摘要
抗磨耗能力是牙科材料的一个重要性能。本研究应用自制的刷牙耗试验机，以牙膏液作为磨耗介质，以重量损失、厚度损失、色差值作为指标，考察了Ｐｅｋａｆｉｌ复合树脂、金瓷标本及Ｐｌａｔ铸造陶瓷着色剂的抗磨耗能力。结果表明：Ｐｅｋａｆｉｌ复合树脂的磨耗损失最明显，Ｐｌａｔ铸造陶瓷及着色剂的磨耗损失与Ｖｉｔａ体瓷近似，但表面着色标本磨耗试验前后的色差值高于金瓷标本。
Abstract Wear resistance is one of the most important properties of dental materials. This study was directed to evaluate the wear resistance of Plat castable ceramics by a specially made toothbrushing abrasive machine. Toothpaste-water(1g/2ml) was introduced as the abrasive medium and PFM's and composite resins as control groups. The results indicated that the composite resin(Pekafil) was worn much greater than the eramic samples (P<0.01).Toothbrushing abrasion could wear down the Plat castable ceramics and the matched stains as much as body porcelain(Vita).The castable ceramic restorations should be autoglazed after surface staining to prevent the wearing of surface stains.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
1994年第3期224-226,共3页
West China Journal of Stomatology
