Arab J, Newton J P, Lloyd C H
J Dent. 1989 Aug;17(4):189-94. doi: 10.1016/0300-5712(89)90073-0.
It has been suggested that incomplete or faulty processing leading to a high level of residual monomer is a factor in denture whitening. Laboratory tests which simulate the cleaning procedures used by patients presenting with whitened dentures have been carried out on specimen strips of acrylic denture base material with high or low levels of residual monomer. The results show that these samples exhibit similar changes and that the high level of residual monomer had no effect on the whitening process, this being attributable to the cleaning method. The major factor responsible for whitening is confirmed as a high water temperature irrespective of the presence of the denture cleaning agent. However, some physical properties were adversely affected by a high residual monomer content (due to the processing method) which has serious consequences for denture-wearing patients. The use of short/low temperature curing cycles now common in many dental laboratories should be avoided.
有人认为，导致残留单体含量高的不完全或有缺陷的加工过程是假牙美白的一个因素。已经对具有高或低残留单体水平的丙烯酸假牙基托材料标本条进行了实验室测试，这些测试模拟了佩戴美白假牙的患者所使用的清洁程序。结果表明，这些样品表现出相似的变化，并且高残留单体水平对美白过程没有影响，这归因于清洁方法。经证实，无论是否存在假牙清洁剂，导致美白的主要因素都是水温高。然而，高残留单体含量（由于加工方法）对一些物理性能产生了不利影响，这对佩戴假牙的患者有严重后果。应避免现在许多牙科实验室常用的短/低温固化周期的使用。
