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作固定义齿时,必须认真考虑桥体。特别是桥体类型、桥体组织面的材料、形态及与牙嵴粘膜的关系和邻间隙。由于桥体组织面的材料和形态不完备,桥体周围易成为牙垢、牙结石、牙菌斑滞留的不卫生环境,菌斑控制也很困难。因此,许多学者对桥体组织面的类型、材料、形态和邻间隙及其与牙嵴粘膜的关系及影响作了不少的研究。现简略综述于后。一、理想的桥体应具备的条件 1.咀嚼、发音功能得到很好的恢复。2.对牙周组织的损害小。3.给基牙的负担不能过重。4.美观、舒适。5.坚固耐用。6.能自洁、便于清洗和保持清洁。
For a fixed denture, the bridge must be carefully considered. Especially the type of pontic bridge, the material and morphology of bridge tissue surface and the relationship with the crest mucosa and the adjacent gap. Due to the imperfect material and shape of the bridge tissue surface, the bridge around the body easily become plaque, calculus, dental plaque retention unhygienic environment, plaque control is also very difficult. Therefore, many scholars have done a lot of research on the type, material, morphology and adjacent space of the pontine tissue surface and its relationship with the dental ridge mucosa. Now a brief overview of the later. First, the ideal bridge should have the conditions 1. Chewing, pronunciation function has been well restored. 2. Damage to periodontal tissue is small. 3. To the burden on the abutment can not be overweight. Beautiful, comfortable. 5 durable. 6. Self-cleaning, easy to clean and keep clean.