Janfaza Jalal, Valizadeh Sara, Tanbakuchi Behrad
Private Practice, Tehran, Iran.
Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
Front Dent. 2024 May 22;21:18. doi: 10.18502/fid.v21i18.15551. eCollection 2024.
This study aimed to evaluate the shear bond strength of ceramic brackets bonded to the enamel surface using Vertise Flow, with or without the application of phosphoric acid. Forty-five extracted human premolar teeth were randomly assigned to three groups (N=15) based on the adhesive used for bonding: 1) Transbond XT, etch, and bond; 2) Vertise Flow; 3) Etch and Vertise Flow. After a 500-round thermocycling procedure, the shear bond strength was measured using a universal testing machine. The samples were then evaluated under a stereomicroscope to determine failure modes, and the Adhesive Remnant Index (ARI) was measured for each group. The data were analyzed with one-way ANOVA and post-hoc Tamhane at a significance level of P<0.05. The highest shear bond strength values were observed in the Transbond XT (13.5±5.38MPa), acid etch and Vertise Flow (11.2±2.89MPa), and Vertise Flow (6.2±3.16MPa) groups, respectively, in descending order. The Vertise Flow group exhibited a significantly lower shear bond strength value compared to the other two groups, with no significant difference between the latter two. While all three study groups demonstrated clinically acceptable shear bond strength values, Vertise Flow showed lower values compared to the other two adhesives. The Vertise Flow composite resin system, whether used alone or with acid etching, remains a suitable choice for bonding ceramic brackets, offering the advantage of a simplified bonding procedure.
本研究旨在评估使用Vertise Flow粘结到牙釉质表面的陶瓷托槽的剪切粘结强度，无论是否应用磷酸。根据用于粘结的粘合剂，将45颗拔除的人类前磨牙随机分为三组（N = 15）：1）Transbond XT，酸蚀并粘结；2）Vertise Flow；3）酸蚀并使用Vertise Flow。经过500次热循环程序后，使用万能试验机测量剪切粘结强度。然后在体视显微镜下评估样本以确定失效模式，并测量每组的粘结剂残留指数（ARI）。数据采用单因素方差分析和事后Tamhane检验进行分析，显著性水平为P<0.05。最高的剪切粘结强度值分别在Transbond XT组（13.5±5.38MPa）、酸蚀并使用Vertise Flow组（11.2±2.89MPa）和Vertise Flow组（6.2±3.16MPa）中观察到，顺序递减。与其他两组相比，Vertise Flow组的剪切粘结强度值显著较低，而后两组之间无显著差异。虽然所有三个研究组的剪切粘结强度值在临床上均可接受，但与其他两种粘合剂相比，Vertise Flow的值较低。Vertise Flow复合树脂系统，无论是单独使用还是与酸蚀联合使用，仍然是粘结陶瓷托槽的合适选择，具有简化粘结程序的优点。
