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Curing mode affects bond strength of adhesively luted composite CAD/CAM restorations to dentin

机译:固化方式会影响粘合的复合CAD / CAM修复体与牙本质的粘合强度

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摘要

Objectives. To determine the effect of curing mode and restoration-surface pre-treatment on the micro-tensile bond strength (μTBS) to dentin. Methods. Sandblasted CAD/CAM composite blocks (LAVA Ultimate, 3M ESPE) were cemented to bur-cut dentin using either the etch & rinse composite cement Nexus 3 ('NX3', Kerr) with Optibond XTR ('XTR', Kerr), or the self-etch composite cement RelyX Ultimate ('RXU', 3M ESPE) with Scotchbond Universal ('SBU', 3M ESPE). All experimental groups included different 'curing modes' (light-curing of adhesive and cement ('LL'), light-curing of adhesive and auto-cure of cement ('LA'), co-cure of adhesive through light-curing of cement ('AL'), or complete auto-cure ('AA')) and different 'restoration-surface pre-treatments' of the composite block (NX3: either a silane primer (Kerr), or the XTR adhesive; RXU: either silane primer (RelyX Ceramic Primer, 3M ESPE) and SBU, or solely SBU). After water-storage (7 days, 37 ℃), the μTBS was measured. Additionally, the degree of conversion (DC) of both cements was measured after 10min and after 1 week, either auto-cured (21℃/37℃) or light-cured (directly/through 3-mm CAD/CAM composite). Results. The linear mixed-effects model (α = 0.05) revealed a significant influence of the factors 'curing mode' and 'composite cement', and a less significant effect of the factor 'restoration-surface pre-treatment'. Light-curing 'LL' revealed the highest μTBS, which decreased significantly for all other curing modes. For curing modes 'AA' and 'AL', the lowest μTBS and a high percentage of pre-testing failures were reported. Overall, DC increased with light-curing and incubation time. Significance. The curing mode is decisive for the bonding effectiveness of adhesively luted composite CAD/CAM restorations to dentin.
机译:目标。为了确定固化方式和修复表面预处理对牙本质的微拉伸粘合强度(μTBS)的影响。方法。使用带有Optibond XTR('XTR',Kerr)的蚀刻和漂洗复合水泥Nexus 3('NX3',Kerr)将喷砂的CAD / CAM复合块(LAVA Ultimate,3M ESPE)粘结到Bur-cut牙本质上。自刻复合水泥RelyX Ultimate('RXU',3M ESPE)和Scotchbond Universal('SBU',3M ESPE)。所有实验组均包括不同的“固化模式”(胶粘剂和水泥的光固化(“ LL”),胶粘剂的光固化和水泥的自动固化(“ LA”),胶粘剂通过光固化的共固化)水泥('AL')或完全自动固化('AA'))以及复合块的不同“修复表面预处理”(NX3:硅烷底漆(Kerr)或XTR粘合剂; RXU:硅烷底漆(RelyX Ceramic Primer,3M ESPE)和SBU,或仅SBU)。储水(37天,37℃)后,测量μTBS。另外,在自动固化(21℃/ 37℃)或光固化(直接/通过3-mm CAD / CAM复合材料)后10分钟和1周后测量了两种水泥的转化率(DC)。结果。线性混合效应模型(α= 0.05)显示了因素“固化方式”和“复合水泥”的显着影响,而因素“修复表面预处理”的影响较小。光固化“ LL”显示出最高的μTBS,对于所有其他固化模式,该值都显着下降。对于“ AA”和“ AL”固化模式,据报道最低的μTBS和较高的预测试失败率。总体而言,DC随着光固化和孵育时间的增加而增加。意义。固化方式对于粘合粘合的复合CAD / CAM修复体与牙本质的粘合效果至关重要。

著录项

  • 来源
    《Dental materials》 |2014年第3期|281-291|共11页
  • 作者单位

    KU Leuven - BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven) & Dentistry, University Hospitals Leuven, Belgium/Hannover Medical School, Department of Conservative Dentistry, Periodontology and Preventive Dentistry, OE 7740, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany;

    KU Leuven - BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven) & Dentistry, University Hospitals Leuven, Belgium;

    KU Leuven - BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven) & Dentistry, University Hospitals Leuven, Belgium;

    Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Germany;

    KU Leuven - BIOMAT, Department of Oral Health Sciences, KU Leuven (University of Leuven) & Dentistry, University Hospitals Leuven, Belgium;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CAD/CAM; Cement; Luting; Silane; Curing; Degree of conversion;

    机译:CAD / CAM;水泥;ting硅烷养护;转换度;
  • 入库时间 2022-08-18 03:46:56

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