排龈线预防牙体楔状缺损充填修复后出现悬突与炎症的临床研究  

Gingival retraction cord to prevent suspension and inflammation after filling wedge-shaped defect repair of gum tooth caries

作　　者：王亚红[1] 

机构地区：[1]蒙城县第二人民医院口腔科,安徽蒙城233500

出　　处：《新乡医学院学报》2014年第7期572-574,共3页Journal of Xinxiang Medical University

摘　　要：目的探讨排龈线预防牙体楔状缺损充填修复后出现悬突与炎症的效果。方法选择牙体楔状缺损于龈下的患者112例,每位患者选择患牙2颗共224颗,分为观察组和对照组。观察组患者应用排龈线法对缺损排龈后充填复合树脂;对照组患者常规处理后直接充填复合树脂。比较2组患者充填前和充填后1、3、6个月充填体颊侧龈沟液中天冬氨酸转氨酶(AST)水平的变化,并观察2组患者牙体楔状缺损充填的保留率和悬突发生率。结果 2组患者牙体楔状缺损充填前AST水平比较差异无统计学意义(P>0.05)。充填后1、3、6个月,2组患者充填体颊侧龈沟液AST水平均较充填前明显升高,差异有统计学意义(P<0.01);但观察组患者AST水平均低于对照组,差异有统计学意义(P<0.05)。观察组患者楔状缺损充填体保留率明显高于对照组,悬突的发生率明显低于对照组,差异有统计学意义(P<0.05)。结论排龈线技术可以有效降低牙体楔状缺损充填修复后悬突和牙周组织炎症的发生,延长充填体的保留时间。Objective To explore the effect of gingival retraction cord in preventing suspension and inflammation after filling wedge-shaped defect repair of gum tooth caries.Methods One hundred and twelve patients with wedge-shaped defect of gum tooth caries were selected,two teeth with gum tooth caries of each patient was chose,and a total of 224 teeth were rolled in this study,they were divided into observation group and control group.The observation group was used gingival retraction cord method for defect after gum using composite resin filling; the control group was given routine treatment after direct composite resin filling.The level of aspartate aminotransferase（AST） in gingival crevicular fluid in the region between bucca and sulcus auriculae posterior of obturator was compared before filling and 1 month,3,6 months after filling.The rate of obturator tention and incidence rate of suspension were compared between the two groups.Results There was no statistically significant difference in AST level between the two groups before filling（P 〉0.05）.The AST level of the two groups 1 month,3,6 months after filling was higher than before filling,there was statistical significant difference（P 〈0.01）.But the AST levels of observation group 1 month,3,6 months after filling were lower than those of control group,there were statistical significant differences（P 〈0.01）.The rate of obturator tention in observation group was higher than that in control group,while the incidence rate of suspension was lower than that in control group,there was statistical significant difference（P 〈0.01）.Conclusion Gingival retraction cord method can decrease the incidence rate of suspension and inflammation of periodontium,and extend the retention time of obturator.

关 键 词：排龈线 龈下牙体龋损 楔状缺损充填 悬突 炎症 

分 类 号：R782.1[医药卫生—口腔医学]