Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
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Factors associated with the survival rate and the marginal bone loss of dental implant over 7-years loading

7년 이상 기능한 임플란트의 변연골 흡수와 생존율에 영향을 주는 요인

  • Choi, Jung-Hyeok (Department of Periodontology, School of Dentistry, Pusan National University, Dental Research Institute) ;
  • Koh, Jae-kwon (Department of Periodontology, School of Dentistry, Pusan National University, Dental Research Institute) ;
  • Kwon, Eun-Young (Department of Periodontology, School of Dentistry, Pusan National University, Dental Research Institute) ;
  • Joo, Ji-Young (Department of Periodontology, School of Dentistry, Pusan National University, Dental Research Institute) ;
  • Lee, Ju-Youn (Department of Periodontology, School of Dentistry, Pusan National University, Dental Research Institute) ;
  • Kim, Hyun-Joo (Department of Periodontology, School of Dentistry, Pusan National University, Dental Research Institute)
  • 최정혁 (부산대학교 치의학전문대학원 치주과) ;
  • 고재권 (부산대학교 치의학전문대학원 치주과) ;
  • 권은영 (부산대학교 치의학전문대학원 치주과) ;
  • 주지영 (부산대학교 치의학전문대학원 치주과) ;
  • 이주연 (부산대학교 치의학전문대학원 치주과) ;
  • 김현주 (부산대학교 치의학전문대학원 치주과)
  • Received : 2018.03.09
  • Accepted : 2018.04.02
  • Published : 2018.06.30
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Abstract

Purpose: The purpose of this study was to analyze the factors affecting the survival rate and the marginal bone level of dental implants that have functioned over 7-years. Materials and Methods: In 92 patients, 178 dental implants were included. Implant-related factors (diameter, length, prosthetic splint), patient-related factors (gender, smoking, plaque index, compliance to supportive periodontal therapy) and surgery-related factors (proficiency of surgeon, bone graft) were evaluated via clinical and radiographic examination. The marginal bone level was determined by intraoral standard radiography at the mesial and distal aspects of each implant using an image analysis software program. Results: The survival rate of all the implants was 94.94% and the marginal bone level was $0.89{\pm}1.05mm$, these results are consistent with other studies that present long-term good clinical results. Implant length and plaque index among several factors were statistically significant for implant survival rate (P < 0.05). Smoking and the presence of regeneration surgery were statistically significant for the marginal bone level (P < 0.05). Conclusion: Dental implant that have functioned over 7-years showed favorable long-term survival rates and marginal bone level. Implant length and plaque control should be considered for improving the long-term clinical results. It is needed that careful application of bone regeneration technique and smoking control for maintaining of marginal bone level.

목적: 본 연구는 7년 이상 기능한 임플란트의 생존율과 평균 변연골 수준에 영향을 미치는 요인을 분석하고자 하였다. 연구 재료 및 방법: 92명의 환자에서 178개의 임플란트를 대상으로 하였다. 임상적 및 방사선학적 검사를 통해 임플란트 관련 요인(임플란트 직경, 임플란트 길이, 상부 보철물 고정 유무), 환자 관련 요인(성별, 흡연, 치태지수, 유지 치주치료 순응도) 및 수술 관련 요인(술자 숙련도, 골재생술 시행 유무)을 조사하였다. 구내 표준 방사선 촬영 이 후 각 임플란트의 근심 및 원심 변연골 수준은 이미지 분석 소프트웨어 프로그램을 사용하여 측정하였다. 결과: 임플란트의 생존율은 94.94%였고, 평균 변연골 흡수는 $0.89{\pm}1.05mm$였다. 임플란트 길이와 치태지수는 임플란트 생존율과 통계적으로 유의하였다(P < 0.05). 흡연과 골재생술 시행 유무는 변연골 흡수와 통계적으로 유의하였다(P < 0.05). 결론: 본 연구에서 7년 이상 기능한 임플란트는 양호한 생존율과 변연골 수준을 보였다. 임플란트의 장기적인 유지를 위해서는 임플란트의 길이, 치태조절에 유의하며 변연골 수준의 유지를 위해서는 골재생술의 신중한 적용, 흡연의 조절이 필요하다.

Keywords

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