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桥体是固定义齿的重要部分。本文研究了桥体组织面的形态及使用材料。并提出选择固定桥桥体的标准。一、桥体的分类: 1.根据修复部位分类:前牙、前磨牙、磨牙、游离端桥体等四种。 2.根据组织面形态分类:有接触型、部分接触型、悬空型、船底型、有根型、基板型、以及鞍基型(图1)。一般常用接触型、颊侧接触型、悬空型以及船底型。所谓接触型桥体是指桥体与组织为T型接触,即组织面在唇烦侧与牙槽嵴粘膜轻轻接触,而舌侧
Bridge is an important part of the fixed denture. In this paper, the morphology and materials of the bridge tissue surface are studied. And put forward the standard of choosing fixed bridge body. First, the classification of pontic: 1. According to the repair site classification: anterior teeth, premolar, molars, free end of the bridge and other four. 2. According to the organizational surface morphology classification: a contact type, partial contact type, open type, bottom type, root type, substrate type, and saddle type (Figure 1). Common contact type, buccal contact type, dangling type and bottom type. The so-called contact bridge refers to the bridge and T-type tissue contacts, that is, the tissue side of the lip irritation and alveolar mucosa mild contact, and the lingual