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Original Article

A Long-term Cumulative Survival Rate of Immediate Implants: Retrospective Study

즉시 식립 임플란트의 장기적 누적생존율에 관한 후향적 연구

Se-Jin Kim1
,
Jun-Hwan Kim2
,
Da-Jeong Namgung2
,
Young Ku2*
김 세진1
,
김 준환2
,
남궁 다정2
,
구 영2*
1Department of Dentistry, School of Dentistry, Seoul National University,
2Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University
1서울대학교 치의학대학원 치의학과
2서울대학교 치의학대학원 치주과학교실
*Corresponding Author. 
March 2018. pp. 36-48
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Abstract

The purpose of this study is to analyze 11-year cumulative survival rate on immediate implants placed between 2006 and 2016 at Seoul National University Dental Hospital by one periodontist (Y. K). With an aggregate 185 implants were calculated 11-year cumulative survival rate with Life table method and assessed the effect of predictor variables with Kaplan-Meier analysis and Cox proportional hazard model. After a mean follow-up time 4.67 years, 16 implants failed and 169 survived among 185 implants. The overall cumulative survival rates at 5 and 11 years were 90% and 90%, respectively. No statistically significant influence was detected between the implant survival rates and the possible risk factors: gender, age, location, history of hypertension and diabetes, smoking, implant type, fixture diameter and length and bone graft. Within the limitations of this retrospective study, immediate implant placement is a reliable and predictable restoration procedure to replace missing teeth.

Keywords
Immediate dental implant
Cumulative survival rate
Cox proportional hazards modeling
Kaplan-Meier analysis

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Information
  • Publisher :The Korean Academy of Oral & Maxillofacial Implantology
  • Publisher(Ko) :대한구강악안면임플란트학회
  • Journal Title :Implantology
  • Journal Title(Ko) :대한구강악안면임플란트학회지
  • Volume : 22
  • No :1
  • Pages :36-48
  • Received Date : 2018-03-17
  • Revised Date : 2018-03-27
  • Accepted Date : 2018-03-28
  • DOI :https://doi.org/10.32542/implantology.20180004
Journal Informaiton Journal of implantology and applied sciences Journal of implantology and applied sciences
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