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Reasons of Cleft and Fall of Porcelain after Ceramic Repair with Metal Internal Fixation

MENG Qing-jie, SUN Lian-chao (The Stomatophylaxis and Treatment Hospital of Daoli Distric of Harbin City, Harbin 150010, China)  
Objective To discuss the cleft and fall of porcelain after ceramic repair with metal internal fixation so that to improve this technique. Methods The manufacture method was according to routine PFM. Results There were 21 teeth of 13 cases among 437 teeth of 167 cases the cleft and fall of porcelain after ceramic repair with metal internal fixation happened due to varied reasons of disconnection between metal. Conclusion The better manufacture and design could reduce the happening of cleft and fall of porcelain after ceramic repair with metal internal fixation.
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