原花青素对不同深度牙本质粘接耐久性的影响

doi:10.13701/j.cnki.kqyxyj.2020.04.016

口腔医学研究 ›› 2020, Vol. 36 ›› Issue (4): 372-376.DOI: 10.13701/j.cnki.kqyxyj.2020.04.016

原花青素对不同深度牙本质粘接耐久性的影响

刘雯^1,2, 刘敏^1,2, 邓婷^1,2, 王雯^1,2, 郑月梅^1,2, 郭玲^1,2, 谢翠柳^1,2*

1.西南医科大学附属口腔医院口腔修复科四川泸州 646000;
2.西南医科大学口颌面修复重建与再生实验室四川泸州 646000

收稿日期:2019-09-18 出版日期:2020-05-28 发布日期:2020-05-28
通讯作者: 谢翠柳,E-mail:xiecl10@163.com
作者简介:刘雯(1995~ ),女,四川资阳人,硕士在读,主要从事口腔修复方向研究工作。
基金资助:
西南医科大学附属口腔医院青年项目(编号:201806)

Effect of Proanthocyanidins on Durability of Dentin Bonding at Different Dentin Depths

LIU Wen^1,2, LIU Min^1,2, DENG Ting^1,2, WANG Wen^1,2, ZHENG Yuemei^1,2, GUO Lin^1,2, XIE Cuiliu^1,2*

1. Department of Prosthodontics, the Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China;
2. Oral & Maxillofacial Reconstruction and Regeneration Laboratory, Southwest Medical University, Luzhou 646000, China

Received:2019-09-18 Online:2020-05-28 Published:2020-05-28

摘要/Abstract

摘要： 目的: 探讨原花青素(Proanthocyanidins, PA)对不同深度牙本质粘接耐久性的影响。方法: 将40颗第三磨牙随机分为8组(n=5):A、A1组:浅层+6.5% PA;B、B1组:浅层+乙醇;C、C1组:深层+6.5% PA;D、D1组:深层+乙醇。A1、B1、C1、D1组样本进行老化处理。各组试件测试抗剪切强度后统计断裂模式,并在扫描电镜下观察断裂面。结果: “老化”、“牙本质深度”、“PA”的单独主效应均具有统计学意义(P<0.05),但其二阶、三阶交互效应均不具有统计学意义。混合断裂是主要的断裂模式。A1、C1组见粗大的树脂突严密充填于牙本质小管中,B1、D1组出现牙本质小管及树脂溶解现象。结论: PA可增强浅、深层牙本质即刻抗剪切强度并改善粘接耐久性,牙本质浅层抗剪切强度高于深层。

关键词: 原花青素, 牙本质深度, 抗剪切强度, 粘接耐久性

Abstract: Objective: To investigate the effect of proanthocyanidins on the durability of dentin bonding at different dentin depths. Methods: 40 third molars were randomly divided into 8 groups (n=5): group A and A1: shallow + 6.5% PA; group B and B1: shallow + ethanol; group C and C1: deep + 6.5% PA; group D and D1: deep + ethanol. Specimens of groups A1, B1, C1 and D1 were conducted aging test. The shear bond strength of all specimens was tested. The fracture mode was counted and the fracture surface morphology was observed under scanning electron microscope. Results: The main effect of "aging", "dentin depth", and "PA" was statistically significance (P<0.05), and the second-order and third-order interaction effects had no statistically significance. The main fracture mode of all groups was mixed fracture. The resin tags of group A1 and C1 were closely filled in dentine tubules, while the dentine tubules and resin of group B1 and D1 appeared to be dissolved. Conclusion: PA can enhance the immediate shear bond strength of dentin and improve the bonding durability. The shear bond strength of deep dentin is lower than that of superficial dentin

Key words: proanthocyanidins, dentin depth, shear bond strength, bonding durability

刘雯, 刘敏, 邓婷, 王雯, 郑月梅, 郭玲, 谢翠柳. 原花青素对不同深度牙本质粘接耐久性的影响[J]. 口腔医学研究, 2020, 36(4): 372-376.

LIU Wen, LIU Min, DENG Ting, WANG Wen, ZHENG Yuemei, GUO Lin, XIE Cuiliu. Effect of Proanthocyanidins on Durability of Dentin Bonding at Different Dentin Depths[J]. Journal of Oral Science Research, 2020, 36(4): 372-376.

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原花青素对不同深度牙本质粘接耐久性的影响

Effect of Proanthocyanidins on Durability of Dentin Bonding at Different Dentin Depths

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