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Effects of ammonium hexafluorosilicate application on demineralized enamel and dentin of primary teeth.
- Source :
-
Journal of oral science [J Oral Sci] 2012 Sep; Vol. 54 (3), pp. 267-72. - Publication Year :
- 2012
-
Abstract
- Silver diamine fluoride (Ag(NH(3))(2)F) arrests caries but stains teeth black. To overcome this drawback, we applied ammonium hexafluorosilicate (AHF; (NH(4))(2)SiF(6)) and observed changes in the color and structure of demineralized enamel and dentin of extracted primary teeth. Enamel and dentin were demineralized in 10% EDTA solution for 90 s followed by 35% phosphoric acid gel for 60 s, then soaked in AHF solution for 60 s. Before analysis by scanning electron microscopy (SEM) and energy-dispersive X-ray spectrometry (EDS), enamel and dentin were demineralized in 10% EDTA for 90 s. Teeth were divided into 4 groups according to AHF application and artificial saliva immersion status and then examined. The data were statistically analyzed using one-way ANOVA and Fisher's PLSD test at a significance level of P < 0.05. AHF treatment did not cause visible discoloration. Enamel prisms and dental tubules appeared by demineralization were covered with precipitates by AHF application. A sphere-filled membranous structure was observed in the saliva immersion groups. EDS analysis showed that AHF application had no effect on enamel; however, F% and Ca/P ratio were significantly higher on dentin surfaces after AHF application without artificial saliva immersion. Further study on arresting caries treatment is required.
- Subjects :
- Analysis of Variance
Calcium Phosphates analysis
Dental Enamel chemistry
Dentin chemistry
Fluorides analysis
Fluorides pharmacology
Fluorides therapeutic use
Humans
Microscopy, Electron, Scanning
Quaternary Ammonium Compounds therapeutic use
Silicic Acid pharmacology
Silicic Acid therapeutic use
Spectrometry, X-Ray Emission
Dental Caries drug therapy
Dental Caries pathology
Dental Enamel drug effects
Dentin drug effects
Quaternary Ammonium Compounds pharmacology
Tooth, Deciduous drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 1880-4926
- Volume :
- 54
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Journal of oral science
- Publication Type :
- Academic Journal
- Accession number :
- 23047038
- Full Text :
- https://doi.org/10.2334/josnusd.54.267