目的了解烤瓷冠修复对牙周组织的影响。方法选择临床病例146例,前牙咬牙合关系基本正常。烤瓷冠戴入6～8个月后复诊,检查牙周状况。结果操作过程视野清晰,无出血,牙龈得到很好保护,制取的印模及石膏模型清晰明确的修复体,未发现有牙周袋的形成。结论通过选择合适的修复体颈缘位置,设计合理,可以使牙周组织得到较好的保护。 Objective To understand the effect of porcelain crowns on periodontal tissue. Methods Select 146 cases of clinical cases, anterior occlusal occlusal relationship was normal. Porcelain crown wear 6 to 8 months after the referral, check the periodontal status. Results clear vision during operation, no bleeding, the gums are well protected, prepared impression and plaster model clear and definite restoration, did not find the formation of periodontal pocket. Conclusion By selecting the proper location of the cervical margin of the prosthesis, the design is reasonable and the periodontal tissue can be well protected.