Comparison of the Effects of Surface Treatments on Roughness of Two Ceramic Systems

Abstract

Groups SB and SB-L had rougher surfaces than the groups subjected to the other surface treatment methods. There was no significant difference in surface roughness between the HF acid etching, Er:YAG laser irradiation, and HF and Er:YAG (p<0 .05).

Evaluation of Different Types of Lasers in Surface Conditioning of Porcelains: A Review Article

“…Er:YAG lasers had conflicting results on feldspathic porcelains. Kara et al 35 and Dilber et al 38 demonstrated the efficacy of this laser at 10 W power and 20 Hz frequency for surface etching; the results showed the same level of surface modification as HF. Erdur et al 23 used Er:YAG with an output power of 1-6 W and frequency of 20 Hz and reported non-acceptable SBS; the surface roughness evaluated by electronic microscope was not acceptable as well.…”

Evaluation of Surface Topography of Zirconia Ceramic After Er:YAG Laser Etching

“…The effects of laser treatment on oxide ceramics are very different than those on lithia-based ceramics, because of the presence of a glass phase in the latter. 1,20 Also, there are studies evaluating the changes in pulse energy, [1][2][3][4][5][6]9,10,18,19 but the importance of pulse length in treating zirconia is not investigated in the literature.…”

Effect of Er:YAG Laser Pulse Duration on Shear Bond Strength of Metal Brackets Bonded to a Porcelain Surface

“…Therefore, the null hypothesis that SBSs obtained in the sandblasted group would be similar to those obtained in Er:YAG laser groups (in SP or SSP modes) was rejected. Dilber et al 26 have reported lower surface roughness values in a sandblasting + Er:YAG laser group as compared with a sandblasting alone group, for feldspathic ceramic discs. Additionally, Shiu et al 27 have suggested that surface treatment of feldspathic ceramics with sandblasting yielded the highest bond strength when compared with sandblasted + Er:YAG laser treatment and Er:YAG laser treatment alone groups.…”

“…20,22,23 However, there is little information available regarding the effects of Er-YAG laser pulse duration on the feldspathic porcelain surface. [26][27][28] Dilber et al 26 stated that sandblasting the feldspathic porcelain caused more increased irregularities when compared with the Er:YAG laser group. Similarly, Shiu et al 27 obtained the highest bond strength from Al 2 O 3 group when compared with nine different surface treatment methods including Er;YAG laser and THE Al 2 O 3 + Er:YAG laser group.…”