Kate James Mary, Yu Qingzhao, Mon Htwe, Xu Xiaoming, Blanchard Alli, Armbruster Paul, Ballard Richard W
Private Practice of Orthodontics, Houston, TX, USA.
Department of Biostatistics, LSU Health Sciences Center, New Orleans, LA, USA.
Turk J Orthod. 2022 Dec;35(4):255-259. doi: 10.5152/TurkJOrthod.2022.21209.
The aim of this study was to compare the tie wing fracture resistance of 4 different manufacturers' ceramic brackets currently on the market.
The tie wings of ceramic brackets from 4 manufacturers were tested with 10 samples in each group. The brackets were Ormco Symetri, 3M Clarity, American Radiance Plus, and Dentsply Ovation S. The brackets were mounted and fixed in a universal testing machine. A stainless steel ligature wire was looped around a tie wing and the mean tensile strength was both tested and recorded.
There was a significant overall difference in tensile strength among the 4 groups (P < .0001) with the 3M Clarity brackets having the highest MPa. When the groups were compared to each other, they also showed a significant difference in mean tensile strength with the exception being the American Radiance Plus and Ormco Symetri brackets.
Test results concluded that the 3M Clarity brackets had the highest resistance to tie wing fracture, while the Dentsply Ovation S brackets had the lowest resistance.
本研究旨在比较目前市场上4家不同制造商生产的陶瓷托槽的结扎翼抗折性。
对4家制造商生产的陶瓷托槽的结扎翼进行测试，每组10个样本。这些托槽分别是奥美科Symetri、3M Clarity、美国Radiance Plus和登士柏Ovation S。将托槽安装并固定在万能试验机上。用不锈钢结扎丝环绕一个结扎翼，测试并记录平均拉伸强度。
4组之间的拉伸强度存在显著的总体差异（P < .0001），3M Clarity托槽的兆帕数最高。当各组相互比较时，除了美国Radiance Plus和奥美科Symetri托槽外，它们在平均拉伸强度上也显示出显著差异。
测试结果表明，3M Clarity托槽的结扎翼抗折性最高，而登士柏Ovation S托槽的抗折性最低。
