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Andrea Wichelhaus
Andrea Wichelhaus
Germany
Publications
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Research Article
Laser Conditioning of Enamel with the Erbium YAG and the CO2 Laser.Bond Strength and Surface Structure
Author(s): Lorenz M. Brauchli, Andrea Schramm, Christiane Senn, Judith Ball and Andrea WichelhausLorenz M. Brauchli, Andrea Schramm, Christiane Senn, Judith Ball and Andrea Wichelhaus
Introduction: Acid etching is the standard procedure for enamel conditioning. However it leaves a demineralized surface, which is prone to caries. This is a major disadvantage especially in combination with a fixed orthodontic appliance and reduced oral hygiene. Therefore it was the aim of this study to evaluate the effect of an Erbium:YAG laser as well as a CO2 laser on bond strength and enamel surface structure. Material and methods: 90 freshly extracted bovine incisors were used as substitutes for human enamel. One group of 30 samples was bonded following conventional acid conditioning and served as the control group. The two other groups were conditioned with an Erbium:YAG laser or a CO2 laser. All samples were tested for shear forces with a universal testing machine (Instron 4444). PMMA (p.. View More»
DOI: 10.4172/2161-1122.1000106