Bukhari Kawthar, Alaydaa Rawan, Alhazmi Rana, Alharbi Abdulaziz, Alahmadi Omar, Zafar Muhammad, Almarhoumi Asim
Department of Restorative Dental Sciences, College of Dentistry and Dental Hospital, Taibah University, Medina, Saudi Arabia.
University Dental Hospital, Taibah University, Medina, Saudi Arabia.
Saudi Dent J. 2025 Apr 15;37(1-3):3. doi: 10.1007/s44445-025-00002-5.
Adhesives are essential for attaching orthodontic brackets to the tooth surface and ensuring safe removal during debonding. ACTIVA™ BioACTIVE-Restorative (ABR) is a bioactive composite with potential advantages. The purpose of this study was to evaluate the shear bond strength (SBS) and adhesive remnant index (ARI) of ACTIVA™ BioACTIVE-Restorative (ABR) with conventional adhesives, including Transbond XT™ (TXT) and Orthocem™ (OC). A total of 51 human maxillary premolars were distributed randomly into three groups (n = 17). Each group was bonded with one adhesive following the manufacturer's protocols. Then were subjected to 5000 thermocycles to simulate oral conditions. SBS was measured using a universal testing machine, and ARI scores were visually analysed under magnification. Statistical analysis was conducted using one-way ANOVA and chi-squared tests, with a 0.05 level of significance. Mean SBS values were 11.26 MPa, 12.52 MPa, and 12.96 MPa for ABR, TXT, and OC, respectively, with no significant differences (p = 0.513). ARI analysis revealed significant differences (p = 0.009) as ABR predominantly exhibited ARI 3 scores, indicating no adhesive remnants on enamel. In contrast, TXT and OC groups showed higher adhesive retention. ABR demonstrated shear bond strength comparable to conventional adhesives, meeting the clinical thresholds for orthodontic use. But demonstrated more complete adhesive failure in the enamel-adhesive interface rather than cohesive failure within the adhesive material like in TXT and OC.
粘合剂对于将正畸托槽粘贴到牙齿表面以及确保在去除托槽时安全移除至关重要。ACTIVA™生物活性修复材料（ABR）是一种具有潜在优势的生物活性复合材料。本研究的目的是评估ACTIVA™生物活性修复材料（ABR）与传统粘合剂（包括Transbond XT™（TXT）和Orthocem™（OC））的剪切粘结强度（SBS）和粘结剂残留指数（ARI）。总共51颗人类上颌前磨牙被随机分为三组（n = 17）。按照制造商的方案，每组使用一种粘合剂进行粘结。然后进行5000次热循环以模拟口腔环境。使用万能试验机测量SBS，并在放大倍数下对ARI评分进行视觉分析。使用单因素方差分析和卡方检验进行统计分析，显著性水平为0.05。ABR、TXT和OC的平均SBS值分别为11.26MPa、12.52MPa和12.96MPa，无显著差异（p = 0.513）。ARI分析显示存在显著差异（p = 0.009），因为ABR主要表现为ARI 3评分，表明在牙釉质上没有粘结剂残留。相比之下，TXT和OC组显示出更高的粘结剂保留率。ABR表现出与传统粘合剂相当的剪切粘结强度，满足正畸使用的临床阈值。但与TXT和OC不同，ABR在牙釉质 - 粘结剂界面表现出更完全的粘结失败，而不是粘结剂材料内部的内聚破坏。
