Journal of the Korean Association of Oral and Maxillofacial Surgeons

The Korean Association of Oral and Maxillofacial Surgeons (대한구강악안면외과학회)
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PREPROSTHETIC STAGE DENTAL IMPLANT FAILURE

보철전단계의 치과 임프란트 실패

  • Kim, Jae-Seung (Department of Oral & Maxillofacial Surgery, College of Medicine, Ulsan University(Asan Medical Center)) ;
  • Chang, Hyun-Ho (Department of Oral & Maxillofacial Surgery, College of Medicine, Ulsan University(Asan Medical Center)) ;
  • Chang, Cheol-Ho (Department of Oral & Maxillofacial Surgery, College of Medicine, Ulsan University(Asan Medical Center)) ;
  • Rhyu, Sung-Ho (Department of Oral & Maxillofacial Surgery, College of Medicine, Ulsan University(Asan Medical Center)) ;
  • Kang, Jae-Hyun (Department of Oral & Maxillofacial Surgery, College of Medicine, Ulsan University(Asan Medical Center))
  • 김재승 (울산대학교의과대학, 치과학교실(서울중앙병원)) ;
  • 장현호 (울산대학교의과대학, 치과학교실(서울중앙병원)) ;
  • 장철호 (울산대학교의과대학, 치과학교실(서울중앙병원)) ;
  • 류성호 (울산대학교의과대학, 치과학교실(서울중앙병원)) ;
  • 강재현 (울산대학교의과대학, 치과학교실(서울중앙병원))
  • Published : 2001.04.30
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Abstract

Since the introduction of the concept of osseointegration, the success rate of dental implant has increased dramatically. So, the uses of dental implant in the treatment of partially or fully edentulous patients have played an important role in dental rehabilitation. Regardless of high success rate of dental implant, some amounts of fixtures cannot help failing. We can classify dental implant failure according to timing, causative factor, etc. This study is focused on dental implant fixture failure, occurring during preprosthetic stage. There are various reasons that cause implant failure on this periods, such as improper patient selection, poor bone quality, and periimplantitis, etc. We investigate the survival rate of 1058 fixtures, which installed in 306 patients in our clinic from January 1997 to December 1999, according to type, sex, location, fixture length and width, using Kaplan-Meier product-limit method and to compare each other with log-rank test. Overall survival rate was 96.80%, and 33 implants failed over the preprosthetic stage. Our survey data identified posterior location of mandible as being associated with implant failure(P<0.05).

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