Effect of ammonium hexafluorosilicate application for arresting caries treatment on demineralized primary tooth enamel.

Yumiko Hosoya, Katsumi Tadokoro, Hideji Otani, Kiyoshi Hidaka, Takashi Inoue, Masashi Miyazaki, Franklin Chi Meng Tay

Research output: Contribution to journalArticle

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Abstract

Ammonium hexafluorosilicate (AHF) has been applied to arrest caries without discoloration. The purpose of this study was to observe structural and elemental changes of demineralized and AHF applied primary tooth enamel. Enamel from the labial surface of 20 primary canines was divided into an unground side and ground side at the center of the tooth, and demineralized with 35% phosphoric acid for 6 min. The teeth were divided into 4 groups according to a 3-min application of AHF and 1 week of soaking in artificial saliva, as follows: group A (neither AHF nor saliva), group B (only saliva), group C (only AHF), and group D (AHF and saliva), and then subdivided according to whether the enamel was ground or unground. Specimens were analyzed with scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS). The data were statistically analyzed using ANOVA and Fisher's PLSD test at α = 0.05. In groups A and B, prism structures were seen, however, in groups C and D, enamel surfaces were covered with spherical particles. Ca/P ratio was significantly higher in groups C and D than in groups A and B. There was no significant difference between ground and unground enamel in the content of any element. The values for F, Na, Mg and Si persents and Ca/P ratio were significantly higher for the enamel surface than for points 10-30 μm beneath the surface. Results of this study suggest the possibility that AHF treatment arrests caries, although further study will be required to confirm this result.

Original languageEnglish (US)
Pages (from-to)115-121
Number of pages7
JournalJournal of oral science
Volume55
Issue number2
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

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Deciduous Tooth
Dental Enamel
Saliva
Tooth
Artificial Saliva
X-Ray Emission Spectrometry
Lip
hexafluorosilicate
Electron Scanning Microscopy
Canidae
Analysis of Variance

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Effect of ammonium hexafluorosilicate application for arresting caries treatment on demineralized primary tooth enamel. / Hosoya, Yumiko; Tadokoro, Katsumi; Otani, Hideji; Hidaka, Kiyoshi; Inoue, Takashi; Miyazaki, Masashi; Tay, Franklin Chi Meng.

In: Journal of oral science, Vol. 55, No. 2, 01.01.2013, p. 115-121.

Research output: Contribution to journalArticle

Hosoya, Yumiko ; Tadokoro, Katsumi ; Otani, Hideji ; Hidaka, Kiyoshi ; Inoue, Takashi ; Miyazaki, Masashi ; Tay, Franklin Chi Meng. / Effect of ammonium hexafluorosilicate application for arresting caries treatment on demineralized primary tooth enamel. In: Journal of oral science. 2013 ; Vol. 55, No. 2. pp. 115-121.
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