Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding

Background. The introduction of Er:YAG laser in dentistry for ablation of hard tissues advocated an alternative method of enamel etching for orthodontics purpose. Materials and Methods. 55 extracted human third molars were inserted in acrylic resin blocks and divided into five groups of 11 teeth. Gr...

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Main Authors: G. Ierardo, G. Di Carlo, F. Petrillo, V. Luzzi, I. Vozza, G. Migliau, R. Kornblit, J. P. Rocca, A. Polimeni
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/935946
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author G. Ierardo
G. Di Carlo
F. Petrillo
V. Luzzi
I. Vozza
G. Migliau
R. Kornblit
J. P. Rocca
A. Polimeni
author_facet G. Ierardo
G. Di Carlo
F. Petrillo
V. Luzzi
I. Vozza
G. Migliau
R. Kornblit
J. P. Rocca
A. Polimeni
author_sort G. Ierardo
collection DOAJ
description Background. The introduction of Er:YAG laser in dentistry for ablation of hard tissues advocated an alternative method of enamel etching for orthodontics purpose. Materials and Methods. 55 extracted human third molars were inserted in acrylic resin blocks and divided into five groups of 11 teeth. Group 1 was treated with 37% orthophosphoric acid for 30 seconds. Group 2 was treated with laser irradiation (Er:YAG Fidelius III, Fotona, Slovenia) at 80 mJ and 4 Hz. Group 3 underwent laser treatment (80 mJ, 4 Hz), followed by 37% orthophosphoric acid for 30 seconds. The teeth in Group 4 were treated with laser at 40 mJ and 10 Hz. The teeth in Group 5 were treated with laser (40 mJ, 10 Hz), followed by 37% orthophosphoric acid for 30 seconds. The adhesive remnant index was determined after debonding. Results. Kruskas-Wallis test showed that location parameters (median and mean) are significantly different between Groups 2 and 4 when compared with control group; on the contrary no significant difference was detected between Groups 3 and 5 with the controls. Conclusion. The use of Er:YAG laser alone, as in Groups 2 and 4, showed no significant advantages over phosphoric acid in the bonding procedure for orthodontics brackets.
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spelling doaj-art-7fc0e49288be4a4499b5f442c1f75b972025-08-20T03:35:20ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/935946935946Er:YAG Laser for Brackets Bonding: A SEM Study after DebondingG. Ierardo0G. Di Carlo1F. Petrillo2V. Luzzi3I. Vozza4G. Migliau5R. Kornblit6J. P. Rocca7A. Polimeni8Department of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyFaculty of Odontology, University Hospital “St. Roch”, University of Nice-Sophia Antipolis, 5 rue Pierre Dévoluy, 06006 Nice, FranceDepartment of Oral and Maxillofacial Science, “Sapienza” University of Rome, Via Caserta 6, 00161 Rome, ItalyBackground. The introduction of Er:YAG laser in dentistry for ablation of hard tissues advocated an alternative method of enamel etching for orthodontics purpose. Materials and Methods. 55 extracted human third molars were inserted in acrylic resin blocks and divided into five groups of 11 teeth. Group 1 was treated with 37% orthophosphoric acid for 30 seconds. Group 2 was treated with laser irradiation (Er:YAG Fidelius III, Fotona, Slovenia) at 80 mJ and 4 Hz. Group 3 underwent laser treatment (80 mJ, 4 Hz), followed by 37% orthophosphoric acid for 30 seconds. The teeth in Group 4 were treated with laser at 40 mJ and 10 Hz. The teeth in Group 5 were treated with laser (40 mJ, 10 Hz), followed by 37% orthophosphoric acid for 30 seconds. The adhesive remnant index was determined after debonding. Results. Kruskas-Wallis test showed that location parameters (median and mean) are significantly different between Groups 2 and 4 when compared with control group; on the contrary no significant difference was detected between Groups 3 and 5 with the controls. Conclusion. The use of Er:YAG laser alone, as in Groups 2 and 4, showed no significant advantages over phosphoric acid in the bonding procedure for orthodontics brackets.http://dx.doi.org/10.1155/2014/935946
spellingShingle G. Ierardo
G. Di Carlo
F. Petrillo
V. Luzzi
I. Vozza
G. Migliau
R. Kornblit
J. P. Rocca
A. Polimeni
Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding
The Scientific World Journal
title Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding
title_full Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding
title_fullStr Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding
title_full_unstemmed Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding
title_short Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding
title_sort er yag laser for brackets bonding a sem study after debonding
url http://dx.doi.org/10.1155/2014/935946
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