摘要
收集典型病例 ,观察年龄、牙位、牙髓状况、充填洞型、咬合等与牙折裂的关系 .按斜折、纵折、横折、粉碎折四型对牙折进行分类 .研究发现 :后牙折裂年龄集中在 30～ 6 0岁 ,上下颌第一磨牙折裂率最高 .折裂与牙髓状况、充填、咬合有关 ,各型牙折以Ⅰ类B型和Ⅱ类B型牙折率较高 .死髓牙、严重磨耗牙、Ⅱ类洞充填的牙要特别注意防止其发生牙折 。
To prevent and treat the posterior tooth fracture, the authors collected typical cases and used them to detect the relationship among the age, tooth position, pulp condition, filling cavity form and occlusion to the posterior tooth fracture,. and classified the posterior tooth fracture into inclined, vertical, horizontal and smashing fractures. The result shows that patients between the ages of 30～60 were apt to such fractures. And they most often happened to the first molars between the upper and lower jaws . Tooth fracture was somewhat related to pulp condition, filled cavity form and occlusion. Among all the types of the tooth fracture, Type A, ClassⅠand Type B, ClassⅡmore frequently occurred than others. We therefore, reach a conclusion that it is very necessary to prevent the tooth fracture of pulpless tooth,serious attrition tooth and filled tooth of Class Ⅱcavity and fractured tooth should be treated according to the fracture type.
出处
《湖州师范学院学报》
2004年第2期95-97,共3页
Journal of Huzhou University
关键词
后牙
牙折裂
分类
posterior tooth
tooth fracture
classification
