上前牙美学牙冠延长术及术后修复

美学牙冠延长术通常以健康、舒适、美观为主要目的。为达到这个目的,必须作好详尽的术前检查,根据临床检查作出明确的诊断。手术应注意术前定位、考虑冠根比、判断牙齿断端与牙槽嵴顶的关系、采取合适的处理牙龈乳头的手术方法以及注意相邻牙齿的美观协调。术后的愈合与修复要掌握好时机,选择龈下边缘的修复类型时要慎重,防止破坏生物学宽度,修复体的设计要与患者的美学特点相协调。本文从临床操作的角度对以上问题作一综述。

Aesthetic crown lengthening of upper anterior teeth and some correlative problems about postoperative prosthodontics

Aesthetic crown lengthening surgery usually aims at a healthy, good-looking, functional and comfortable result. For this purpose, a careful examination should be given before the operation, which is determinant to the right diagnosis. During the surgery, there are many necessary preparations, such as determinatin of the position, the ratio of crown to root, the distance between the surface of the tooth and the crest, the right method forpapillae management and coordinating with adjacent teeth. Then, the following restoration should be at the right time. Also, we should carefully choose subgingival margins. This review addresses on the above clinic problems, in hope of giving suggestions to clinicians.