| Shan Lal, DDS | |
| Pediatric Dentistry |
| Tooth Paste | |
| Mouth Washes | |
| Fluorides | |
| Sealants | |
| Mouth guards |
| Components/composition | |
| Colloidal binding agents - Na Alginate, methy cellulose | |
| Function: prevent separation of the components in the tube during storage. | |
| Humectants (moistens or dilutes) - glycerin | |
| Function: reduces water loss by evaporation. | |
| Preservatives - used to inhibit bacterial growth. | |
| Flavoring agents | |
| 5. Abrasives - Ca carbonate, hydrated silica | |
| Ca pyrophosphate, Na bicarbonate | |
| Function: removal of plaque, stains, calculus. | |
| 6. Detergents - Na laurylsulphate | |
| Function: used to reduce surface tension and enhance the removal of debris from the tooth surface. | |
| 7. Therapeutic agents - Stannous Fl | |
| Function: increased uptake of Fl ion leading to increased resistance of Fluorapatite to acid demin |
| Active agent - anti-caries, antimicrobial | |
| Solution - water, alcohol - preservative | |
| Surfactant - Na laurylsulphate | |
| ph - 3.4 - 6.6 | |
| Ethanol 0-27% | |
| carcinogenic effects | |
| staining |
| Fluoride gels, foam and varnish: | |
| Used for remineralisation of decalcified enamel and incipient caries. | |
| Sealants: | |
| Indicated for preventing and arresting incipient lesions. | |
| Available as clear or white, filled or unfilled, containing Fluoride or not. |
| Gels, Foams, Rinses, Varnishes | |
| APF gel - 2% NaF, 0.34%HF, 0.98% Phos acid | |
| 4 min application is optimal | |
| No eating or drinking for 1hr post application | |
| Applied twice a year | |
| A 5 yr old pt lives in an area with .75 ppm flouride. What is the recommended Fl supplement in this case? NDB-87 | |
| 5% NaF | ||
| Long History in Europe | ||
| Excellent Clinical Effectiveness | ||
| 0.1% Difluorosilane | ||
| Durafluor, Omnifluor, etc. | ||
| Easy to Use: Paint THIN Layer on Dry Teeth | ||
| 24 Hour Slight Yellowing | ||
| - A child spends his first seven years in a community in a temperate zone, water supply contains 3 ppm flouride, mottling will develop in which teeth? NDB’87 |
| F inhibits glucosyltransferase. Strep mutans uses this to produce dextrans to attach to teeth. | |
| Fl prevents smooth surface caries NOT pit and fissure caries….Sealants prevent pit and fissure C. | |
| Toxic flouride dose =5mg/kg. | |
| Lethal dose=20mg/kg. | |
| Antidote-milk and antacids containing calcium. |
| Flourides affect the tooth in the following manner-Chemically reacts with hydroxyapatite crystals to replace the hydroxyl ions, | |
| Only effects the outer layers of enamel…makes the apatite crystals more resistant to acid,…Increases remineralization. | |
| Total reduction of smooth surface caries by flouride – | |
| 75-90%, (systemic 30%, topical30%, occlusal sealants-30%). | |
| Fluorosilicate glass powder(base) combined with a water soluble polymer(acid) | |
| e.g. - Ketac cement | |
| Resin-modified glass ionomer cements: | |
| are glass ionomers with a light polymerised resin component. | |
| e.g.- Vitrebond and Vitremer |
| Advantages: | |
| Increased mechanical properties | |
| Physiochemically bonds to tooth structure | |
| Biocompatible, moisture forgiving | |
| Similar coefficient of thermal expansion as dentin therefore a good dentin replacement material. (sandwich technique) | |
| Ion lechability - Fluoride release(anticariogenic action) | |
| Minimal polymerization shrinkage | |
| Stock, custom made | |
| Technique - Place a polyvinyl polyethylene thermoplastic sheet over the model on a vacuform. Trim to fit. |
| Recommended reading… | |
| “Craig” | |
| Dental Decks |