두개골에 이식한 다양한 형태의 자가골에 의한 골성 회복 양상 비교 평가

최소영; 이상한; 신홍인; 권태건; 김진수; 김진욱; 이수연

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두개골에 이식한 다양한 형태의 자가골에 의한 골성 회복 양상 비교 평가
A comparative study of various type of autogeneous bone graft on the rabbit-skull defect healing

대한구강악안면외과학회지 2008년 34권 4호 p.428 ~ 434

최소영, 이상한, 신홍인, 권태건, 김진수, 김진욱, 이수연,

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최소영 ( Choi So-Young ) - 경북대학교 치과대학 구강악안면외과학교실
이상한 ( Lee Sang-Han ) - 경북대학교 치과대학 구강악안면외과학교실
신홍인 ( Shin Hong-In ) - 경북대학교 치의학대학원 구강병리학교실
권태건 ( Kwon Tae-Geon ) - 경북대학교 치과대학 구강악안면외과학교실
김진수 ( Kim Chin-Soo ) - 경북대학교 치과대학 구강악안면외과학교실
김진욱 ( Kim Jin-Wook ) - 경북대학교 치과대학 구강악안면외과학교실
이수연 ( Lee Su-Youn ) - 경북대학교 치과대학 구강악안면외과학교실

KMID : 0355620080340040428

Abstract

Introduction: Piezosurgery device is one of the most commonly used instrument on the intraoral surgery such as maxillary sinus lift and autogeneous bone graft. Piezosurgery instrument also contains the tips that are manufactured especially for the convenient bone graft, which now many surgeons apply them for collecting bone graft materials in the curettage method for the restoration of skull defects. However, objective data has not been shown concerning the effects about bone graft with using Piezosurgery. Therefore we investigated the effects of Piezosurgery on the rabbit-skull defect healing.

Materials & Methods: To investigate the regeneration of the bony defect with various bone graft, 10 adult New Zealand white rabbits (average weight : 2.8 ± 0.3kg, about 12weeks) were used. The four circular bony defects measuring 6mm in diameter were made with Piezosurgery device on each rabbit cranial bone. The harvested bone tissues during defect formation were also used for autogeneous bone graft. They were grafted into the defects in a various type; block type (Group 1), particulated type by the bone mill (Group 2), chopped type by curette shaped Piezosurgery tip (Group 3), the defect without any graft was served as control (control group). The animals were sacrificed after 6 weeks and bone regeneration capacity was evaluated histomorphometrically.

Result & Conclusion: Autogeneous bone graft harvested using a Piezosurgery instrument showed satisfactory bone regeneration. There was no conspicuous difference bone prepared amomg by bone mill or Piezosurgery and block bone graft. Therefore, the bone harvested from the intraoral site near the operation field using the piezosurgery device can be a feasible and reliable graft for intraoral bony defects.