치근단 수술 시 형성된 골결손 부위를 가진 치아의 발치 후 즉시 식립 임플란트에서 골 접촉률에 대한 흡수성 차폐막의 효과
Effect of resorbable membrane on immediate placement of implant in extraction socket during periradicular surgery
양승민, 계승범, 신승윤,
소속 상세정보
양승민 ( Yang Seung-Min ) - 성균관대학교 의과대학 삼성서울병원 치과진료부 치주과
계승범 ( Kye Seung-Beom ) - 성균관대학교 의과대학 삼성서울병원 치과진료부 치주과
신승윤 ( Shin Seung-Yun ) - 성균관대학교 의과대학 삼성서울병원 치과진료부 치주과
KMID : 0363020080380040603
Abstract
Purpose: The guided bone regeneration (GBR) technique is widely used in periradicular surgery. However, there is still some controversy regarding the effectiveness of GBR in promoting bone healing after periradicular surgery. The purpose of this study was to evaluate the resorbable membrane on the osteointegration of immediate implants in sites with periradicular lesion that had been removed by periradicular surgery.
Materials and methods: Six roots of lower second premolars and 15 roots of lower third and fourth premolars of dogs were used as control and experimental teeth, respectively. Periradicular lesions were induced only in the experimental teeth. Twelve weeks later, the control and experimental teeth were extracted and implants were placed immediately. Periradicular lesions were removed with osteotomy, curettage and saline irrigation. Resorbable membranes were used in experimental group 1 but not in experimental group 2. After 12 week of healing period, the implants were clinically not mobile and showed no signs of infection. Data obtained by histomorphometric analysis were analyzed by Kruskal-Wallis test.
Results: The control group showed a significantly higher bone to implant contact (BIC) () than experimental group 1 () and 2 ()(p<0.05). However, there was no significant difference between experimental group 1 and 2.
Conclusion: Although BIC in experimental groups were lower than in control group, immediate implant can be successfully placed at extraction socket with periradicular lesion and osseous defect. However, the use of resorbable membrane in bony defect created during periradicular surgery was questioned.
키워드
Immediate implants;periradicular surgery;osseous defect;resorbable membrane
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