Influence of tooth surface conditions on enamel fluoride uptake after topical application of TiF4in vitro
作者:
GuZhiling,
AndJianguo Li,
SöremarkRune,
期刊:
Acta Odontologica Scandinavica
(Taylor Available online 1996)
卷期:
Volume 54,
issue 5
页码: 279-281
ISSN:0001-6357
年代: 1996
DOI:10.3109/00016359609003538
出版商: Taylor&Francis
关键词: Denial caries;enamel;surface modification;titanium tetrafluoride
数据来源: Taylor
摘要:
Three groups of extracted human teeth were sectioned longitudinally into experimental and control halves. The enamel surfaces of the three groups of teeth were pretreated with 37% H3PO4for 1 min, 0.5 M NaClO3for 2 h, or water rinsing for 10 min. The experimental halves of the three groups received an application of 1% TiF4for 1 min and were washed with deionized water. The tooth specimens were men immersed in synthetic saliva for 24 h at 37°C before sampling for measurement of fluoride uptake. An acid etching technique was used to determine the uptake of fluoride by measuring both fluoride and calcium concentrations in the solution collected from each etched sample. A significantly higher uptake of fluoride was found in teeth rinsed in water and etched with 37% H3PO4 than in teeth pretreated in 0.5 M NaClO3. It seems that the organic components in enamel play an important role in the fluoride uptake after the topical application of TiF4.
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