Department of Orthodontic, Faculty of Dentistry, Suez Canal University, Ismaillia, Egypt.
Department of Orthodontic, Faculty of Dentistry, Sinai University, Qantara Branch, Ismailia, Egypt.
BMC Oral Health. 2024 May 14;24(1):564. doi: 10.1186/s12903-024-04289-4.
Alterations in the mechanical properties of the materials utilized in orthodontic appliances could affect the working properties of the appliances, thereby affecting clinical progress and outcome. Numerous studies have confirmed the correlation between alloy corrosion and raised surface roughness, which has a direct impact on the working characteristics of orthodontic archwires.
Thirty nickel-titanium (NiTi) orthodontic archwires were utilized in this study. Patients were randomly selected and allocated into three groups according to the randomization plan; (The control group): subjects practiced regular oral hygiene; (The fluoride group): subjects used fluoride for intensive prophylaxis; (The chlorhexidine group): subjects used chlorhexidine. Representative samples were evaluated by SEM, and then SEM images with high resolution were examined using Image J software to determine the surface roughness and obtain the results for further statistical analysis.
Our findings indicated a significant difference was found between the three groups regarding the anterior and posterior parts between the control and the two other groups and a non-significant difference between NaF and CHX groups. Overall, the p-value for group comparisons was 0.000 for both parts, indicating a highly significant difference especially between the control and NaF groups.
Mouthwashes containing sodium fluoride demonstrated more significant surface alterations than the control and CHX groups and should be prescribed in accordance with orthodontic materials to reduce side effects.
正畸矫治器材料力学性能的改变可能会影响矫治器的工作性能，从而影响临床进展和结果。许多研究证实了合金腐蚀与表面粗糙度升高之间的相关性，这直接影响了正畸弓丝的工作特性。
本研究使用了 30 根镍钛（NiTi）正畸弓丝。根据随机分组方案，随机选择患者并将其分为三组；（对照组）：受试者进行常规口腔卫生护理；（氟化物组）：受试者使用氟化物进行强化预防；（洗必泰组）：受试者使用洗必泰。使用 SEM 对代表性样本进行评估，然后使用 Image J 软件检查具有高分辨率的 SEM 图像，以确定表面粗糙度并获得进一步统计分析的结果。
我们的研究结果表明，在前部和后部，对照组与其他两组之间存在显著差异，而氟化物组和洗必泰组之间没有显著差异。总体而言，两组之间的 p 值均为 0.000，表明差异非常显著，尤其是在对照组和氟化物组之间。
含氟漱口水比对照组和洗必泰组更能显著改变表面，应根据正畸材料进行规定，以减少副作用。
