患者男,22岁,乳光牙,因(?)缺失要求修复而来我院就诊。 口外检查:面下1/3距离明显变短,咬合位垂直距离5.2cm,口唇外突;体息位垂直距离5.5cm。双侧关节无明显症状。 口内检查:(?)缺失,前后牙列均过度磨损达牙颈部。根管口钙化。牙釉质几乎全部磨去,牙本质呈琥珀色。(?)松动,颊根外露达根尖部;(?)龋坏 Male patient, 22 years old, opalescent teeth, due to (?) Deletion requires repair to our hospital. Oral examination: surface 1/3 significantly shorter distance, occlusal vertical distance 5.2cm, lips protruding; body of information vertical distance 5.5cm. Bilateral joint no obvious symptoms. Mouth examination: (?) Deletion, before and after the dentition are excessive wear and tear on the teeth of the neck. Root canal calcification. Enamel almost completely worn off, dentin amber. (?) Loosening, the root of the buccal root exposed Dargen; (?) Carious lesions