牙本质水分对丝路纤维桩粘接性能的影响。

IF 2.5 4区 医学 Q2 Dentistry
Renata Terumi Jitumori, Rafaela Caroline Rodrigues, Alessandra Reis, João Carlos Gomes, Giovana Mongruel Gomes
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引用次数: 0

摘要

本研究的目的是评估牙本质湿度(潮湿和干燥)对不同粘接策略(蚀刻-冲洗、自蚀刻和自粘)下纤维桩与根牙本质粘接的影响。对72颗拔除的单根人牙进行根管治疗,并根据牙本质表面和黏附系统的湿润程度分为6组(n = 12): a)蚀刻冲洗/湿润,b)蚀刻冲洗/干燥,c)自蚀刻/湿润,d)自蚀刻/干燥,e)自黏附/湿润,6)自黏附/干燥。将试样切成6片,测定树脂水泥的推出粘结强度(BS)、扫描电镜(SEM)纳米渗漏(NL)和维氏显微硬度(VHN)。采用万能试验机(ag - 1,岛津Autograph),以0.5 mm/min的十字速度进行挤压,直至挤压后,用50kg的称重传感器评估挤压强度。BS、NL和VHN数据采用双因素方差分析和Tukey检验(α = 0.05)。牙本质水分作为主要因素在推出试验中没有显著差异。然而,在蚀刻-漂洗组中可以观察到更高的BS值。干牙本质组NL的比例较低。预蚀刻组硬度值的水分模式不显著。额外的水分没有增加评估的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of dentin moisture on the adhesive properties of luting fiber posts using adhesive strategies.

The purpose of this study was to evaluate the effect of dentin moisture (moist and dry) on the bonding of fiber posts to root dentin with different adhesive strategies (etch-and-rinse, self-etch, and self-adhesive). Seventy-two extracted single-rooted human teeth were endodontically treated and divided into six groups (n = 12) according to the moisture of dentin surface and adhesive systems as follows: a) etch-and-rinse/moist, b) etch-and-rinse/dry, c) self-etch/moist, d) self-etch/dry, e) self-adhesive/moist, and 6) self-adhesive/dry. The specimens were sectioned into six slices for push-out bond strength (BS), nanoleakage (NL) by SEM, and Vickers microhardness (VHN) of the resin cement. A universal testing machine (AG-I, Shimadzu Autograph) was used at a crosshead speed of 0.5 mm/min until post extrusion, with a load cell of 50 kg for evaluation of the push-out strength. Data on BS, NL, and VHN were evaluated by two-way ANOVA and Tukey's test (α = 0.05). Dentin moisture as the main factor was not significantly different for the push-out test. However, higher BS values can be observed for the etch-and-rinse group. A lower percentage of NL was found in the dry dentin groups. The moisture pattern was not significant in the hardness values for the pre-etching groups. Additional moisture did not increase the evaluated properties.

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来源期刊
Brazilian Oral Research
Brazilian Oral Research DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
3.70
自引率
4.00%
发文量
107
审稿时长
12 weeks
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