Development of a new intraoral demineralization test.
Development of a new intraoral demineralization test.
复制标题
开发一种新的口腔内脱矿测试。
DOI：
10.1159/000260797
复制
发表时间：
1984
期刊：
影响因子：
4.2
通讯作者：
Russo,J
中科院分区：
文献类型：
--
作者：
Brudevold,F;Attarzadeh,F;Tehrani,A;vanHoute,J;Russo,J
将覆盖有一层变形链球菌细胞的牛牙釉质块固定在修复体中专门设计的支架上，并在口腔内进行2小时。在口内暴露之前和之后，对块的碘渗透性（Ip）进行测量，结果显示Ip（+ Δ Ip）增加，表明在0和60 min时用10%蔗糖溶液冲洗口腔时发生脱矿作用，但在口内暴露而不冲洗后，Ip（--Δ Ip）降低，表明发生矿化作用。在5名受试者中使用蔗糖冲洗液进行的重复测试显示Δ Ip的受试者内和受试者间重现性良好。在S.来自蔗糖的变细胞层导致pH值典型下降并随后升高（“斯蒂芬”曲线）。在测试期间从器具释放的变应细胞在1至2周内从口腔中消除。
Blocks of bovine enamel covered with a layer ofStreptococcus mutanscells were mounted in specially-designed holders in a prosthesis and carried intraorally for 2 h. Measurements of the iodide permeability (Ip) of the blocks before and after intra-oral exposure showed an increase in Ip (+ΔIp), suggesting demineralization when the mouth was rinsed with a 10% sucrose solution at 0 and 60 min, but a decrease in Ip (––ΔIp), suggesting remineralization, after interoral exposure without rinsing. Repeated tests with sucrose rinses in 5 subjects showed good within and between-subject reproducibility ofΔIp. Acid production in theS. mutanscells layer from sucrose caused a typical decrease and subsequent increase in pH (‘Stephan’ curve).S. mutanscells released from the appliance during the test became eliminated from the mouth within 1 to 2 weeks.