次氯酸钠残留对牙本质粘附的影响

IF 0.5 Q4 DENTISTRY, ORAL SURGERY & MEDICINE

Giornale Italiano di Endodonzia Pub Date : 2021-02-08 DOI:10.32067/GIE.2021.35.01.05

J. D. Bronzato, A. Corrêa, B. Gomes, C. C. Ferraz

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引用次数: 1

摘要

目的:本研究采用三步蚀刻-冲洗胶粘剂系统，评估了NaOCl在7天和14天后对树脂-牙本质结合强度的残余影响。方法:选取40块牛切牙冠牙本质，随机分为以下两组:G1组，0.9%生理盐水浸泡30分钟(对照组);G2, 5.25% NaOCl浸泡30分钟;G3, 5.25% NaOCl浸泡30分钟，保存7天;G4, 5.25% NaOCl浸泡30分钟，保存14天。修复后对牙本质/树脂界面进行微拉伸粘结强度测试，扫描电镜分析破坏模式。数据采用方差分析，随后采用Tukey进行分析。结果:G1组黏结强度高于其余各组。G2、G3、G4间比较，差异均无统计学意义(p>0.05)。结论:NaOCl对黏结强度的不良影响在接触14天后仍持续存在。

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Residual Effect of Sodium Hypochlorite on Pulp Chamber Dentin Adhesion

Aim: This study has evaluated the residual effect of NaOCl on resin-pulp chamber dentin bond strength after 7 and 14 days, using a three-step etch-and-rinse adhesive system. Methodology: Forty pulp chamber dentin from bovine incisors crowns were randomly allocated to one of the following groups: G1, immersion in 0.9% saline solution for 30 minutes (control); G2, immersion in 5.25% NaOCl for 30 minutes; G3, immersion in 5.25% NaOCl for 30 minutes and stored for 7 days; and G4, immersion in 5.25% NaOCl for 30 minutes and stored for 14 days. After restoration, the dentin/resin interface was tested by microtensile bond strength and failure mode was analyzed by Scanning Electron Microscopy. Data were analyzed by ANOVA followed by Tukey. Results: G1 had higher bond strength than the rest of the groups. There were no statistically significant differences among G2, G3, and G4 (p>0.05). Conclusions: The adverse effect of NaOCl on bond strength persisted even after 14 days after exposure.

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来源期刊

Giornale Italiano di Endodonzia DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

0.90

自引率

25.00%

发文量

审稿时长

24 weeks

期刊介绍： The Giornale Italiano di Endodonzia was founded in 1987 and is the official journal of the Italian Society of Endodontics (SIE). It is a peer-reviewed journal publishing original articles on clinical research and/or clinical methodology, case reports related to Endodontics. The Journal evaluates also contributes in restorative dentistry, dental traumatology, experimental pathophysiology, pharmacology and microbiology dealing with Endodontics.