Occlusal wear of four pit and fissure sealants over two years.
Occlusal wear of four pit and fissure sealants over two years.
复制标题
四种窝沟封闭剂两年来的咬合磨损情况。
作者：
O. E. Jensen;F. Pérez;S. Handelman
将四种不同的市售封闭剂放置在53名年轻参与者的无龋永久前磨牙和磨牙中，共381颗牙齿。使用先前发表的牙齿复制技术，在两年的时间内评价密封剂材料的体积损失。所有材料以及磨牙和前磨牙的渐进性密封剂损失模式相似。一个月后，即第一个采样间隔，约50%的密封剂体积损失。随后的损失率降低。在2年结束时，总体平均密封剂损失约为75%。当表示为应用的密封剂体积的百分比时，材料之间的体积损失没有一致的统计学显著差异。
Four different commercially available sealants were placed in caries-free permanent premolars and molars for a total of 381 teeth in 53 young participants. The volumetric loss of sealant material was evaluated over a two-year period using a tooth replica technique previously published. The pattern of progressive sealant loss was similar for all materials and for molars and premolars. Approximately 50% of the applied sealant volume was lost after one month, which was the first sampling interval. Subsequent loss occurred at a reduced rate. At the end of two years, the overall mean sealant loss was approximately 75%. There were no consistent statistically significant differences between materials regarding volumetric loss when expressed as a percentage of applied sealant volume.