Seeliger Julia H, Botzenhart Ute U, Gedrange Tomasz, Kozak Karol, Stepien Lukas, Machoy Monika
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Biomed Tech (Berl). 2017 Aug 28;62(4):415-420. doi: 10.1515/bmt-2016-0241.
The aim of this study was a comparison of shear bond strength (SBS) on tooth enamel of different primers combined with the adhesive paste Transbond XT.
Forty bovine teeth were used in order to create 40 test blocks. The blocks were divided into four groups of 10 blocks each: group A - sample primer (SP); group B - Opal Seal (OS); group C - Transbond Plus SEP (TSEP); group D - Transbond XT Primer (TXT). After surface preparation and application of the primer, respectively, two stainless steel brackets were fixed on each tooth by using Transbond XT. Accordingly, 80 brackets were debonded (n=20). Shear bond strength and adhesive remnant index (ARI) scores were evaluated. Statistical analyses were performed by using the Student's t-test and Mann-Whitney U test.
All tested groups revealed high shear bond strength in a similar size range. There were no significant differences between the groups concerning shear bond strength. The ARI scores of group C showed significantly lower ARI scores (0 and 1) than that of group D. Apart from that there was no statistical difference.
In combination with the adhesive paste Transbond XT, all tested primers were suitable for fixing orthodontic brackets. The primers could be changed according to the clinical situation.
本研究旨在比较不同底漆与正畸粘结剂Transbond XT联合使用时对牙釉质的剪切粘结强度（SBS）。
使用40颗牛牙制作40个测试块。将测试块分为四组，每组10个：A组 - 样本底漆（SP）；B组 - Opal Seal（OS）；C组 - Transbond Plus SEP（TSEP）；D组 - Transbond XT底漆（TXT）。在分别进行表面处理和底漆涂布后，使用Transbond XT在每颗牙齿上固定两个不锈钢托槽。相应地，对80个托槽进行脱粘（n = 20）。评估剪切粘结强度和粘结剂残留指数（ARI）评分。采用学生t检验和曼 - 惠特尼U检验进行统计分析。
所有测试组在相似的大小范围内均显示出较高的剪切粘结强度。各组之间的剪切粘结强度无显著差异。C组的ARI评分（0和1）显著低于D组。除此之外，无统计学差异。
与正畸粘结剂Transbond XT联合使用时，所有测试底漆均适用于固定正畸托槽。可根据临床情况更换底漆。
