口腔疾病防治2024，Vol.32Issue(6)：420-427,8.DOI:10.12016/j.issn.2096-1456.2024.06.003
诺丽对冠部牙本质粘接强度及纳米渗漏的影响
Effect of Morinda citrifolia juice on the bonding strength and nanoleakage of crowns dentin
周可莹 1李艳萍 1李海清 2何丽娜 1潘爽 1牛玉梅1
作者信息
- 1. 哈尔滨医科大学附属第一医院,哈尔滨医科大学口腔医学院,黑龙江 哈尔滨(150000)
- 2. 黑龙江省医院口腔医学中心,黑龙江 哈尔滨(150036)
- 折叠
摘要
Abstract
Objective To explore the effect of Morinda citrifolia juice(MCJ)combined with ethylene diamine tet-raacetic acid(EDTA)on premolar bonding strength and nanoleakage and compare the results with those of the most commonly used root canal irrigation solution,sodium hypochlorite(NaClO),to provide a reference for clinical applica-tion.Methods This study was approved by the ethics review committee.Sixty-three human premolars extracted for orthodontic treatment were randomly divided into a control group(distilled water group)and 6 experimental groups ac-cording to the different rinsing solutions used after the surface enamel was removed.The experimental groups included Group A(2.5%NaClO),Group B(5.25%NaClO),Group C(6%MCJ),Group D(2.5%NaClO-17%EDTA),Group E(5.25%NaClO-17%EDTA),and Group F(6%MCJ-17%EDTA)(n = 9).After soaking in the corresponding rinsing so-lution for 20 minutes,they were layered and stacked on their surfaces to form 4 mm×4 mm×3 mm Z350 resin blocks.Six samples from each group were cut into 1 mm×1 mm×8 mm specimen strips for microtensile bonding strength test-ing.The fracture type was determined under a stereomicroscope,and the remaining 3 samples from each group were aged and cut into 1 mm thick slices for interface nanoleakage testing and scanning electron microscopy observation of the resin dentin bonding interface.Results There were significant differences in the microtensile bonding strength among the groups(P＜0.05),and the control group had the highest bonding strength.Among experimental groups,Group B had the lowest bonding strength,mainly bonding interface fracture,and Group F had the highest bonding strength,mainly mixed fracture.There were significant differences in nanoleakage among all groups(P＜0.05),and the control group had the lowest nanoleakage value.Among experimental groups,Group B had the highest nanoleakage,with resin protrusions being unaltered,and Group F had the lowest nanoleakage value,with resin protrusions being thick and dense.Conclusion The higher the concentration of NaClO was,the worse the bonding strength and edge sealing of the crown dentin were.The effects of root canal irrigation with MCJ and EDTA on the adhesive strength and edge sealing of crown dentin were less pronounced than those of root canal irrigation with NaClO and EDTA.关键词
牙本质/诺丽/次氯酸钠/复合树脂/微拉伸粘接强度/纳米渗漏/粘接界面/场发射扫描电子显微镜Key words
dentin/Morinda citrifolia juice/sodium hypochlorite/composite resin/microtensile bond strength/nanoleakage/adhesive interface/scanning electron microscope分类
医药卫生引用本文复制引用
周可莹,李艳萍,李海清,何丽娜,潘爽,牛玉梅..诺丽对冠部牙本质粘接强度及纳米渗漏的影响[J].口腔疾病防治,2024,32(6):420-427,8.
