常州地区人群上颌窦内提升中的窦底骨性分隔的锥形束CT研究

Cone-beam CT study of bone septa during maxillary sinus lift among Changzhou population

目的 :研究常州地区人群上颌窦底骨性分隔的发生率、部位和形态学特点,探讨上颌后牙缺失与骨性分隔的关系,以及对上颌窦内提升手术的指导意义。方法:选择124例研究对象,于术前拍摄锥形束CT(CBCT)并生成相关数据,以NNT软件测量,获取上颌窦底骨分隔的数据,利用SPSS13.0软件包对数据进行统计学分析。结果:124例患者中,42例(33.87%)存在上颌窦骨性分隔;248个上颌窦中,68个存在骨性分隔(27.42%),其中45个骨性分隔出现于上颌窦中部(66.18%),15个出现在后部(22.06%),8个出现在前部(11.76%)。窦分隔的发生与性别、年龄及是否缺牙无关。结论:通过CBCT可以观察到上颌窦底骨性分隔的位置、形态,最大限度地预判手术的难易程度,提高上颌窦内提升术的成功率。

PURPOSE： To observe the incidence, location, morphological characteristics of sinus septa among Changzhou population, and to investigate the relationship between maxillary posterior teeth loss and bony septum, and the guiding significance for sinus lift. METHODS： One hundred and twenty-four subjects were selected, the preoperative cone-beam CT （CBCT） data was analyzed by NNT software, which provided a three-dimensional measurement of the maxillary sinus septa. SPSS 13.0 software package was used for statistical analysis. RESULTS： 33.87%（42/124）subjects had sinus septa, 27.42%（68/248）sinus had septa. 66.18% （45/68） of the septa were located in the middle region, 22.06% （15/68）in the posterior region, 11.76%（8/68） in the anterior region. The occurrence of sinus septa had no relation with gender, age and loss of teeth. CONCLUSIONS： The sinus septa can be observed by CBCT for the position, pattern, to predict the difficulty of the surgery, and enhance the success rate.