Aim: The aim of this study was to evaluate the kinetic frictional properties of colored titanium molybdenum alloy (TMA) archwires (purple-coated TMA and honey dew-coated TMA) and the regular TMA archwires.
Materials And Methods: The experiment comprised of three groups, Group I - Regular TMA archwires, Group II - Purple-coated TMA archwires, Group III - Honey dew-coated TMA wires involving 21 samples each that were evaluated for their frictional properties using Instron Universal Testing Machine.
Results: The results were subjected to statistical analysis using analysis of variance wherein Group I Regular TMA wires revealed mean kinetic frictional value of 8.236 N and a standard deviation of 0.4038 N, while Group II (purple-coated TMA wires) showed a mean value of 5.297 N, standard deviation of 0.3128 N and Group III (honey dew-coated TMA wires) showed a mean value of 4.206 N and a standard deviation of 0.5353 N.
Conclusion: The kinetic frictional values are higher for regular TMA wire exhibiting superior characteristic of color-coated TMA. Wires exhibiting superior characteristics are color-coated TMA wires, especially honey dew-coated TMA wires over the regular and purple-coated TMA wires. These superior properties of newly introduced wires can be considered for its application in both details friction and frictionless mechanics in retraction phase of fixed orthodontic treatment.
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http://dx.doi.org/10.4103/ijdr.IJDR_817_16 | DOI Listing |
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 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 PDFJ Oral Biol Craniofac Res
July 2024
Department of Orthodontics and Dentofacial Orthopaedics, Army College of Dental Sciences, Secunderabad, Telangana, 500087, India.
Objective: To compare torque expression characteristics between rectangular slot (0.022″ x 0.028″) Damon Q passive self-ligating brackets (Ormco, Glendora, Calif) and square slot (0.
View Article and Find Full Text PDFJ Pharm Bioallied Sci
February 2024
Department of Orthodontics and Dentofacial Orthopaedics, Dr. Hedgewar Smruti Rugna Seva Mandal's Dental College and Hospital, Hingoli, Maharashtra, India.
Introduction: The esthetic during the various orthodontic treatments has led to the invention of the brackets. When different ceramic brackets and archwires are used, the different frictional forces may result in the different outputs. Hence, in the present study, we evaluated and compared the frictional resistance between eight standard monocrystalline ceramic bracket models and each of the archwires of four different alloys.
View Article and Find Full Text PDFAm J Orthod Dentofacial Orthop
May 2024
Department of Preventive and Restorative Dentistry, Dental School of Araçatuba, São Paulo State University, Araçatuba, São Paulo, Brazil.
Introduction: This study aimed to investigate the surface free energy and surface roughness (SR) of metallic alloys under the influence of acid solutions.
Methods: The experiment involved the use of 270 rectangular wire samples measuring 0.019 × 0.
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