Effect of light-tip distance on the shear bond strengths of resin-modified glass ionomer cured with high-intensity halogen, light-emitting diode, and plasma arc lights

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
M F SfondriniPaul-Georg Jost-Brinkmann

Abstract

The purpose of this study was to assess the effect of light-tip distance on the shear bond strength and the failure site of brackets cured with 3 light-curing units (high-intensity halogen, light-emitting diode, and plasma arc). One hundred thirty-five bovine mandibular permanent incisors were randomly allocated to 9 groups of 15 specimens each. Stainless steel brackets (Victory Series, Unitek/3M, Monrovia, Calif) were bonded with a resin-modified glass-ionomer (Fuji Ortho LC, GC Europe, Leuven, Belgium) to the teeth, and each curing light was tested at 3 distances from the bracket: 0, 3, and 6 mm. After bonding, all samples were stored in distilled water at room temperature for 24 hours and subsequently tested for shear bond strength. When the 3 light-curing units were compared at a light-tip distance of 0mm, they showed no significantly different shear bond strengths. At a light-tip distance of 3 mm, no significant differences were found between the halogen and plasma arc lights, but both lights showed significantly higher shear bond strengths than the light-emitting diode light. At a light-tip distance of 6 mm, no significant differences were found between the halogen and light-emitting diode lights, but both showed signific...Continue Reading

References

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Citations

Jun 19, 2010·European Journal of Orthodontics·Carine Maccarini Dall'IgnaEduardo Gonçalves Mota
Feb 5, 2011·European Journal of Orthodontics·Owais Khalid DurraniNoeen Arshad
Mar 26, 2013·PloS One·Stefan RüttermannRalf Janda
Feb 17, 2009·The Angle Orthodontist·Clayton Glen SpencerAllen L Honeyman
Feb 27, 2008·The Angle Orthodontist·Davide MirabellaGiuseppe Siciliani
Jun 23, 2009·The Angle Orthodontist·Mona A Montasser, James L Drummond
Oct 4, 2013·Dental Materials Journal·Masahiro IijimaItaru Mizoguchi
Dec 19, 2009·Dental Materials Journal·Soo-Byung ParkYong Hoon Kwon
Aug 2, 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·Catherine SunithaArun B Chitharanjan
Jan 1, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·K TaoufikD Kletsas
Jul 14, 2007·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Yong-Kyu Lim, Yong-Keun Lee
Nov 15, 2013·Korean Journal of Orthodontics·Jang-Won SungHee-Moon Kyung
Jun 1, 2018·BioMed Research International·Maria Francesca SfondriniAndrea Scribante

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