CAJ | 학술논문

目的观察、评价环形植骨种植修复的临床特点和远期效果.方法选择牙槽骨吸收严重、不能行满意种植修复患者16例(30个牙位),按照设计要求,应用德国环形取骨钻自下颌正中联合及下颌升支部切割并切取移植骨,取骨前于待取骨中央行穿透性打孔制备环形骨块,将骨块取下并垂直植入受植区,将种植体插入环形骨块中心并植入牙槽骨内,种植体颈部与环形骨块皮质严密接触,使用Bio-Oss骨粉并覆盖Bio-Gide膜.取骨、植骨,种植手术一次完成.4～6个月后暴露种植体,连接基台并戴入临时修复体.结果 16例(30个牙位)环形骨块+种植体,Ⅰ期愈合28个牙位；骨块植入后发生感染2个牙位,骨块一定程度吸收,治疗后好转；其余骨块移植后吸收不明显,无种植体脱落,植骨后牙槽骨高度平均增加4.12 mm,宽度平均增加3.27 mm.结论环形植骨技术能有效修复种植术区骨量不足,取骨、植骨和种植一次性完成,缩短手术至冠修复的期间造成的植骨吸收,是临床实用的骨三维缺损的植骨方法.
목적 관찰、평개배형식골충식수복적림상특점화원기효과.방법 선택아조골흡수엄중、불능행만의충식수복환자16례(30개아위),안조설계요구,응용덕국배형취골찬자하합정중연합급하합승지부절할병절취이식골,취골전우대취골중앙행천투성타공제비배형골괴,장골괴취하병수직식입수식구,장충식체삽입배형골괴중심병식입아조골내,충식체경부여배형골괴피질엄밀접촉,사용Bio-Oss골분병복개Bio-Gide막.취골、식골,충식수술일차완성.4～6개월후폭로충식체,련접기태병대입림시수복체.결과 16례(30개아위)배형골괴+충식체,Ⅰ기유합28개아위；골괴식입후발생감염2개아위,골괴일정정도흡수,치료후호전；기여골괴이식후흡수불명현,무충식체탈락,식골후아조골고도평균증가4.12 mm,관도평균증가3.27 mm.결론 배형식골기술능유효수복충식술구골량불족,취골、식골화충식일차성완성,축단수술지관수복적기간조성적식골흡수,시림상실용적골삼유결손적식골방법.
Objective To evaluate the clinical effects of the bone-ring augmentation in implant restoration using the bone ring technique.Methods Sixteen patients (30 teeth) with severe alveolar bone absorption were selected.Bone rings (circular osteotomies) were outlined at the symphysis area and a central osteotomy for implant placement was done using the bone ring drills before its removal.The rings were then removed and sculptured to fit the alveolar ridge and then covered by Bio-oss and Bio-Gide membrane.This was followed by screwing the implant through the ring,gaining its primary stability from the prepared basal bone.After 4-6 months,the implant was exposed and abutment connected for temporary restoration.Results Of the 16 patients,14 cases were healed by first intention,2 cases were infected after the bone ring implantation resulting in some bone absorption but healed after bone grafting materials were placed at the second stage of the onlay procedure.The bone ring implantation showed no absorption and no implant failure.After the bone grafting the alveolar bone height increased by 4.1 mm on average and the thickness increased by 3.27 mm on average.Conclusions Implant bone ring can effectively augment the absorbed alveolar ridge.The procedure has the advantages of bone removal,grafting and implantation at one stage.