【摘要】 目的:介绍经牙槽嵴顶进路行上颌窦底骨切开提升术,并同期植入牙种植体的方法与疗效。方法:对31例上颌后牙牙槽骨剩余高度5～10mm(平均高度7.1mm)的牙缺失者行上颌窦底骨切开提升术,同期植入牙种植体。术前摄X片测定牙槽骨高度,提升高度1～2mm者,仅植入种植体,提升高度超过3mm者,窦底放置Bio-Oss人工骨。结果:共植入40枚牙种植体,窦底提升1～2mm5枚,超过3mm者35枚,窦底平均提升3.70mm。分别植入Frialit-2种植体10枚,Xive种植体8枚,ITI种植体22枚。术后无术区感染和上颌窦炎症。X线片示种植体处窦底骨板呈半球状隆起,半年后见种植体与骨结合满意。结论:⑴经牙槽嵴顶行上颌窦底骨切开提升,可同期植入牙种植体,手术操作简便,创伤小。⑵牙槽骨剩余高度5～10mm为窦底骨切开提升术的适应症。⑶窦底提升2mm以内者无需植入骨替代材料,术后4月可行义齿修复;提升3～6mm时需放置植入物,义齿修复应延迟在术后6～8月进行。更多还原

【Abstract】 Objective: To introduce clinical application of osteotomy elevation of maxillar sinus floor via alveolar ridge approach and simultaneous dental implantation. Methods: Osteomy elevation of maxillar sinus floor was completed in 31 cases from May of 2004 to December of 2006. Totally 40 dental implants were placed simultaneously. The remained maxillar alveolar height were measured precisely by X-ray films before operation for every cases. In these cases whose sinus lifting height was less than 2mm, no any grafts were placed to sinus floor except implants. And in those whose sinus lifting height was 3~6mm, Bio-Oss artificial bone were filled into sinus floor before dental implantation. Dental prosthesis was carried on after 4~6 months. Results: The average sinus floor lifting height of 40 implants was 3.70mm, 5 implants less than 2 mm and 25 implants long for 3~6mm. Of 40 implants, 10 are Frialit-2 (L10~13/D3.8~5.5), 8 Xive (L11~13/D3.8~5.5), and 22 ITI (L10~14/3.3～4.8). No any infection and sinus inflammation appeared. A cap-like or semi-ball-like sinus floor elevation was clearly seen in X-ray films post-operation in most of cases. After 6 months, satisfactory osseo-integration and beautiful sinus floor lifting configuration were observed. Conclusions: Oeteotomy elevation of sinus floor is a preferable choice for both doctors and patients because easy procedure and minimal invasion. Actual height of sinus floor should be measured precisely from X-ray film to decide the height of sinus elevation and length of the implants placed. The height elevated should not be over half of the length of the implant used. Grafts filling into sinus floor is not necessary in case sinus floor lifting only less than 2 mm, but is absolutely required in case more than 3 mm.更多还原