作　　者： (宋雪娟）; (王虎）; (刘媛媛）; (何双双）; (代佳琪）;

机构地区： 四川大学华西口腔医院放射科,四川成都610041

出　　处： 《临床口腔医学杂志》 2017年第8期463-466,共4页

摘　　要： 目的:探讨口腔颌面部骨岛在锥形束CT(Cone beam CT,CBCT)的影像特点。方法:回顾性总结分析2016年3月8日~2016年4月30日在四川大学华西口腔医院放射科4271名患者CBCT影像资料,其男2005名,女2266名,年龄为8~80岁,平均年龄40.4岁。分析颌面部骨岛发生率、分布规律与年龄、性别和部位的关系,并对骨岛进行简单分类。结果:4271名患者CBCT片中有387例患者发现骨岛492个,总发生率9.1%,其中女238名,男149名,两者颌骨骨岛发生率不同,女性(10.5%)高于男性(7.4%),差异有统计学意义(P<0.05)。各年龄组颌骨骨岛发生率不同,10~29岁年龄段人群颌骨骨岛发生率最高。骨岛好发于下颌前磨牙区和磨牙区,下颌骨岛所占比例约为上颌的3倍,而上颌骨岛好发于前磨牙区。骨岛与牙齿及硬骨板的位置关系以根尖型最为常见,其次是完全孤立型,孤立根间型最少见。中央硬化型颌骨骨岛较内生骨疣型在CBCT中更为常见,内生骨疣型和中央硬化型均有均质型和非均质型,均质型最为常见。结论:CBCT能较全面的反映骨岛的三维形态及其与周围结构(尤其是根尖)的关系,对于全景片上较难发现的骨岛以及上颌骨岛的检出率优势突出。 Objective：To determine the prevalence and distribution of idiopathic osteosclerosis（IO） in the jaw by computed tomograhic evaluation by cone-beam computed tomography（CBCT）.Methods：Computed tomographs of 4271 patients,2005 males and 2266 females with different dental complaints and ages were examined for the presence of IO in the jaw bones.Results：A total of 492 radioopacities were detected,and 387 patients（238 females and 149 males） of 4271 patients（9.1%） were with IO.The prevalence between female and male was significant diffferent（P〈0.05）.Prevalences of IO in all decades were inconsistent.Among all the patients,the highest prevalence was in the 30-49 ages.The number of IO were three times in the mandible than in the maxillary.In addition,premolar and molar localization were the most common regions in the mandible,while in the maxillary,premolar localization were the most common.There were almost two times higher ratio of the type of entral sclerosis（66.5%） than enostosis（33.5%）.Conclusion：The three-dimensional configuartion and the relationship with adjacent structures of idiopathic osteosclerosis could be portrayed comprehensively by using CBCT which has an obvious advantage in detecting IO in the maxillary.

关 键 词： 特发性骨硬化症 骨岛 发生特点 分布规律 锥形束