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(1)

Ⅰ. 서

현재까지 골 결손부를 재건하기 위한 골 이식 재료로 가장 널리 사용되고 있는 것은 자가골이며1-2)

,자가골은 다른 종류의

골 이식 재료와 달리 골 형성 기전에 의해 치유되며 면역학적 반응이 문제되지 않는 장점을 가지고 있다. 악골의 큰 골 결손 부는 주로 장골 이식에 의해 수복되며, 이 경우 골 채취를 위한

부가적 수술이 요구되는 단점을 가지고 있다3)

. 작은 골 결손부

일 경우에는 부가적인 수술이 필요 없어 주변에서 손쉽게 자 가골을 채취하여 이식하게 되므로 수술 시간을 절약할 수 있 고 환자의 불편감을 감소시킬 수 있다. 악골과 같은 막성골 형 태(intramembranous bone type)의 경우 늑골, 경골, 장골 등과 같 은 구강외 공여부에 해당하는 연골내화성 골 형태(endochondri-

al bone type)보다 치유 기간을 줄일 수 있으며, 이식 후 흡수율

이 적고 많은 양의 망상골(cancellous bone)을 이용할 수 있어 빠 른 골 형성과 재혈관화를 촉진할 수 있다는 장점을 지니고 있 다4-5)

.

지금까지 악골로 부터 자가골을 채취하기 위한 다양한 기구 가 소개되었는데, 그중

1998년 Tomaso Vercellotti에 의해 개발된 Piezosurgery가 새롭게 각광을 받고 있다

6-10)

. Piezosurgery는 일반

초음파에 비해

3배정도의 강한 힘을 가지고 있으며, 25kHz에

대구외지 2008;34:428-434

Abstract (J. Kor. Oral Maxillofac. Surg. 2008;34:428-434)

권 대 근

700-721 대구광역시 중구 삼덕250 경북대학교 치과대학 구강악안면외과학교실 Tae-Geon Kwon

Dept. of OMFS, School of Dentistry, Kyungpook National University 50 Samduk 2-ga, Jung-gu, Daegu, 700-721, Korea

Tel: 82-53-420-5911,5912 Fax: 82-53-426-5365 E-mail: [email protected]

428

가토 두개골에 이식한 다양한 형태의 자가골에 의한 골성 회복 양상 비교 평가

최소영∙이수연∙김진욱∙김진수∙이상한∙신홍인*∙권대근

경북대학교 치과대학 구강악안면외과학교실, *경조직-바이오치아 재생 연구소, 구강병리학교실

A COMPARATIVE STUDY OF VARIOUS TYPE OF AUTOGENEOUS BONE GRAFT ON THE RABBIT-SKULL DEFECT HEALING

So-Young Choi, Su-Youn Lee, Jin-Wook Kim, Chin-Soo Kim, Sang-Han Lee, Hong-In Shin

*

, Tae-Geon Kwon

Dept. of Oral & Maxillofacial Surgery, *IHBR, Dept. of Oral Pathology, School of Dentistry, Kyungpook National University, Kyungpook National University

Introduction: Piezosurgery device is one of the most commonly used instrument on the intraoral surgery such as maxillary sinus lift and autoge- neous bone graft. Piezosurgery instrument also contains the tips that are manufactured especially for the convenient bone graft, which now many sur- geons 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.

Key words: Autogeneous bone graft, Skull defects of the rabbits, Piezosursery device

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관련 문서

4 Department of Clinical Pathology, School of Medicine, Kyungpook National University, Daegu, Korea. We apologize for any inconvenience that this may

1 Department of Prosthodontics, Seoul National University Dental Hospital, School of Dentistry, Seoul National University, Seoul, Republic of Korea.. 2 Department of

3 Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, School of Dentistry, Seoul National University, Seongnam, 4

Departments of 1 Oral and Maxillofacial Surgery, 2 Orthodontics, School of Dentistry, Pusan National University,.. 3 Dental Hospital, Pusan National University,

1 Departments of Oral and Maxillofacial Surgery and 2 Prosthodontics, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, 3 School of Dentistry,

Jung-Tae Lee 1 *, Jae-Hwan Jeong 2 *, Je-Yong Choi 2 , Tae-Geon Kwon 1 1 Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University,.

Ik-Jun Chang, Association between denture satisfaction and perceived oral health among the elderly with removable denture, Department of Dentistry Graduate

간질환별 빈도는 두 공존예에서 모두 만성간염과 간암이 가장 높은 빈도를 차지 하였다.. of Clinical Pathology, Kyungpook National University Hospital