRO-FILLED HYBRID RESIN Apply thin layer to prosthesis with microtip. Light-cure for 20 seconds Using a VLC Curing Light. Dispense LINKMAX and 7/17/2015 mix for 10 seconds. Apply LINKMAX to primed porcelain surface. Shake the Self-Etching Primer bottles, then dispense one drop each into dispensing dish and mix for 5 seconds. Apply to tooth surface. Hold for 1 minute. Lightcure for 1-2 seconds; then remove excess. Light-cure each surface for 17 20 seconds. BONDING MICRO-FILLED HYBRID RESIN Composite Primer LINKMAX Self-Etching Primer MFR Hybrid Resin Inlay Composite Primer LINKMAX 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. 7/17/2015 Self-Etching Primer 18 BONDING PORCELAIN Apply etchant, after 30 seconds, rinse with water and dry. Dispense LINKMAX and mix for 10 seconds. 7/17/2015 Dispense one drop each Ceramic Primer into dispensing dish and mix for 5 seconds. Apply to bonding surface and dry. Apply LINKMAX to primed porcelain surface. Shake the Self-Etching Primer bottles, then dispense one drop each into dispensing dish and mix for 5 seconds. Apply to tooth surface. Hold for 1 minute. Lightcure for 1-2 seconds; then remove excess. Light-cure each surface for 20 seconds. 19 BONDING PORCELAIN • •• • Etchant Etchant Ceramic Primer LINKMAX Self-Etching Primer Ceramic Primer LINKMAX Self-Etching Primer Porcelain Inlay Ceramic Primer Etchant LINKMAX Ceramic Primer LINKMAX Self-Etching Primer Porcelain Veneer 7/17/2015 Self-Etching Primer Etchant 20 BONDING METAL PROSTHESIS TO TOOTH STRUCTURE Metal Primer II Metal Crown LINKMAX SelfEtching Primer 7/17/2015 21 7/17/2015 22 The future Adhesive dentistry Biocompatible materials Antibacterial, bioactive, drug delivery Increasing use of implants Improving the properties of adhesive materials. e.g. wear resistance, strength Shorter healing periods Poorer quality bone Less bone Growing natural teeth 7/17/2015 23