PDF(Pubmed)
Abstract：
BACKGROUND: 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.
METHODS: 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.
RESULTS: 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.
CONCLUSIONS: 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.
METHODS: 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.
RESULTS: 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.
CONCLUSIONS: 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.
摘要：
背景：正畸矫正器中使用的材料的机械性能的变化可能会影响矫正器的工作性能，从而影响临床进展和预后。大量研究证实了合金腐蚀与表面粗糙度升高之间的相关性,直接影响正畸弓丝的工作特性。
方法：本研究使用了30根镍钛（NiTi）正畸弓丝。随机选择患者并根据随机计划分为三组；（对照组）：受试者进行定期口腔卫生；（氟化物组）：受试者使用氟化物进行强化预防；（氯己定组）：受试者使用氯己定。通过SEM评估代表性样品，然后使用ImageJ软件检查高分辨率的SEM图像以确定表面粗糙度并获得结果进行进一步的统计分析。
结果：我们的发现表明，在对照组和其他两组之间，三组的前部和后部之间存在显着差异，而在NaF和CHX组之间没有显着差异。总的来说,两组比较的p值为0.000，表明特别是在对照组和NaF组之间存在非常显着的差异。
结论：含氟化钠的漱口水比对照组和CHX组显示出更明显的表面变化，应根据正畸材料处方以减少副作用。
方法：本研究使用了30根镍钛（NiTi）正畸弓丝。随机选择患者并根据随机计划分为三组；（对照组）：受试者进行定期口腔卫生；（氟化物组）：受试者使用氟化物进行强化预防；（氯己定组）：受试者使用氯己定。通过SEM评估代表性样品，然后使用ImageJ软件检查高分辨率的SEM图像以确定表面粗糙度并获得结果进行进一步的统计分析。
结果：我们的发现表明，在对照组和其他两组之间，三组的前部和后部之间存在显着差异，而在NaF和CHX组之间没有显着差异。总的来说,两组比较的p值为0.000，表明特别是在对照组和NaF组之间存在非常显着的差异。
结论：含氟化钠的漱口水比对照组和CHX组显示出更明显的表面变化，应根据正畸材料处方以减少副作用。
