Comparisons of in vitro root caries models.
Comparisons of in vitro root caries models.
复制标题
体外根龋模型的比较。
作者：
J. Wefel;J. R. Heilman;T. Jordan
本文的目的是比较各种模型系统的生产在体外根龋，并评估其能力，以模拟自然发生的根龋过程。部分饱和缓冲液模型和凝胶模型进行了评价，使用偏振光显微镜和定性和定量显微放射照相术。在偏振光下检查时，所有模型系统均显示出非常相似的病变形成。当比较显微放射照片时，含有氟化物的系统在病变内显示出清晰的不透射线带。只有在氟化物存在的情况下才会出现条带，这似乎是由于矿化。当使用模拟天然根龋过程的体外系统时，必须了解特定模型的组成部分及其局限性，并意识到需要一种以上的评估技术。
The purpose of this article is to compare various model systems for the production of in vitro root caries and to assess their ability to simulate the naturally occurring root caries process. Partially saturated buffer models and gel models were evaluated using polarized light microscopy and both qualitative and quantitative microradiography. All model systems showed very similar lesion formation when examined under polarized light. When microradiographs were compared, the systems which contained fluoride, showed clear radiopaque bands within the lesion. The bands, which occurred only in the presence of fluoride, appeared to be due to remineralization. When using an in vitro system that simulates the natural root caries process, it is imperative to understand the components of the particular model, as well as its limitations, and to be aware of the need for more than one evaluative technique.