Maureen Boudrot, Philippe François, Sarah Abdel-Gawad, Jean-Pierre Attal, Claire-Adeline Dantagnan
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引用次数: 0
摘要
摘要评估用于正畸托槽粘接的修复用树脂改性玻璃离子粘结剂（RMGIC）的剪切粘结强度（SBS）：根据表面处理（H3PO4 ± Transbond Plus (TSEP) 或 Scotchbond Universal (SU)）和使用的粘合剂（Riva LC HV (RIVA)、Fuji Ortho (FUJI) 和 Transbond XT (TXT)），将 121 颗人类牙齿随机分为 11 组（n = 11）。每个样品都粘接了一个金属钮扣。1 周后进行 SBS 测试，观察脱粘试样以确定失效模式。采用单因子方差分析和 Tukey 后检验比较 SBS 差异，采用费雪精确检验分析失效模式（P 结果：TSEP + FUJI 和 H3PO4 + SU + TXT 的 SBS 值最高，而 H3PO4 + TSEP + RIVA 的 SBS 值最低。在含有 SU 和 TXT 的组别中发现了内聚失效和混合失效，而在其他组别中发现了粘接失效：正畸附着体与牙釉质的粘接可以使用所研究的三种材料中的任何一种。在粘接方案中使用通用粘合剂可以优化粘接值。需要进行临床研究来证实所获得的结果。
Shear bond strength of a RMGIC for orthodontic bracket bonding to enamel.
Objective: To evaluate the shear bond strength (SBS) of a restorative resin-modified glass ionomer cement (RMGIC) for orthodontic bracket bonding.
Materials and methods: One hundred twenty-one human teeth were randomly divided into 11 groups (n = 11) according to the surface treatment applied (H3PO4 ± Transbond Plus (TSEP) or Scotchbond Universal (SU)), and the adhesive used (Riva LC HV (RIVA), Fuji Ortho (FUJI), and Transbond XT (TXT)). For each sample, a metal button was bonded. SBS tests were performed at 1 week and debonded specimens were observed for failure modes determination. One-way ANOVA followed by Tukey's post hoc test was used to compare SBS differences and Fisher's exact test to analyze the failure modes (p < 0.05).
Results: TSEP + FUJI and H3PO4 + SU + TXT showed the highest SBS values while H3PO4 + TSEP + RIVA showed the lowest value. Cohesive failure and mixed failure were found in the groups with SU and TXT and adhesive failure in the other groups.
Discussion/conclusions: The bonding of orthodontic attachments to enamel could be performed with any of the three materials studied. The use of a universal adhesive in the bonding protocol could optimize the adhesion values. Clinical studies would be needed to confirm the results obtained.
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