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7 September 1994 Sealing quality of composites after Er:YAG laser enamel conditioning
Raimund Hibst, Ulrich Keller D.D.S.
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Proceedings Volume 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV; (1994) https://doi.org/10.1117/12.184907
Event: OE/LASE '94, 1994, Los Angeles, CA, United States
Abstract
Microleakage of composite restorations was examined using an Er:YAG laser and a burr for preparation and bevelling. As can be expected, dye penetration does not depend on the method of preparation, if bevelling is performed conventionally by the burr and acid etching. Replacing the burr by the laser to bevel the margins has no advantage with respect to the microleakage. Further investigations on the basis of a mechanically prepared bevel revealed only minimal dye penetration and high tensile strength for an Er:Y AG laser conditioning of enamel, if an appropriate irradiation pattern is used. From these results the applicability of the Er:Y AG laser alternatively to the acid etching technique can be concluded.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Raimund Hibst and Ulrich Keller D.D.S. "Sealing quality of composites after Er:YAG laser enamel conditioning", Proc. SPIE 2128, Laser Surgery: Advanced Characterization, Therapeutics, and Systems IV, (7 September 1994); https://doi.org/10.1117/12.184907
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KEYWORDS
Composites
Er:YAG lasers
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