Innovations
Vol. 13 (2025), Issue 1, pg(s) 18-21

INNOVATIVE SOLUTIONS

Optimization of femtosecond laser parameters on surface morphology of lithium disilicate glass ceramic

  • 1 University of Zagreb School of Dental Medicine, Zagreb, Croatia
  • 2 University of Zagreb Faculty of Metallurgy, Sisak, Croatia
  • 3 Institute of Physics. Zagreb, Croatia

Abstract

Lithium disilicate glass-ceramic is one of the most commonly used aesthetic materials in fixed prosthetics that requires surface pre-treatment. Recent studies have begun to propose a femtosecond laser for processing to improve surface morphology and microstructure, but without defined parameters. Therefore, the aim of this study is to determine the optimal parameters for the surface morphology of lithium disilicate glass-ceramics. The untreated sample of lithium disilicate glass-ceramic was observed with an optical profilometer. It was then treated with a femtosecond laser, forming squares on the surface of the sample, which were observed with an optical profilometer, and the surface morphology was analysed with a scanning electron microscope. The results show that laser treatment with higher energy densities leads to an increased roughness of the surface.

Keywords

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