Variations in surface roughness of seven orthodontic archwires: an SEM-profi lometry study
Amini Fariborz, Rakhshan Vahid, Pousti Maryam, Rahimi Hajir, Shariati Mahsa, Aghamohamadi Bahareh,
소속 상세정보
( Amini Fariborz ) - Islamic Azad University Dental Branch Department of Orthodontics and Dentofacial Orthopedics
( Rakhshan Vahid ) - Islamic Azad University Dental Branch Department of Dental Anatomy and Morphology
( Pousti Maryam ) - Islamic Azad University Dental Branch Department of Orthodontics and Dentofacial Orthopedics
( Rahimi Hajir ) - Islamic Azad University Dental Branch Department of Orthodontics and Dentofacial Orthopedics
( Shariati Mahsa ) - Islamic Azad University Dental Branch Department of Orthodontics and Dentofacial Orthopedics
( Aghamohamadi Bahareh ) - Islamic Azad University Dental Branch Department of Orthodontics and Dentofacial Orthopedics
KMID : 0361920120420030129
Abstract
Objective: The purpose of this study was to evaluate the surface roughness (SR) of 2 types of orthodontic archwires made by 4 different manufacturers.
Methods: This in vitro experimental study was conducted on 35 specimens of 7 different orthodontic archwires, namely, 1 nickel-titanium (NiTi) archwire each from the manufacturers American Orthodontics, OrthoTechnology, All- Star Orthodontics, and Smart Technology, and 1 stainless steel (SS) archwire each from the manufacturers American Orthodontics, OrthoTechnology, and All-Star Orthodontics. Aft er analyzing the composition of each wire by energydispersive X-ray analysis, the SR of each wire was determined by scanning electron microscopy (SEM) and surface profi lometry. Data were analyzed using the Kruskal-Wallis and Mann-Whitney U tests (? < 0.05).
Results: The average SR of NiTi wires manufactured by Smart Technology, American Orthodontics, OrthoTechnology, and All-Star Orthodontics were 1,289 ± 915 Ao, 1,378 ± 372 Ao, 2,444 ± 369 Ao, and 5,242 ± 2,832 Ao, respectively. The average SR of SS wires manufactured by All-Star Orthodontics, OrthoTechnology, and American Orthodontics were 710 ± 210 Ao, 1,831 ± 1,156 Ao, and 4,018 ± 2,214 Ao, respectively. Similar to the results of profilometry, the SEM images showed more defects and cracks on the SS wire made by American Orthodontics and the NiTi wire made by All-Star Orthodontics than others.
Conclusions: The NiTi wire manufactured by All-Star Orthodontics and the SS wire made by American Orthodontics were the roughest wires.
키워드
Physical property;Wire;Scanning electron microscopy;Biomaterial science
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