At present, the domestic investigations concerned the occlusion of middle-aged and elder mainly include tooth missing 、 tooth abrasion 、 occlusal trauma and so on, but the studies on the occlusal support are also rare either in domestic or foreign. 目前国内有关中老年人咬合状态的调查研究,主要集中在牙齿缺失情况、牙齿磨耗、咬合创伤等方面,专门描述咬合支持状态的研究报道还较少见。
PURPOSE to analyze the reasons of the occlusal disorder after posterior teeth lost, trauma and serious wearing teeth, to observe the masticatory efficiency and the clinical changes of temporomandibular disorders ( TMD) after occlusal reconstruction using fixed prosthesis. 目的临床分析咬合失调患者的病因,采用固定修复术重建咬合,测定治疗前后的咀嚼效能及观察颞下颌关节紊乱病的临床变化。