[用X射线微量分析测定龈上牙石中的氟含量]

[Fluoride content in supragingival dental calculus measured with X-ray microanalysis].

作者信息

Pawlaczyk-Kamieńiska Tamara, Borysewicz-Lewicka Maria, Józwiak Karol

机构信息

Klinika Stomatologii Dzieciecej, Katedra Stomatologii Dzieciecej Akademii Medycznej im. Karola Marcinkowskiego ul. Bukowska 7, 60-812 Poznań.

出版信息

Ann Acad Med Stetin. 2006;52 Suppl 1:79-82.

PMID:17469508

Abstract

PURPOSE

Sparse reports on the composition of mineralized deposits forming in the child's oral cavity generally reveal their lower degree of mineralization. As reports on the formation of dental calculus in children are incomplete, we decided to study some conditions in which this process takes place. The aim of the study was to determine whether fluorine is present in supragingival dental calculus. We enrolled 12-year-old children (17 girls, 11 boys) living in a large city.

RESULTS

X-ray microanalysis of dental calculus revealed the presence of carbon, oxygen, calcium, phosphorus, sodium, magnesium, potassium, sulphur, chlorine, silicon, and fluorine. Chemical analysis of 10 sites on each specimen showed large variations as to the number of elements found and their content. Fluorine was present in one specimen only (3.6%) at a very high concentration of 10.27%+/-1.27 (w/w). Chemical composition of mineralized dental deposits shows marked individual variability and the presence of fluorine is not a constant finding.

摘要

目的

关于儿童口腔内形成的矿化沉积物组成的稀疏报告通常显示其矿化程度较低。由于关于儿童牙石形成的报告不完整，我们决定研究这一过程发生的一些条件。该研究的目的是确定龈上牙石中是否存在氟。我们招募了居住在大城市的12岁儿童（17名女孩，11名男孩）。

结果

牙石的X射线微分析显示存在碳、氧、钙、磷、钠、镁、钾、硫、氯、硅和氟。对每个标本上10个部位的化学分析表明，所发现元素的数量及其含量存在很大差异。仅在一个标本中发现了氟（3.6%），其浓度非常高，为10.27%±1.27（重量/重量）。矿化牙沉积物的化学成分显示出明显的个体差异，氟的存在并非恒定发现。