The influence of the dentin smear layer on adhesion: a self-etching primer vs. a total-etch system
The influence of the dentin smear layer on adhesion: a self-etching primer vs. a total-etch system
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DOI：
10.1016/s0109-5641(03)00023-x
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发表时间：
2003-12-01
期刊：
影响因子：
5
通讯作者：
Marshall, GW
中科院分区：
文献类型：
--
作者：
Oliveira, SSA;Pugach, MK;Marshall, GW
Objective.目的：研究不同磨料对自酸蚀底漆（SE）和全酸蚀（SB）粘接系统粘接力的影响。用0.05 μ m氧化铝浆、240-、320-或600-粒度砂纸、#245碳化物、#250.9 F金刚石或#250.9 C金刚石布尔斯进一步研磨抛光的人牙本质盘。剪切粘结强度（SBS）进行了评价，通过单平面搭接剪切后，与SE或SB和修复复合材料。使用SEM，通过厚度来表征表面层;使用AFM，通过表面粗糙度来表征表面层;使用SEM，基于开放小管的百分比，通过对调理剂的反应来表征表面层。总体而言，当使用SB时SBS低于使用SE时。在SE组中，SBS随着磨料粗糙度的增加而降低。在布尔斯钻头中，碳化物组的SBS最高，320和240粒度的砂纸的SBS接近碳化物组。表面粗糙度和玷污层厚度变化强烈的粗糙度。用SE底漆处理后，用硬质合金钻研磨的标本的小管开放度与240或320粒度的砂纸没有差异，但与600粒度的砂纸有差异。即使受到不同表面制备方法的影响，SE产生的SBS也高于SB。碳化物钻组的SBS较高且涂抹层较薄，表明其在体内使用自蚀刻材料时使用。总体而言，320粒度砂纸表面光洁度产生的结果更接近硬质合金磨头的结果，建议在使用SE材料时将其用作体外临床模拟器。2003年牙科材料学院。由爱思唯尔有限公司出版。保留所有权利。
Objective. To determine the effect of dentin smear layers created by various abrasives on the adhesion of a self-etching primer (SE) and total-etch (SB) bonding systems.Methods. Polished human dentin disks were further abraded with 0.05 mum alumina slurry, 240-, 320- or 600-grit abrasive papers, # 245 carbide, # 250.9 F diamond or # 250.9 C diamond burs. Shear bond strength (SBS) was evaluated by single-plane lap shear, after bonding with SE or SB and with a restorative composite. Smear layers were characterized by thickness, using SEM; surface roughness using AFM; and reaction to the conditioners, based on the percentage of open tubules, using SEM.Results. Overall, SBS was lower when SB was used than when SE was used. SBS decreased with increasing coarseness of the abrasive in the SE group. Among burs, the carbide group had the highest SBS, and 320- and 240-grit papers had SBS close to the carbide group. Surface roughness and smear layer thickness varied strongly with coarseness. After conditioning with SE primer, the tubule openness of specimens abraded by carbide bur did not differ from 240- or 320-grit paper, but did differ from the 600-grit.Significance. Even though affected by different surface preparation methods, SE yielded higher SBS than SB. The higher SBS and thin smear layer of the carbide bur group, suggests its use when self-etching materials are used in vivo. Overall, the 320-grit abrasive paper surface finish yielded results closer to that of the carbide bur and its use is recommended in vitro as a clinical simulator when using the SE material. 2003 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.