Universidad de Granada, Granada, Spain.
Med Oral Patol Oral Cir Bucal. 2011 Nov 1;16(7):e978-83. doi: 10.4317/medoral.17358.
The aim of this study was to evaluate the relationship between the caries risk in children over a two-year period and their baseline caries status, salivary levels of mutans streptococci and lactobacilli, and results of the Alban test and modifications thereof using different substrates.
Ninety-five children aged 6-7 were examined in Granada (southern Spain) for dental caries at baseline and every six months. Stimulated saliva was sampled and inoculated in 7 colorimetric tests based on Snyder's medium with different sugars and polyalcohols. A mutans streptococci and lactobacilli count was performed (Dentocult SM strip® and Dentocult LB®). Caries risk proportions were contrasted against the potential predictor variables, i.e., basal caries history and salivary tests, by means of the Mantel Haenszel test for linear association, based on a chi-square distribution with 1 degree of freedom (df).
Caries index, lactobacillus count and colorimetric tests showed significant, but limited, and non-different discriminant abilities. Increasing values of all predictor variables, except for Dentocult SM®, were related to increasing caries risk proportions.
Colorimetric test results and caries history showed similar correlation values as caries predictors.
本研究旨在评估儿童在两年期间的龋齿风险与基线龋齿状况、变形链球菌和乳杆菌的唾液水平以及使用不同底物的 Alban 试验及其改良结果之间的关系。
在西班牙南部格拉纳达，95 名 6-7 岁的儿童在基线和每 6 个月接受一次龋齿检查。采集刺激唾液，并接种在基于 Snyder 培养基的 7 种比色试验中，这些培养基含有不同的糖和多元醇。进行变形链球菌和乳杆菌计数（Dentocult SM 条®和 Dentocult LB®）。通过基于卡方分布（自由度为 1）的 Mantel Haenszel 检验，对基线龋齿史和唾液试验等潜在预测变量与龋齿风险比例进行线性关联对比。
龋齿指数、乳杆菌计数和比色试验显示出显著但有限且无差异的鉴别能力。除了 Dentocult SM®外，所有预测变量的数值增加都与龋齿风险比例的增加相关。
比色试验结果和龋齿史与龋齿预测因素显示出相似的相关性值。
