Hu Yichun, Gao Jiayang, Huang Xinyue, Li Yutong, Chen Ziyi, Zhan Desong, Sano Hidehiko, Carvalho Ricardo M, Fu Jiale
School and Hospital of Stomatology, China Medical University, Shenyang, China.
Department of Dental Materials Science, The Second Department of Prosthodontics, School and Hospital of Stomatology, China Medical University, Shenyang, China.
Front Bioeng Biotechnol. 2024 Jan 15;12:1354241. doi: 10.3389/fbioe.2024.1354241. eCollection 2024.
The present study aimed to assess the bond strength and durability of six bonding agents concerning their application to metal or ceramic brackets and zirconia. Six resin cement bonding agents (XT, XTS, RSBU, RGBU, SBPM, and GMP) were chosen for this investigation. Specimens were either stored in distilled water at 37°C for 24 h or subjected to 5,000 thermocycles before conducting a Shear Bond Strength (SBS) test. Statistical analysis of the SBS data was performed using three-way ANOVA and Games-Howell tests (α = 0.05). The Adhesive Remnant Index was examined, and the debonding surface details on brackets and zirconia were observed. For metal brackets, all groups demonstrated clinically acceptable bond strength, irrespective of storage conditions, except for the XT group. Regarding ceramic brackets, all groups displayed acceptable bond strength after 24 h of water storage. However, following thermocycling, a significant decrease in SBS was noted across all groups ( < 0.05), with SBPM exhibiting a higher bond strength. Three-way ANOVA analysis indicated that SBS values were notably influenced by each factor, and an interaction among the three independent variables was observed ( = 0.000). The reliable bond strength between ceramic brackets and zirconia was significantly lower after thermocycling compared to that of metal brackets and zirconia. SBPM exhibited consistent and robust bond strength between ceramic/metal brackets and zirconia across various storage conditions. Furthermore, the HEMA-free adhesive demonstrated a potentially more consistent bonding performance compared to the HEMA-containing adhesive employed in this study.
本研究旨在评估六种粘结剂在应用于金属或陶瓷托槽及氧化锆时的粘结强度和耐久性。本研究选用了六种树脂水门汀粘结剂（XT、XTS、RSBU、RGBU、SBPM和GMP）。在进行剪切粘结强度（SBS）测试之前，将样本要么在37°C的蒸馏水中储存24小时，要么进行5000次热循环。使用三因素方差分析和Games-Howell检验（α = 0.05）对SBS数据进行统计分析。检查了粘结剂残留指数，并观察了托槽和氧化锆上的脱粘表面细节。对于金属托槽，除XT组外，所有组在任何储存条件下均表现出临床可接受的粘结强度。对于陶瓷托槽，在储存24小时的水中后，所有组均表现出可接受的粘结强度。然而，在热循环后，所有组的SBS均显著下降（<0.05），其中SBPM表现出较高的粘结强度。三因素方差分析表明，SBS值受每个因素的显著影响，并且观察到三个自变量之间存在相互作用（= 0.000）。与金属托槽和氧化锆相比，热循环后陶瓷托槽与氧化锆之间的可靠粘结强度显著降低。SBPM在各种储存条件下，在陶瓷/金属托槽与氧化锆之间均表现出一致且强大的粘结强度。此外，与本研究中使用的含HEMA的粘合剂相比，不含HEMA的粘合剂表现出潜在更一致的粘结性能。
