McKnight-Hanes C, Myers D R, Salama F S, Thompson W O, Barenie J T
School of Dentistry, Medical College of Georgia, Augusta.
Pediatr Dent. 1990 Jul-Aug;12(4):241-5.
The purpose of this project was to develop an invasive index to: 1) compare the treatments recommended by dentists for the occlusal surfaces of molars; 2) compare the invasive index score of each tooth with the extent of the carious lesion as determined by electrical resistance and histological examination; and 3) compare the relative extent of the total crown destruction resulting from the carious lesion and the cavity preparation. Twenty dentists examined 19 extracted permanent molar teeth using a #23 explorer and selected the most appropriate treatment from the following options: no treatment (score 0), occlusal sealant (score 1), preventive resin (score 2), occlusal amalgam (score 3). The invasive index scores determined for each dentist and each tooth were compared using an analysis of variance. The electrical conductivity of each tooth was measured with an electronic caries detector (Vanguard). Electrical resistance scores were compared to the invasive index scores and to a histological examination. The results demonstrate that the invasive index is a useful means to compare treatments recommended by different dentists. The invasive index suggests there is considerable variation among dentists in the treatment they recommend for occlusal surfaces. Electrical resistance testing did not provide helpful information for treatment planning of questionably carious occlusal surfaces.
本项目的目的是制定一个侵入性指数，以：1）比较牙医针对磨牙咬合面推荐的治疗方法；2）将每颗牙齿的侵入性指数得分与通过电阻和组织学检查确定的龋损范围进行比较；3）比较龋损和窝洞预备导致的全冠破坏的相对程度。二十位牙医使用#23探针检查了19颗拔除的恒牙，并从以下选项中选择最合适的治疗方法：不治疗（得分0）、咬合面封闭剂（得分1）、预防性树脂修复（得分2）、咬合面汞合金修复（得分3）。使用方差分析比较为每位牙医和每颗牙齿确定的侵入性指数得分。用电子龋病检测仪（先锋）测量每颗牙齿的电导率。将电阻得分与侵入性指数得分以及组织学检查结果进行比较。结果表明，侵入性指数是比较不同牙医推荐的治疗方法的有用手段。侵入性指数表明，不同牙医针对咬合面推荐的治疗方法存在相当大的差异。电阻测试对于可疑龋坏的咬合面的治疗计划没有提供有用信息。
