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Efficiency of dry versus wet Er,Cr:YSGG laser debonding of lithium disilicate veneers using different power outputs.
J Prosthet Dent
January 2025
Associate Professor, Department of Fixed Prosthodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt; Associate Professor, Department of Fixed Prosthodontics, School of Dentistry, Newgiza University, Giza, Egypt; and Visiting Researcher, Section Medical Materials Science & Technology, University Hospital Tübingen, Tübingen, Germany. Electronic address:
Statement Of Problem: Since water is the chromophore for the erbium, chromium-yttrium scandium gallium garnet (Er,Cr:YSGG) laser, the laser energy reaching the restoration decreases as part of it is absorbed by water. Theoretically, reducing the water or implementing dry debonding could reduce the energy consumed by water, increasing laser efficiency. Studies on whether it is suitable for removing veneers without using coolant are lacking.
View Article and Find Full Text PDFTemperature changes in the pulp chamber and bleaching gel during tooth bleaching assisted by diode laser (445 nm) using different power settings.
Lasers Med Sci
September 2023
Department of Operative Dentistry, Faculty of Dentistry, School of Health Sciences, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
The aim of this in vitro study was to investigate the safety of using blue diode laser (445 nm) for tooth bleaching with regard to intrapulpal temperature increase operating at different average power and time settings. Fifty human mandibular incisors (n = 10) were used for evaluating temperature rise inside the pulp chamber and in the bleaching gel during laser-assisted tooth bleaching. The change in temperature was recorded using K thermocouples for the five experimental groups (without laser, 0.
View Article and Find Full Text PDFDebonding of LDSVs utilising Er,Cr:YSGG laser irradiation with fractional technique: an in vitro study.
Aust Dent J
June 2023
Department of Biomedical Applications, Institute of Laser for Postgraduate Studies, University of Baghdad, Baghdad, Iraq.
Background: The removal of porcelain laminate veneers with rotary instruments could be accompanied by microfractures because differentiation of the veneer from the dental structure and resin cement is not a highly selective procedure. This can lead to scratches and overheating of the enamel and patient discomfort. Therefore, this in vitro research aimed to examine the effectiveness of the 2790 nm Er,Cr:YSGG laser utilizing a fractional technique to debond lithium disilicate veneer.
View Article and Find Full Text PDFThe influence of pulse duration and exposure time of Er,Cr:YSGG laser on lithium disilicate laminate debonding, an study.
Heliyon
March 2023
Orofacial Pain, School of Dentistry, University of California Los Angeles UCLA. 10833 Le Conte Ave, CHS 10-157, Los Angeles, CA 90095, USA.
Problem Statement: Grinding restorations, such as veneers, with rotary instruments, is the conventional removal approach. It may be accompanied by micro-fractures that affect the adjacent healthy dental structures. Differentiation of the veneer from the dental structure, as well as the resin cement, is not a highly selective procedure when rotary instruments are used.
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