PREVENTIVE DENTALMATERIALSShan Lal, DDSPediatric DentistryTooth PasteComponents/composition1. Colloidal binding agents - Na Alginate, methycelluloseFunction: prevent separation of the componentsin the tube during storage.2. Humectants (moistens or dilutes) - glycerinFunction: reduces water loss by evaporation.3. Preservatives - used to inhibit bacterial growth.4. Flavoring agentsMouth Washes1. Active agent - anti-caries, antimicrobial2. Solution - water, alcohol - preservative3. Surfactant - Na laurylsulphateph - 3.4 - 6.6Ethanol 0-27%- carcinogenic effects- stainingPreventive Dental Materials Tooth PasteMouth WashesFluoridesSealantsMouth guardsTooth Paste5. Abrasives - Ca carbonate, hydrated silicaCa pyrophosphate, Na bicarbonateFunction: removal of plaque, stains, calculus.6. Detergents - Na laurylsulphateFunction: used to reduce surface tension andenhance the removal of debris from the toothsurface.7. Therapeutic agents - Stannous FlFunction: increased uptake of Fl ion leading toincreased resistance of Fluorapatite to acid deminPreventive Materials1. Fluoride gels, foam and varnish: Used for remineralisation of decalcifiedenamel and incipient caries.2. Sealants: Indicated for preventing and arrestingincipient lesions. Available as clear or white, filled orunfilled, containing Fluoride or not.1

FluoridesGels, Foams, Rinses, VarnishesAPF gel - 2% NaF, 0.34%HF, 0.98% Phosacid- 4 min application is optimal- No eating or drinking for 1hr postapplication- Applied twice a yearQuestion1.A 5 yr old pt lives in an area with .75ppm flouride. What is the recommendedFl supplement in this case? NDB-872

Fluoride Varnishes 5% NaFLong History in EuropeExcellent Clinical Effectiveness0.1% Difluorosilane Durafluor, Omnifluor, etc. Easy to Use: Paint THIN Layer on DryTeeth 24 Hour Slight YellowingQuestion- A child spends his first seven years in acommunity in a temperate zone, watersupply contains 3 ppm flouride, mottlingwill develop in which teeth? NDB’87NDB Excerpts F inhibits glucosyltransferase. Strep mutans usesthis to produce dextrans to attach to teeth. Fl prevents smooth surface caries NOT pit andfissure caries .Sealants prevent pit and fissure C. Toxic flouride dose 5mg/kg. Lethal dose 20mg/kg. Antidote-milk and antacids containing calcium.NDB Excerpts Flourides affect the tooth in the following mannerChemically reacts with hydroxyapatite crystals toreplace the hydroxyl ions, Only effects the outer layers of enamel makesthe apatite crystals more resistant toacid, Increases remineralization. Total reduction of smooth surface caries byflouride –75-90%, (systemic 30%, topical30%, occlusalsealants-30%).3


QuickTime and aPhoto CD Decompressorneeded to use this pictureGlass Ionomer cements Fluorosilicate glass powder(base) combinedwith a water soluble polymer(acid)e.g. - Ketac cement Resin-modified glass ionomer cements:are glass ionomers with a light polymerisedresin component.e.g.- Vitrebond and VitremerResin-modified glass ionomersAdvantages:1. Increased mechanical properties2. Physiochemically bonds to tooth structure3. Biocompatible, moisture forgiving4. Similar coefficient of thermal expansion as dentintherefore a good dentin replacement material. (sandwichtechnique)5. Ion lechability - Fluoride release(anticariogenic action)6. Minimal polymerization shrinkageMouthguards Stock, custom made Technique - Place a polyvinyl polyethylenethermoplastic sheet over the model on avacuform. Trim to fit.5

Decompressoruse this pictureQuickTime and aPhoto CD Decompressorneeded to use this pictureThank you !Recommended reading “Craig”Dental Decks6

Preventive Dental Materials Tooth Paste Mouth Washes Fluorides Sealants Mouth guards Tooth Paste Components/composition 1. Colloidal binding agents - Na Alginate, methy cellulose Function: prevent separation of the components in the tube during storage. 2. Humectants (moistens or dilutes) - glycerin Function: reduces water loss by evaporation. 3. Preservatives - used to .