Local ridge augmentation using a composite of bone substitute and collagen membrane at peri-implant dehiscence defects: a clinical, radiographic and histological analyses.

Song,  Young Woo; Yoon,  So-Ra; Cha,  Jae-Kook; Lee,  Jung-Seok; Choi,  Seong-Ho; Jung,  Ui-Won

doi:2017.55.10.676

J Korean Dent Assoc > Volume 55(10); 2017 > Article

The Journal of The Korean Dental Association 2017;55(10):676-687.
DOI: https://doi.org/10.22974/jkda.2017.55.10.001 Published online October 31, 2017.

성견에서 차단막/골이식재 복합체를 이용한 임플란트 주위 골유도재생 효과: 임상적, 방사선학적, 조직학적 평가

송영우¹, 윤소라², 차재국³, 이중석⁴, 최성호⁵, 정의원⁶

^¹연세대학교 치과대학 치주과학교실, 치주조직재생연구소
^²연세대학교 치과대학 치주과학교실, 치주조직재생연구소
^³연세대학교 치과대학 치주과학교실, 치주조직재생연구소
^⁴연세대학교 치과대학 치주과학교실, 치주조직재생연구소
^⁵연세대학교 치과대학 치주과학교실, 치주조직재생연구소
^⁶연세대학교 치과대학 치주과학교실, 치주조직재생연구소

Local ridge augmentation using a composite of bone substitute and collagen membrane at peri-implant dehiscence defects: a clinical, radiographic and histological analyses.

Young Woo Song¹, So-Ra Yoon², Jae-Kook Cha³, Jung-Seok Lee⁴, Seong-Ho Choi⁵, Ui-Won Jung⁶

¹Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry
²Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry
³Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry
⁴Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry
⁵Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry
⁶Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry

Abstract

Objectives
: The aim of this study was to evaluate the effects of a composite of bone substitute and collagen barrier membrane (bone patch) for local ridge augmentation at peri-implant dehiscence defects on the clinical efficacy and positional stability in dogs. Materials and methods : Implant placement and ridge augmentation procedure were performed at surgically created peri-implant dehiscence defects in canine mandible (n=6). Four treatment modalities were randomly applied: i) bone patch group, ii) Guided bone regeneration (GBR) without pin fixation group (bone graft and collagen membrane), iii) GBR with pin fixation group, and iv) negative control group. After 12 weeks, clinical, micro-CT and histological analyses were performed. Results : Histologic analysis showed that bone patch group had similar results to GBR group and GBR with fixation group in terms of new bone formation. Micro-CT analysis revealed similar results to histologic analysis in terms of total volume maintenance. Operating time was shorter in bone patch group compared to GBR group and GBR with fixation groups. Conclusions : GBR using bone patch could simplify the ridge augmentation procedure with reduced operating time and equivalent biological performance compared to the conventional procedure.

Key Words: animal study;ridge augmentation;bone patch;histology;micro-computed tomography;