两种止血剂对乳牙牙本质全酸蚀及自酸蚀粘接效果的影响  

Effect of two hemostatic agents on the bonding strength of total-etch and self-etch adhesive systems in primary tooth dentin

作　　者：高也 吕学超[1] 高雪峰 刘宇昊 刘英群[1] GAO Ye;LV Xuechao;GAO Xuefeng;LIU Yuhao;LIU Yingqun(Department of Pediatrics,the First Affiliated Hospital of Harbin Medical University,Affiliated Stomatological Hospital of Harbin Medical University,Harbin 150000,China)

机构地区：[1]哈尔滨医科大学附属第一医院,哈尔滨医科大学附属口腔医学院儿童口腔科,黑龙江哈尔滨150000

出　　处：《口腔疾病防治》2021年第9期591-595,共5页Journal of Prevention and Treatment for Stomatological Diseases

基　　金：黑龙江省博士后资助经费(LBH-Z15172)。

摘　　要：目的探讨两种止血剂对不同粘接系统下乳牙牙本质粘接效果的影响。方法选取72颗滞留乳磨牙,其中48颗用于构建微渗漏模型,另外24颗沿近远中切开后得48个样本,构建剪切粘接强度实验模型。两实验模型均分为A、B 2组,A组即全酸蚀组:A1组(Visco Stat止血剂+NT全酸蚀粘接剂)、A2组(Visco Stat Clear止血剂+NT全酸蚀粘接剂)、A3组(无止血剂+NT全酸蚀粘接剂);B组即自酸蚀组:B1组(Visco Stat止血剂+3M通用型粘接剂)、B2组(Visco Stat Clear止血剂+3M通用型粘接剂)、B3组(无止血剂+3M通用型粘接剂)。分别进行微渗漏实验和剪切粘接强度实验,扫描电镜观察断裂面形态。结果 A1、A2、A3 3组微渗漏差异无统计学意义(P> 0.05)。B1、B2、B3 3组微渗漏差异无统计学意义(P> 0.05)。A1、A2、A3组剪切粘接强度值比较差异无统计学意义(P> 0.05),B1和B2组剪切粘接强度值显著低于B3组(P <0.05),B1和B2组间差异无统计学意义(P> 0.05)。结论 Visco Stat止血剂和Visco Stat Clear止血剂对不同粘接系统下乳牙牙本质的边缘封闭性无影响。两种止血剂会明显降低自酸蚀粘接剂对乳牙牙本质的剪切粘接强度,对全酸蚀粘接剂的剪切粘接强度无影响。Objective To explore the effects of two hemostatic agents on the bonding strength of different bonding systems in primary tooth dentin.MethodsSeventy-two retained deciduous teeth were randomly selected.Forty-eight teeth were used to construct the microleakage model,the other 24 teeth were cut along the mesial and distal directions and 48 samples were obtained to construct the shear bond strength model.The two experiments were divided into 2groups.Group A was the total-etch group:A1(Visco Stat+Spectrum Bond NT);A2(Visco Stat Clear+Spectrum Bond NT);and A3(Non+Spectrum Bond NT);Group B was the self-etch group:B1(Visco Stat+Single bond Universal Adhesive);B2(Visco Stat Clear+Single bond Universal Adhesive);and B3(Non+Single bond Universal Adhesive).Microleakage experiments and shear bond strength experiments were carried out respectively and the morphology of the fracture surface was observed by scanning electron microscopy.ResultsThere was no significant difference in microleakage among groups A1,A2,and A3(P>0.05).There was no significant difference in microleakage among groups B1,B2,and B3(P>0.05).There was no significant difference in the shear bond strength among groups A1,A2 and A3(P>0.05).The shear bond strength of groups B1 and B2 was significantly lower than that of group B3(P<0.05).There was no significant difference between groups B1 and B2(P>0.05).ConclusionVisco Stat and Visco Stat Clear had no effect on the marginal integrity of deciduous tooth dentin under the different bonding systems.The two hemostatic agents reduced the shear bonding strength of deciduous tooth dentin under the self-etch adhesive system,but had no effect on the shear bonding strength of deciduous tooth dentin under the total-etch adhesive system.

关 键 词：止血剂 乳牙牙本质 全酸蚀粘接系统 自酸蚀粘接系统 氯化铝 硫酸铁 粘接强度 微渗漏 

分 类 号：R78[医药卫生—口腔医学]