Objective: This laboratory study aimed to evaluate the effect of different mouthwash solutions on the surface and mechanical properties of NiTi arch wire.
Methods: This experimental study was conducted at the Department of Preventive Dental Sciences, College of Dentistry, Princess Nourah bint Abdulrahman University, Saudi Arabia from September 2023 to November 2023. A 30 mm NiTi wires in length with 0.017 × 0.022" in dimensions were selected and equally divided into four groups: Control (G) group wires were immersed in distilled water (DW); G wires were immersed in antiseptic mouthwash; G wires were immersed in fluoridated mouthwash; and G wires were immersed in therapeutic mouthwash. Surface morphology, nanohardness, and flexural modulus were evaluated at 24-hours, four weeks, and eight weeks' time points. Data were statistically analyzed using a two-way analysis of variance (P<0.05).
Results: The arch wires immersed in DW showed insignificant effects on surface roughness, nanohardness, and flexural modulus at different time points. However, all the experimental groups showed a significant effect of time and immersion solutions on the said properties (P<0.05). At the end of eight weeks, G showed the highest surface roughness (0.346 ± 0.032 µm) and the lowest nanohardness (1.350 ± 0.412 GPa) and flexural modulus (3.960 ± 0.140 MPa) compared to other study groups.
Conclusions: The efficiency of tooth realignment could be influenced by the detrimental influence of fluoride and hydrogen peroxide mouthwash solutions on superelastic NiTi arch wires.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11476127 | PMC |
http://dx.doi.org/10.12669/pjms.40.9.9428 | DOI Listing |
J Orthod Sci
November 2024
Department of Orthodontics, Faculty of Dentistry, Universitas Sumatera Utara, Medan, Indonesia.
Objective: This study aimed at determining the effect of pH changes on nickel titanium wire seen based on the corrosion rate and surface roughness of the wire after immersion in pandan leaves extract.
Material And Methods: The sample used nickel titanium wire of 0.016 inches diameter and 5 cm length and consists of five treatment groups: control group, 0.
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 PDFBiomed Mater
December 2024
Department of Nanomaterials and Nanocoatings, Institute for Color Science and Technology, Tehran, Iran.
In addition to the basic and main parts of hospital equipment, 316 L stainless steel is widely utilized in futures such as nails and screws, wires and medical bone clips, dental implants, heart springs (stents), needles, surgical scissors, etc. In the present study, the electrophoretic deposition of a composite based on chitosan (CS), gelatin, nano and microparticles of hydroxyapatite on a 316 L stainless steel substrate was investigated. Hydroxyapatite particles are added to it due to the ossification abilities of steel and due to an enhanced adhesion and bone production, CS and biocompatible gelatin polymer particles were also added to hydroxyapatite.
View Article and Find Full Text PDFMaterials (Basel)
October 2024
Faculty of Dental Medicine, University of Rijeka, 51000 Rijeka, Croatia.
Legislative framework addresses the issues of alloy corrosion, demanding the restricted use of probable carcinogenic, mutagenic, and toxic-for-human-reproduction (CMG) metals like nickel, cobalt, and chromium and demanding the development of new biomaterials. The aim of this research was to evaluate and compare the ion release of standard dental alloys and their hypoallergenic equivalents. Six types of orthodontic alloy wires (nickel-titanium (NiTi), coated NiTi, stainless steel (SS), Ni-free SS, and cobalt-chromium (CoCr) and titanium-molybdenum (TMA) were immersed into artificial saliva of pH 5.
View Article and Find Full Text PDFPak J Med Sci
October 2024
Afnan A Ben Gassem, BDS, M.Clin Dent, M.Ortho RCS, FHEA, Ph.D. Associate Professor, Department of Preventive Dentistry, College of Dentistry, Taibah University, Almadinah Amunawwara 42353, Saudi Arabia.
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