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目的分析桩核金属烤瓷冠修复失败的原因,提高金属烤瓷桩核冠的修复率。方法对桩核金属烤瓷冠修复失败的39例患者通过问诊、拍片,并与叩诊、探诊等口腔临床检查相结合,进行分析总结。结果导致失败的原因为崩瓷9例,冠脱落8例,牙龈及牙周炎6例,桩脱落5例,继发牙髓炎4例,桩核折断3例,根折2例,食物嵌塞2例。结论桩核金属烤瓷冠修复失败的原因很多,临床医生在选择病例时要严格掌握适应证,认真细心地对待每一个环节,同时做好宣教工作,提高患者的远期效果。
Objective To analyze the reasons for the failure of PFM crown restoration and to improve the repair rate of PFM crown. Methods Thirty-nine patients who failed to repair PFN PFM were interviewed and photographed, and then combined with oral clinical examinations such as percussion and exploration to analyze and summarize. The results of the failure of the reasons for the collapse of porcelain in 9 cases, 8 cases of crown off, gingival and periodontitis in 6 cases, 5 cases of peel off, secondary pulpitis in 4 cases, 3 cases of broken pile nucleus, root fracture in 2 cases, food embedded Plug in 2 cases. Conclusion There are many reasons for the failed restoration of the PFM PFM. Clinicians should strictly observe the indications when selecting the patients, treat each aspect carefully and carefully, and do the missionary work well at the same time to improve the long-term effect of the patients.