Objective: The aim of this double-blind study was to compare the extent of corrosion on the surface of nickel-titanium (NiTi) wires in various mouthwashes.
Methods: A total of 80 patients who received orthodontic treatment with as-received 0.016x0.022 inch NiTi wires were included in the study, and they were split into 4 groups. The first group used 0.05% of (225ppm F-) sodium fluoride (NaF) (Colgate Plax) containing mouthwash, 21.6% alcohol (Listerine Cool Mint) containing mouthwash, and 0.2% clorhexidine (CHX) (Klorhex) containing mouthwash and the control group used drinking water with melt menthol as mouthwash. After 30 days of using mouthwash, the surfaces of NiTi wires were examined with atomic force microscopy (AFM), and surface roughness values were calculated.
Results: Mouthwashes containing fluoride, essential oils, and CHX created higher surface roughness on NiTi wires than the control group. The floride-containing mouthwash group showed less corrosion than the CHX group, whereas there was no difference between the essential oil group. AFM images show supportive data with the results of the clinical study. The results were assessed using a 95% confidence interval and a significance level p<0.05.
Conclusion: CHX, essential oil, and floride-containing mouthwashes cause corrosion of NiTi wires. Floride-containing mouthwash can be preferred over CHX mouthwash due to its lesser corrosion effect.
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http://dx.doi.org/10.4274/TurkJOrthod.2023.2022.182 | DOI Listing |
Clin Oral Investig
December 2024
Department of Orthodontics, Faculty of Dentistry, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Introduction: This study aims to determine if intraoral 850 nm LED irradiation could reduce the duration of lower anterior crowding alignment.
Methods: In a parallel-designed, randomized controlled clinical trial 60 patients with 2 to 6 mm of lower incisor crowding who need non-extraction treatment, were randomly assigned to the intervention and control groups by block randomization (36 females, 24 males, mean age: 19.93 ± 3.
Molecules
November 2024
BT Orthodontic Office "Galeria Uśmiechów", Polskie Towarzystwo Techniki Ortodontycznej, Plac Piłsudskiego 25, 51-152 Wroclaw, Poland.
This study investigates the release of metal ions from commonly used orthodontic archwires, specifically, stainless steel (SS), nickel-titanium (NiTi), chromium-cobalt (CrCo), and titanium-molybdenum (TMA) alloys. To simulate oral conditions, each type of wire was immersed in artificial saliva at body temperature for a four-week period. Ion release levels were analyzed through ICP-OES mass spectrometry.
View Article and Find Full Text PDFOrthod Fr
November 2024
Département d’Orthodontie, Faculté de Médecine dentaire, Université Saint-Joseph, 650 rue de Damas, B.P. 11-5076 Riad El Solh, Beyrouth, Liban
Sci Rep
November 2024
LLC Metsintez, Tula, Russia.
The effects of severe plastic deformation on NiTi alloys' structure and properties have been extensively studied over the past decades. However, there is a notable lack of systematic data regarding the impact of industrial hot deformation techniques on these alloys. This gap arises from challenges in manufacturing processes related to the unevenness of ingots produced by casting technologies.
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