416例人群牙齿的平均磨耗程度调查-牙齿论文发表 keywords】 persons; tooth abrasion; clinical investigation; incisal and occlusion surface [gap=302]关键词】 人；牙磨损；临床调查；切缘及咬牙合面
基于250个网页-相关网页
Objective to investigate the relationship between tooth abrasion and long-term chewing betel nut.
目的：探讨长期咀嚼槟榔与牙体磨损的关系。
The scroll wrap is the main movement part of compressor, only have the tooth, have no abrasion, thus the life is longer, so this is free maintenance compressor.
涡旋压缩机主要运动件涡盘只有啮合没有磨损，因而寿命更长，被誉为免维修压缩机。
On the other hand, a hard-bristled brush, coupled with vigorous brushing can result in recession of the gums and the abrasion of tooth enamel and exposed root surfaces.
另一方面，硬毛牙刷刷，刷的积极可能导致经济衰退的牙龈和牙齿的珐琅质磨损，暴露根耦合表面。
应用推荐