|Year : 1996 | Volume
| Issue : 1 | Page : 1-6
In vitro evaluation of NaF and APF-gel application on surface microhardness of enamel in children of low, optimum and high fluoride areas.
VV Reddy, KR Indushekar
Bapuji Dental College and Hospital, Davangere, India
An in vitro study was conducted on 78 sound human pre-molars collected from low (0.24 ppmF), optimum (0.7 ppmF) and known endemic fluoride areas (> 1.5 ppmF), to study the effects of topical application of sodium fluoride and APF-gel on surface microhardness of enamel of these three areas using Vickers microhardness measurements before and after application of topical fluorides at time intervals of 1/2 an hour, 6 hours and 24 hours. It was found that both the topical fluorides increased the surface microhardness of enamel in the three areas; the maximum increase in surface microhardness was observed in fluorosed teeth. APF-gel was found to be more effective than sodium fluoride.
V V Reddy
Bapuji Dental College and Hospital, Davangere
Source of Support: None, Conflict of Interest: None
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