Download - K_Lec. 4-5-prevention
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Systemic fluoridation
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Topical fluoride therapy
- Dentifrices - Mouth rinses - Fluoridated gel
1 -Self – applied fluoride
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Fluoride
Na2PO3F (MFP).
Decrease solubility, antibacterial. PO3F 2 + H2O H2PO4 + F
Stannous Fluoride, NaF, Amine fluoride 525 -1450 ppm (1000 ppm F).
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Fluoridated Mouth Rinse
NaF (900 ppm F, 0.2% weekly) (225 ppm, 0.05% daily). APF, SnF2, Amine fluoride,
Ammonium fluoride.
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Professionally Applied Fluoride
Sodium fluoride NaF Bibby 1942, Knutson tech
Stannous Fluoride SnF2
Muhler et al 1950, 8%, 10 %, pH=2.1.
Ca10(PO4)6(OH)2 + 19 SnF2
10 CaF2 + 6Sn3F3PO4 + SnO.H2O tinfluorophospate hydrated tinoxide
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Stannous Fluoride
Not stable, metallic taste, staining.
Prevention, Remineralization, desensitizing, antibacterial.
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Acidulated phosphate fluoride
Brudevold et al 1963Increase F conc.Ca10(PO4)6(OH)2 + 20 F 10CaF2+6(PO4) -3+ 2(OH).
Decrease pHCa10(PO4)6(OH)2+ 8 H+ 10Ca2+ + 6HPO4 + H2O
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Fluoridated Varnishes
Duraphate (Heuser and Shmidt 1968).
NaF (50 mg NaF/ml), alcoholic sol. Of natural varnish.
2.26% F ions.
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Applications Frequency
NaF 3-6 months.APF, SnF2 6-12 months.3,6,12 months.
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Fluoridated Gel
APF 0.5% FNaF 1% SnF2 0.4%
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Fluoride in periodontal therapy
Plaque related disease.Stannous Fluoride: - Reduce plaque (gingivitis). - Reduce enamel solubility. - Antibacterial (specific). - Reduce dental hyper sensitivity.
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Types of PatientsType I : (periodontally healthy patient) Treatments: 1- Decrease of dental sensitivity. 2- Reduce plaque volume and age. 3- Reduce deleterious effects of pathogen. 4- Increase retention of fluoride in dental plaque.
Long term high conc. Of fluoride (dentifrices, mouth rinses, gels)
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Type II patients
Periodontal treatments.Control of plaque pathogens. Reduce plaque volume. Reduce post operative sensitivity.Prevents of root caries.
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Fluoridated Agents
NaF, APF, SnF2 SnF2 0.4 %, 1.64%.Irrigation of F solution in to the
pocket.Use as a gel (brush on gel).A combination of CHX and F.