Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (10): 1092-1095.DOI: 10.13701/j.cnki.kqyxyj.2016.10.023

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A Retrospective Analysis of Platform-switching Implants with Abutment Fracture.

CHEN Yu-huan, ZHANG Zhi-yong*, ZHANG Xiao, MENG Tian, CHEN Quan, GAO Wei, LIU Wen-shu, ZHOU Tuan-feng, ZHANG Feng.   

  1. Department of Oral and Maxillofacial Surgery, Outpatient Department of School and Hospital of Stomatology, Peking University, Beijing 100034, China
  • Received:2016-04-07 Online:2016-10-26 Published:2016-10-26

Abstract: Objective: To collect the cases of platform-switching implants with abutment fracture and analyze the reasons for clinical treatment. Methods: We collect platform-switching implants with abutment fracture from 2007 to 2014 in the Outpatient Department of Peking University School of Stomatology. Inclusion criteria: using Ankylos implants; patients with complete data; imaging and clinical examination confirmed abutment fracture. Results: Abutment fracture occurred in 16 patients, 17 implants and 18 abutments, including 9 males and 7 females. The average age was 47.69±9.56 years old. The average functional loading time was 3.89±1.68 years. No bone resorption was observed. Conclusion: Abutment fracture was likely to occur in the first molar and canine regions where the mastication force is great. Platform-switching implants showed the stability of the marginal bone. It should be taken serious consideration to choose platform-switching implant when the space of the tooth is large in the first molar region.

Key words: Abutment fracture, Oral implantology, Platform switching

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