二期处理光固化复合树脂耐磨性的测定  

Determination of the secondarily treated composite resins wearproof

作　　者：江中明[1,2] 洪法廉[1,2] 王鑫源[1,2] 

机构地区：[1]上海第二军医大学长海医院 [2]西安第四军医大学口腔医学院

出　　处：《牙体牙髓牙周病学杂志》1998年第3期187-188,共2页Chinese Journal of Conservative Dentistry

摘　　要：目的：测定经过二期处理光固化复合树脂的耐磨性。方法：３种光固化复合树脂光固化４０ｓ后，分别光照５ｍｉｎ，１４０℃热处理７．５ｍｉｎ和０．６ＭＰａ１２０℃加压加热处理７ｍｉｎ，用自制的牙刷磨耗机磨刷７５０００次。结果：经过二期处理的光固化复合树脂，其磨耗率均比其对照组（光照４０ｓ）低，范围在１７．７８％～２９．１８％之间，且有统计学差异（Ｐ＜０．０５）。但３种材料之间无统计学差异（Ｐ＞０．０５）。Aim: To determine the secondarily treated composite resins wearproof. Methods: The three light cured composite resins secondarily treated by light cured for 5min, heat treatment at 140℃ for 7.5min or cured at 120℃ at 0.6MPa pressure under water for 7min after light cured for 40s, then wore 75000 in selfmade toothtrust instrument. Results: The rate of wear was significant lower than that of the control groups (light cured 40s only) range from 17.78%～29.18%. It had statistical difference ( P <0.05), but these three light cured composite resins had no statistical difference. Conclusions: The wearproof of the secondarily treated composite resins is better than that of the control groups.

关 键 词：二期处理 磨耗率 光固化复合树脂 牙科材料学 

分 类 号：R783.1[医药卫生—口腔医学]