Analysis of Reasons for the Fracture of Implant and Abutment of Tapered Lock Post

doi:10.13701/j.cnki.kqyxyj.2022.06.014

Abstract

Abstract: Objective: To analyze the clinical causes of implant or abutment fracture and explore the preventive methods. Methods: Four implants and seven abutments were broken in 9 patients. The side functions, crown height space, and occlusal surface morphology of the broken patients were counted, and the clinical causes were analyzed. Results: The main factor for the fracture of 1 implant, 3 solid abutments, and 2 hollow abutments was the side function. The main factor for the fracture of 3 implants and 1 hollow abutment was the excessive space of crown height. The main factor for the fracture of a solid abutment was the excessive inclination of the cusp of the occlusal surface. Conclusion: The fracture of implant or abutment is the result of multiple factors. The side function, too large crown height space, and too high cusp inclination of the occlusal surface of the prosthesis will increase the fracture probability, which should be treated with caution in clinic.

Key words: dental implant, conical locking column implant, implant fracture, abutment fracture

YU Zhengrong, YANG Jingjing, GONG Jinmei, HU Changqi, HUANG Jiangqin, GUO Shuigen, WEI Hongwu. Analysis of Reasons for the Fracture of Implant and Abutment of Tapered Lock Post[J]. Journal of Oral Science Research, 2022, 38(6): 559-564.

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