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Journal of Biomedical Optics • Open Access

Femtosecond laser etching of dental enamel for bracket bonding
Author(s): Ayse S. Kabas; Tansu Ersoy; Murat Gülsoy; Selcuk Akturk

Paper Abstract

The aim is to investigate femtosecond laser ablation as an alternative method for enamel etching used before bonding orthodontic brackets. A focused laser beam is scanned over enamel within the area of bonding in a saw tooth pattern with a varying number of lines. After patterning, ceramic brackets are bonded and bonding quality of the proposed technique is measured by a universal testing machine. The results are compared to the conventional acid etching method. Results show that bonding strength is a function of laser average power and the density of the ablated lines. Intrapulpal temperature changes are also recorded and observed minimal effects are observed. Enamel surface of the samples is investigated microscopically and no signs of damage or cracking are observed. In conclusion, femtosecond laser exposure on enamel surface yields controllable patterns that provide efficient bonding strength with less removal of dental tissue than conventional acid-etching technique.

Paper Details

Date Published: 17 September 2013
PDF: 8 pages
J. Biomed. Opt. 18(9) 098003 doi: 10.1117/1.JBO.18.9.098003
Published in: Journal of Biomedical Optics Volume 18, Issue 9
Show Author Affiliations
Ayse S. Kabas, Bogaziçi Üniv. (Turkey)
Tansu Ersoy, Istanbul Technical Univ. (Turkey)
Murat Gülsoy, Bogaziçi Üniv. (Turkey)
Selcuk Akturk, Istanbul Technical Univ. (Turkey)

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