增加牙冠轴面突度对牙周组织的影响  

Effects of Change of Crown Contour on Health of Gingival

作　　者：秦殿红[1] 张志纯[1] 

机构地区：[1]锦州医学院附属第二医院口腔种植科,辽宁锦州121000

出　　处：《锦州医学院学报》2004年第6期16-18,共3页Journal of Jinzhou Medical College

摘　　要：目的　通过测量龈沟液 (GCF)的量 ,以及龈沟液中碱性磷酸酶 (ALP)和天门冬氨酸氨基转移酶(AST)的水平 ,研究不同程度增加人牙冠轴面突度对牙周组织健康的影响。方法　将下颌牙冠颊面分别用瓷贴面增加 0 2mm、 0 4mm和 0 8mm ,于粘贴前及粘贴后 1周、 4周和 8周时分别测量GCF ,ALP及AST水平。结果　牙冠轴面突度增加 0 2mm ,各指标没有明显变化 ;增加 0 4mm ,AST水平明显增加 ;增加 0 8mm ,GCF、ALP、AST水平增加显著。结论　牙冠轴面突度增加将影响牙周组织健康 ,并且增加越大牙周健康受到的损害程度越大。Objective To study the effects of differently increasing crown contours on the health of periodontium.Methods A total of 72 mandibular teeth of 12 volunteers were randomly divided into three groups,each group consisting of 21 teeth.The buccal surfaces of the teeth were excessively contoured 0.2mm,0.4mm and 0.8mm respectively.At the point of preoperation and the point of 1 week,4 weeks and 8 weeks after operation,gingival cervical fluid (GCF)were collected and weighed.Also the levels of alkaline phosphatase(ALP) and aspartate aminotransferase(AST) of GCF were tested.Results The most amount of GCF and highest level of ALP and AST, were presented in the 0.8mm than both in the 0.4mm and in the 0.2mm.The 0.4mm group was the second.However in the 0.2mm group,all indexes showed no statistically significant change.Conclusions Excessive crown contour is unfavourable to periodontium health.The more excessively contoured,the more damaged to the periodontium.

关 键 词：牙冠突度 龈沟液 碱性磷酸酶 天门冬氨酸氨基转移酶 

分 类 号：R783.3[医药卫生—口腔医学]