CBCT分析上颌后牙根折对上颌窦底黏膜的影响

应用锥形束CT(CBCT)分析上颌后牙根折对上颌窦黏膜的影响,并对上颌窦黏膜炎症反应进行相关性研究.随机选取经CBCT扫描并诊断为一侧根折另一侧无症状的患者50例为实验组,对窦底黏膜厚度,根尖到上颌窦底的距离进行测量,并对数据进行统计学分析.实验组患者根折侧上颌窦黏膜存在增厚改变的发生率为88％,对照侧为2％,差异有统计学意义(P＜0.05).在实验组中,根折伴根尖周炎组、根折伴牙周炎组、无其他症状根折组的黏膜厚度,差异无统计学意义.根折患者上颌窦底黏膜容易发生增厚样改变.根折后常伴有根尖周炎、牙周炎等症状,但不同临床症状对上颌窦黏膜厚度影响无差异性.根折牙根距上颌窦底越近,可能更容易对上颌窦黏膜产生影响.

Influence of root fracture on the schneiderian mucosa of maxillary sinus subjects using CBCT

To analyze the changes of the schneiderian mucosa of maxillary sinus in the root fracture subjects using cone-beam(CBCT) and analyze the correlation of the inflammation between the root fracture and the schneiderian mucosa.50 root fracture subjects were selected and scanned by CBCT.Measuring the bottom of the sinus mucosa'thickness and the distance from root to the bottom of the maxillary sinus.All data were analyzed using statistical package SPSS18.0.The incidence rate of the mucosa thickening in the test group was 88％ and the compare group was 2％,the difference was statistically significant(P ＜ 0.05).The root fracture with apical periodontitis,the root fracture with periodontitis and the root fracture with asymptomatic had no difference among three groups.The changes of mucosal thickening were obviously found in the root fracture subjects.The closer the root of the root is from the maxillary sinus floor,it may be more likely to have an effect on the maxillary sinus mucosa