3种可流动材料充填人离体牙Ⅴ类洞模型后微渗漏发生情况及影响因素  

Occurrence and influence factors of microleakage in classⅤcavities filled with three different flowing materials in vitro

作　　者：耿文韬[1,2] 谢金芳 张颖丽[1] 刘霞[1] 尹硕[3] GENG Wentao;XIE Jinfang;ZHANG Yingli;LIU Xia;YIN Shuo(Department of Oral Comprehensive Treatment,Stomatology Hospital,Jilin University,Changchun 130021,China;Department of Stomatology,No 904 Hospital,Joint Logistic Support Force,People’s Liberation Army,Wuxi 214000,China;Department of Prosthodontics,Changchun Dental Hospital,Jilin Province,Changchun 130041,China)

机构地区：[1]吉林大学口腔医院综合口腔治疗科,吉林长春130021 [2]中国人民解放军联勤保障部队第904医院口腔科,江苏无锡214000 [3]吉林省长春市口腔医院修复科,吉林长春130041

出　　处：《吉林大学学报（医学版）》2022年第1期59-64,共6页Journal of Jilin University：Medicine Edition

基　　金：吉林省教育厅“十三五”科学技术项目(JJKH20190093KJ);吉林省财政厅科研项目(JCSZ2019378-9)。

摘　　要：目的:比较Z350XT流动树脂、Beautifil Flow Plus F00和PRG Barrier Coat3种可流动充填材料在体外模拟充填人离体牙Ⅴ类洞后微渗漏发生的程度以及唾液污染的影响,筛选适用于临床充填楔状缺损的材料。方法:选取42颗正畸需要拔除的下颌第一前磨牙,24颗离体牙用于无唾液污染条件下实验,随机分为4组,每组6颗,分别为Z350XT流动树脂组、Beautifil Flow Plus F00组、PRG Barrier Coat组和玻璃离子水门汀(GIC)组;18颗离体牙用于有唾液污染条件下实验,随机分为3组,每组6颗,分别为Z350XT流动树脂组、Beautifil Flow Plus F00组和PRG Barrier Coat组。无唾液污染条件下实验各组离体牙在离体牙颈部预备Ⅴ类洞型,充填相对应的材料;有唾液污染条件下实验各组离体牙在涂布粘结剂后置于人工唾液中,再充填相对应的材料。各组离体牙样本经冷热循环后,自凝塑料封闭根尖孔,亚甲基蓝染色,制作切片,体视显微镜观察和测量离体牙染料染色深度即微渗漏程度,计算微渗漏程度评分。结果:在无唾液污染条件下,GIC组微渗漏程度及微渗漏程度评分高于其他各组(P<0.05),PRG Barrier Coat组微渗漏程度及微渗漏程度评分高于Z350XT流动树脂组和Beautifil Flow Plus F00组(P<0.05),各材料组龈壁微渗漏程度及微渗漏程度评分均高于同种材料组壁的微渗漏程度及微渗漏程度评分(P<0.05)。有唾液污染条件下各组材料微渗漏程度和微渗漏程度评分比较差异无统计学意义(P>0.05),但均高于无唾液污染条件下同种材料组的微渗漏程度及微渗漏程度评分(P<0.05)。结论:Z350XT流动树脂和Beautifil Flow Plus F00比PRG Barrier Coat更适用于楔状缺损的充填,值得在临床广泛推广应用,防止唾液污染对减少微渗漏至关重要。Object:To compare the degrees of occurrence of microleakage of classⅤcavities of the isolated teeth filled with three flowing materials Z350XT flowing resin,Beautifil Flow Plus F00 and PRG Barrier Coat and the influence of saliva,and to select the suitable materials for wedge-shape defects.Methods:A total of 42 isolated first premolars were selected,and 24 isolated teeth were used in the experiment without saliva and were randomly divided into 4 groups:Z350XT flowing resin,Beautifil Flow Plus F00,PRG Barrier Coat and glass ionomer cement(GIC)(n=6).A total of 18 isolated first premolars were used in the experiment with saliva and were randomly divided into 3 groups:Z350XT flowing resin,Beautifil Flow Plus F00 and PRG Barrier Coat(n=6).The classⅤcavity was made on the facial surface of each isolated tooth in the experiment without saliva and was filled with the corespondent materials.The samples in the experiment with saliva were soaked in artificial saliva after coated with 3M single bond universal adhesive,and then were filled with the correspondent materials.After thermocycling,the apical foramens were closed with plastomer and the samples were stained with methylene blue solution.The sections were made.The dye depths,namely microleakage degrees,of the isolated tooth in each group were observed and measured under stereoscopic microscope,and the microleakage degree scores were calculated.Results:In the experiment without saliva,the microleakage degree and the microleakage score in GIC group were higher than those of the other groups without saliva(P<0.05);the microleakage degree and the microleakage degree score in PRG Barrier Coat group were higher than those in 350XT flowing resin group and Beautifil Flow Plus F00 group(P<0.05);the microleakage degrees and the microleakage degree scores in gingival walls in various groups were higher than those of occlusal walls of the same material(P<0.05).In the experiment with saliva,there were no differences in the microleakage eakage degrees and the microleakage degree

关 键 词：可流动材料 Ⅴ类洞 微渗漏 Z350XT流动树脂 Beautifil Flow Plus F00 PRG Barrier Coat 

分 类 号：R783.1[医药卫生—口腔医学]