Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9992812 | American Journal of Orthodontics and Dentofacial Orthopedics | 2005 | 4 Pages |
Abstract
Introduction: This study assessed the effect of different light sources and light guides on the shear bond strength and failure site of orthodontic brackets bonded with 2 adhesive systems (Quick Cure [Reliance Orthodontic Products, Itasca, Ill] and Transbond XT [3M/Unitek, Monrovia, Calif]). Methods: Ninety bovine permanent mandibular incisors were randomly divided into 6 groups according to the adhesive system and light-curing procedure used. Each group consisted of 15 specimens; 90 stainless steel brackets were bonded to the teeth. Each adhesive system was light-cured with a halogen light (Ortholux XT, 3M/Unitek) for 20 seconds and the conventional light guide as controls. The remaining groups were cured with a halogen light (Ortho 2000 [Reliance Orthodontic Products, Itasca, Ill]) and a Power Slot light guide (Reliance Orthodontic Products) for 6 and 10 seconds. After bonding, all samples were stored in distilled water for 24 hours and then tested in a shear mode on a universal testing machine. Results: No significant differences in terms of bond strength values were found among the 6 groups, but significant differences in debond locations were found among the 6 groups tested. Conclusions: Power Slot light guides can be recommended as advantageous alternatives for fast-curing composite resins during orthodontic bonding.
Related Topics
Health Sciences
Medicine and Dentistry
Dentistry, Oral Surgery and Medicine
Authors
Vittorio Cacciafesta, Maria Francesca Sfondrini, Erica Barina, Andrea Scribante, Francesco Garino, Catherine Klersy,