解放军医学杂志2011，Vol.36Issue(9)：928-930,3.
利用上颌窦底壁骨嵴和骨突进行种植体植入的方法研究
Research on a method of embedding implants into crista and apophysis of sinus maxillaris
摘要
Abstract
Objective To study and evaluate the method of embedding implants into crista and apophysis of sinus maxillaris precisely and safely. Methods Eight patients with insufficient alveolar bone height in the posterior maxillary region, including 5 males and 3 females with mean age of 46.4± 12. 8 years, received dental implant surgery. By using CT scan based on 3D reconstruction analysis, each patient was chosen in accordance with the following criteria: sinus septa and apophysis located over the lost teeth, the width at the base of the septum and apophysis was over 5mm and the included angle between sinus floor and mesial or distal slope of the septum and apophysis was less than 70°. A simulation operation was done on each patient's rapid prototyping model and apical part of implants was set into sinus septum and apophysis. After surgical guide was fabricated, osteotomy preparation and implant placement were performed aided by the surgical guide, and then followed by immediate CT scan to thoroughly examine the relative position of implants to septum and apophysis and the integrity of the sinus membrane. Results The position of all the 8 implants was in consistent with that in the rapid prototyped model. Sinus floor was lifted to the mesial or distal surface of the septum or apophysis. One side of the implants' apical parts, with the length ranged from 2 to 5mm. Was tightly embedded to sinus septum or apophysis, and the other side of the implants was well covered by mucous membrane. The implants were found with good stability after the surgery. No damage or laceration of the sinus mucous membrane was observed. Conclusions Sinus septa and apophysis can provide the necessary height to maintain implant stability when the alveolar bone height is insufficient for the insertion of a dental implant in the posterior region. In order to precisely embed implants into sinus septum and apophysis, the following procedures are required and must strictly coordinate with one another: accurate positioning and measurement of septa and apophysis by using CT 3-dimensional reconstruction analysis and model surgery, guide aided implant placement surgery, and the use of Sinustech reamer to lift sinus floor.关键词
上颌窦/牙种植/骨嵴/骨突Key words
maxillary sinus/ dental implantation/ septa/ exostoses分类
医药卫生引用本文复制引用
孙振宇,刘慧,王道富,陈光,张明睿,冯颉..利用上颌窦底壁骨嵴和骨突进行种植体植入的方法研究[J].解放军医学杂志,2011,36(9):928-930,3.基金项目
首都医学发展科研基金(2009-3062) （2009-3062）
