In vivo effects of fluoride on enamel permeability
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : In vivo effects of fluoride on enamel permeability Stefano Chersoni & Angelica Bertacci ,David H. Pashley ,Franklin R. Tay ,Lucio Montebugnoli ,Carlo
- چاپ و سال / کشور: 2010
Description
This in vivo study evaluated the effects of topical fluoride application on enamel by repeated scanning electron microscopy analysis of replicas. Baseline fluid droplets were employed as qualitative indication of enamel permeability. CaF2-like globules were detected in vivo after fluoride application and were not found after professional brushing, ultrasound action, or chemical extraction. Absence of water permeability of enamel was demonstrated even after removal of CaF2-like globules. Droplets reappeared within 1 h in sodium fluoride-treated teeth, but they did not reappear even after 1 week following topical enamel treatment with acidulated phosphate fluoride. Teeth treated with an acidulate fluoridefree solution showed lack of CaF2-like globules and no droplets for at least 1 week as detected in acidulate phosphate fluoride-treated teeth. The caries-preventing action of fluoride may be due to its ability to decrease permeability and diffusion pathways. CaF2-like globules seem to be indirectly involved in enamel protection over time maintaining an impermeable barrier, and phosphoric acid seemed
Clin Oral Invest (2011) 15:443–449 DOI 10.1007/s00784-010-0406-x Received: 26 November 2009 / Accepted: 15 March 2010 / Published online: 7 April 2010
