445-nm diode laser-assisted debonding of self-ligating ceramic brackets
| Autor: | Andreas Hellak, Heike Korbmacher-Steiner, Michael Schauseil, Andreas Braun, Alexander Kleye, Steffen Stein |
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| Rok vydání: | 2017 |
| Předmět: |
Molar
Ceramics Enamel paint Scanning electron microscope Bracket Composite number Biomedical Engineering 030206 dentistry Laser law.invention 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine stomatognathic system law Adhesives visual_art visual_art.visual_art_medium Humans Adhesive Irradiation Lasers Semiconductor Composite material Dental Enamel |
| Zdroj: | Biomedical Engineering / Biomedizinische Technik. 62:513-520 |
| ISSN: | 1862-278X 0013-5585 |
| DOI: | 10.1515/bmt-2016-0027 |
| Popis: | Objectives: This study determined the influence of irradiation on aesthetic ceramic brackets with a novel 445-nm diode laser prior to debonding on the bracket failure mode. Materials and methods: Thirty ceramic brackets (In-Ovation® C, GAC) were standard-bonded to the oral and buccal planed and polished enamel surfaces of 15 caries-free human 3rd molars. Prior to study-blinded debonding, the brackets in the laser group were irradiated with the diode laser (SIROLaser Blue®, Sirona), while the irradiation was simulated within the conventional group. To determine the degree of enamel fractures and the adhesive remnant index (ARI) before debonding (T0), after debonding (T1) and after removal of the remaining composite using a rotating fraise (red ring, Comet) (T2), micrographs of the enamel surface at 10-fold and 20-fold magnifications were taken. Additionally, the enamel surface was investigated using seven randomly chosen samples from each group at every time point by SEM at 200-fold and 500-fold magnifications. Results: In the laser group, the ARI-score was statistically significantly reduced (p Conclusion: Irradiation with the novel diode laser prior to debonding of ceramic brackets significantly changes bonding failure in terms of less remaining adhesive. This is of clinical importance as the risk of enamel fractures and chair time can be reduced. |
| Databáze: | OpenAIRE |
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