评价聚维酮碘和过氧化氢漱口液对正畸弓丝影响的研究。

Evaluation of the Effects of Povidone Iodine and Hydrogen Peroxide Mouthwashes on Orthodontic Archwires: An Study.

机构信息

Department of Orthodontics and Dentofacial Orthopaedics, Adhiparasakthi Dental College & Hospital, Melmaruvathur, Tamil Nadu, India, e-mail:

出版信息

J Contemp Dent Pract. 2023 Apr 1;24(4):228-237. doi: 10.5005/jp-journals-10024-3484.

DOI:10.5005/jp-journals-10024-3484

PMID:37469261

Abstract

AIM

To evaluate the effects of two preprocedural mouthrinses, hydrogen peroxide (HO) and povidone iodine (PI) on the surface characteristics and mechanical properties of nickel-titanium (NiTi) and stainless steel (SS) orthodontic archwires.

MATERIALS AND METHODS

Five wire specimens were used, each (0.016" NiTi, 0.016" SS wires, 0.016 × 0.022" NiTi and 0.016 × 0.022" SS wires) specimen was cut into 30 mm lengths and immersed in 9% of artificial saliva and 91% of two preprocedural mouthrinse solutions: 1.5% hydrogen peroxide mouthwash, 0.2% povidone-iodine mouthwash, and distilled water (control group) for 90 minutes and incubated at 37°C. The wire specimens were then subjected to a three-point bending test for mechanical testing and viewed under a scanning electron microscope (SEM) to evaluate their surface characteristics. The collected data were analyzed using one-way analysis of variance (ANOVA) and Bonferroni post hoc test.

RESULTS

The results showed a significant increase in the flexural modulus (E) of Nitinol wires in povidone-iodine gargle ( < 0.05) and a significant increase in the E of stainless steel wires in hydrogen peroxide mouthwash ( < 0.05). Analysis using SEM showed varying qualitative surface changes in the form of corrosion, voids, and ridges on the wires after exposure to both the mouthwashes.

CONCLUSION

Though there were significant changes in the flexural modulus of archwires for both the mouthwashes, hydrogen peroxide did not show a significant difference in the E of wires at most of the deflection intervals when compared with the other two solutions, hence, could be used in orthodontic patients as an effective preprocedural mouthrinse.

CLINICAL SIGNIFICANCE

Preprocedural mouthrinses can cause surface irregularities on the wires which in turn lead to an increase in friction at the bracket-wire interface, thereby disrupting effective tooth movement and extending the orthodontic treatment time.

摘要

目的

评估两种术前漱口液（过氧化氢和聚维酮碘）对镍钛（NiTi）和不锈钢（SS）正畸弓丝表面特性和力学性能的影响。

材料和方法

使用 5 个弓丝样本，每个样本（0.016" NiTi、0.016" SS 弓丝、0.016×0.022" NiTi 和 0.016×0.022" SS 弓丝）均切成 30mm 长，并浸入 9%人工唾液和两种术前漱口液中 91%：1.5%过氧化氢漱口水、0.2%聚维酮碘漱口水和蒸馏水（对照组）90 分钟，在 37°C 下孵育。然后对弓丝样本进行三点弯曲测试进行力学测试，并在扫描电子显微镜（SEM）下观察其表面特性。收集的数据使用单因素方差分析（ANOVA）和 Bonferroni 事后检验进行分析。