Cast post-core and porcelain-fused-metal combined crowns restore separated mandibular molar residual crowns and roots in 42 cases

doi:10.3969/j.issn.2095-4344.2015.47.018

Abstract

Abstract:

BACKGROUND: A large number of studies have shown that cast metal post-core has many advantages that it is close to the canal wall has high strength and can shape the core outside the root according to the needs. The cast metal post-core also has good retention, resistance and well effect on clinical repair of dental defects.

OBJECTIVE: To observe the clinical effect of Co-Cr alloy cast post-core and porcelain fused metal combined crowns in restoration of the separated mandibular molar residual crowns and roots.

METHODS: Totally 28 patients (42 teeth) who had the separated mandibular molar residual crowns and roots were enrolled, including 10 males and 18 females, aged 18-32 years. After perfect root canal therapy and part of teeth with crown lengthening, teeth were repaired with Co-Cr alloy cast post-core and porcelain fused metal combined crowns. The patients were followed up for 2 years. The repair effect was evaluated by combining clinical manifestations with X-ray examination.

RESULTS AND CONCLUSION: During 2 years of follow-up, 26 cases were repaired successfully, 2 cases failed, including 1 case of periapical periodontitis and 1 case of periodontitis. These results demonstrate that the cast post-core and porcelain-fused-metal combined crown has a good result on the residual root and crown of the separated mandibular molar.
中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Post and Core Technique, Chromium Alloys, Molar, Tissue Engineering

Liu Wei-feng, Yan Hui-xin, Liu Ji-hua. Cast post-core and porcelain-fused-metal combined crowns restore separated mandibular molar residual crowns and roots in 42 cases[J]. Chinese Journal of Tissue Engineering Research, 2015, 19(47): 7644-7648.

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