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2-Re mineralization of incipient lesion. 3-Interference with plaque microorganism. 4-Improved tooth morphology. Systemic
Uses of Fluoride in Dental Practices BY:
Sulafa El-Samarrai Preventive &pedodontic department
General Mechanisms of Action in Caries Reduction 1-Increase enamel resistance or reduction in enamel solubility Ca10(PO4)6 (OH)2 + 2 FCa10 (PO4)6 (OH)2 + 20 F-
Ca10(PO4)6 F2 + 2 OH CaF2 + 6PO43- + 2OH-
2-Re mineralization of incipient lesion 3-Interference with plaque microorganism 4-Improved tooth morphology.
Systemic and Topical Fluoride Therapy
Dietary Fluoride Supplements Indications: 1- High risk to dental caries. 2- Medically compromised children. Recommendation: - Co operation of parents. - Non fluoridated area (less than 0.3 ppm). - Bottled water (0.3 – 0.8).
Primary preventive programs for children and adults In subjects with high risk to dental caries. Patients with rampant caries. Patients with hypo salivations or xerostomia. Patients with sensitive teeth due to tooth wear as (abrasion, attrition, erosion) or because of exposed root. Patients with periodontits and root caries. Patients with orthodontic appliance.
A 10 ml of rinse used by forcefully swishing of liquid around the mouth for one minute then expectorate. should not be given 1- To children under six years of age, as they cannot control muscles of swallowing. 2- Children living in fluoridated area or receiving fluoride supplements.
Fluoridated Gel NaF or APF (5000 ppm). 2- SnF2 (1000 ppm),
glycerin – based solution. Patients with rampant caries. Patients with xerostomia. Patients with sensitive teeth due to tooth wear as (abrasion, attrition, erosion) or because of exposed root. Root caries.
Used by trays or brush. Expectoration.. 4 weeks course.
Not used for children under 6 years.
Professionally applied fluoride Medicaments typically dispensed by dental professional in the dental office to prevent or arrest dental caries The concentration range of fluoride in these agents is 9000 – 22000 ppm.
Slow release or semi-slow release agents. Prolonged exposure time and high fluoride concentrations result in the formation of a large calcium fluoride reservoir. Fluoride release continues for a long time, as for at least 8 hours or even for several weeks according to the type used.
- Duraphate It contains 5% NaF (2.26% F).
- Fluor protector 0.9% silane fluoride (0.1% F).
-Bifluoride 12 containing 6% NaF and 6% CaF2
1- Cleaning teeth. 2- Apply varnish by brush. Indication - high risk group. - Initial caries even for children under 6 years of age as can be applied on the affected surface only. - Highly indicated for sensitive teeth - Root caries.
Prophylactic paste SnF2 – Zirconium silicate. APF – Silicon dioxide. Should Not Replaces Topical Fluoride.
Conclusions Fluoride Used systemically and topically to reduce and prevent dental caries. Systemically: Given during period of tooth formation. Topically: Given in the post eruptive maturation period through out life Multiple fluoride therapy.