CAJ | 학술논문

目的探讨口内入路磨削法下颌缩小成形术的临床效果及操作要点.方法对598例采用口内入路磨削法下颌缩小成形术,磨削范围包括咬合线以下的升支后缘及下齿槽管外侧的下颌骨外板、下颌角、部分升支下部及颏孔后部分的下颌缘全层骨质.术前、术后摄取头颅定位正、侧位X线片和照片.结果磨削后下颌骨升支下部和体部缩窄,下颌角缩小并提升,外形改善明显,下颌角角度、下颌平面角、前颅底平面角、面下宽度均较术前明显改变(P＜0.01).术后随访168例,优良率为95.24%.结论口内入路磨削法下颌缩小成形术,可以在矫正下颌角肥大的同时去除部分下颌骨外侧皮质层,基本可以达到下颌角截骨术和骨外板劈除术的效果,且操作准确、简便易行.
목적 탐토구내입로마삭법하합축소성형술적림상효과급조작요점.방법 대598례채용구내입로마삭법하합축소성형술,마삭범위포괄교합선이하적승지후연급하치조관외측적하합골외판、하합각、부분승지하부급해공후부분적하합연전층골질.술전、술후섭취두로정위정、측위X선편화조편.결과 마삭후하합골승지하부화체부축착,하합각축소병제승,외형개선명현,하합각각도、하합평면각、전로저평면각、면하관도균교술전명현개변(P＜0.01).술후수방168례,우량솔위95.24%.결론 구내입로마삭법하합축소성형술,가이재교정하합각비대적동시거제부분하합골외측피질층,기본가이체도하합각절골술화골외판벽제술적효과,차조작준학、간편역행.
Objective To verify the clinical reliability of a simple abrasive method for reduction mandibular osteoplasty.Methods A total of 598 cases of reduction mandibular osteoplasty were performed by using the abrasive method since 2002.Through intraoral incisions,the low part of mandibular ramus,angle region,buucal cortice and inferior border of mandible were exposed and abrasive osteoplasty was taken with special designed retractors,rasp and grinding burs with protecting sheath.The inferior alveolar nerve could be preserved.Results There was no nerve injury and only one hemorrhage case during operation without unfavorable result.In 6 to 1～2 months follow-up for 168 cases,the satisfactory rate for contour results was 95.24%.Conclusion Through the intraoral approach,the abrasive mandibular reduction osteoplasty is a simple,safe and effective method for mandibular osteoplasty.It is not to correct the prominent mandibular angle but to reduce the thickness of the mandibular ramus and body.This method could contribute the same results of angle ostectomy and split cortical bone ostectomy and result a good contour of the jaw region.