Salih Al Qassar Sarmad S, Ismael Afnan Jamaluddin, Dewachi Zaid Br
Department of Pedodontics, Orthodontics and Prevention, College of Dentistry, University of Mosul, Mosul, Iraq.
J Orthod Sci. 2024 Sep 17;13:34. doi: 10.4103/jos.jos_18_24. eCollection 2024.
This study aimed to compare the force decay of the power-chain elastics after exposure to anti-coronavirus 2019 (COVID-19) antiseptic mouthwashes at different intervals.
A total of 300 power-chain pieces were used from American Orthodontics (AO) and Dentaurum (D) brands. Each piece composed of five loops that were selected to simulate canine retraction distally. The samples were randomly grouped according to immersion in the tested mouthwashes 0.2% povidone-iodine (PVP-I), 1% hydrogen peroxide (HO), and 0.2% chlorhexidine (CHX) and cetylpyridinium chloride (CPC). The maximum tensile load failure testing (MTLT) was assessed at six time points (zero, one hour, 24 hours, 1, 2 and 4 weeks). Analysis of variance (ANOVA) and Tukey's tests were used to analyse the data, where < 0.05.
Significant differences in MTLT of power-chain elastics used at different immersion intervals were observed. MTLT, in each tested group, decreased significantly as the immersion time increased with significant differences among the tested mouthwashes at each time point. HO group displays a maximum force decay throughout the time intervals for both brands, in contrast to CPC group, which shows less degradation over time.
Both brands are decade over time during exposure to the tested mouthwashes. CPC mouthwashes is a good option to be described for orthodontic patient during COVID-19 pandemic, whereas HO mouthwashes should be avoided.
本研究旨在比较动力链弹性体在不同时间间隔暴露于抗2019冠状病毒病（COVID-19）抗菌漱口水后的力衰减情况。
共使用了来自美国正畸公司（AO）和登泰克公司（D）品牌的300个动力链片段。每个片段由五个环组成，选择这些环来模拟犬齿向远中移动。根据浸泡在测试漱口水（0.2%聚维酮碘（PVP-I）、1%过氧化氢（HO）、0.2%氯己定（CHX）和西吡氯铵（CPC））中的情况将样本随机分组。在六个时间点（零小时、一小时、24小时、1周、2周和4周）评估最大拉伸载荷破坏试验（MTLT）。采用方差分析（ANOVA）和Tukey检验分析数据，其中P<0.05。
观察到在不同浸泡时间间隔使用的动力链弹性体的MTLT存在显著差异。在每个测试组中，MTLT随着浸泡时间的增加而显著降低，并且在每个时间点测试漱口水之间存在显著差异。对于两个品牌，HO组在整个时间间隔内显示出最大的力衰减，相比之下，CPC组随着时间的推移降解较少。
在暴露于测试漱口水期间，两个品牌的动力链弹性体随时间都会衰减。在COVID-19大流行期间，CPC漱口水是正畸患者的一个不错选择，而HO漱口水应避免使用。
