Conventional and high intensity halogen light effects on water sorption and microhardness of orthodontic adhesives

The Angle Orthodontist
Tancan UysalAbdullah Demir

Abstract

To test the null hypothesis that when the equivalent total light energy is irradiated to three orthodontic adhesive resins, there is no difference between the microhardness and water sorption values regardless of the curing light sources. Samples were divided into six groups according to the combination of three orthodontic adhesives (Kurasper F, Light-Bond, Transbond XT) and two light intensities (quartz tungsten halogen [QTH] and high intensity quartz tungsten halogen [HQTH]). One half of each of the 40 samples of three adhesive pastes was polymerized for 20 seconds by a QTH light source, and the other half was polymerized for 10 seconds by a HQTH light source. Water sorption was determined and Vickers hardness was established with three measurements per sample at the top, center, and bottom. Statistical analysis was performed using two-way analysis of variance (ANOVA) with multiple comparisons (Tukey-HSD). Statistically significant differences were found among all adhesives for water sorption and hardness values cured with QTH and HQTH. The HQTH curing unit resulted in higher values than did the QTH. The highest water sorption values were observed for Kurasper F cured with HQTH and the lowest value was observed for Transbond...Continue Reading

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Dec 15, 2010·Photomedicine and Laser Surgery·Jeong-Kil ParkYong Hoon Kwon
Apr 10, 2010·Dental Materials Journal·Bulent CatalbasBeniz Gunduz
Apr 10, 2010·Dental Materials Journal·Yoshifumi MatsumotoHideo Matsumura
Jul 1, 2014·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Patrícia Alves Ferreira AmatoLídia Parsekian Martins
Apr 5, 2011·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Bayram ÇörekçiEbubekir Toy
Dec 31, 2014·European Journal of Orthodontics·Young Kyung KimTae-Yub Kwon
Aug 4, 2016·Journal of Orthodontics·Ario SantiniMohammed Saeed Aldossary
Jun 12, 2016·Biomedizinische Technik. Biomedical Engineering·Iosif SifakakisTheodore Eliades
Jul 17, 2020·Journal of the World Federation of Orthodontists·Rachel SoylandSharukh S Khajotia

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