2009
DOI: 10.1089/pho.2008.2293
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Evaluation of the Surface Roughness and Morphologic Features of Y-TZP Ceramics after Different Surface Treatments

Abstract: Higher laser power settings (400 and 600 mJ) cause excessive material deterioration, making them unsuitable as surface treatments for zirconia surfaces. Irradiation with 200 mJ provides mild surface alterations, with intermediary features between the effects of air abrasion and higher laser intensities.

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Cited by 118 publications
(140 citation statements)
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“…In another surface modification experiment by Cavalcanti et al 20) , Er:YAG laser was employed under these operating conditions: energy densities of 200, 400, or 600 mJ emitted at a wavelength of 2.94 µm for 5 seconds at 10 Hz under a 1000-µm-diamter straighttype sapphire tip. Accordingly, the calculated energy density values were 25.48, 50.96, and 76.43 J/cm 2 for 200, 400, and 600 mJ, respectively.…”
Section: Effect On Crack Formationmentioning
confidence: 99%
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“…In another surface modification experiment by Cavalcanti et al 20) , Er:YAG laser was employed under these operating conditions: energy densities of 200, 400, or 600 mJ emitted at a wavelength of 2.94 µm for 5 seconds at 10 Hz under a 1000-µm-diamter straighttype sapphire tip. Accordingly, the calculated energy density values were 25.48, 50.96, and 76.43 J/cm 2 for 200, 400, and 600 mJ, respectively.…”
Section: Effect On Crack Formationmentioning
confidence: 99%
“…Compared to the abovementioned studies 19,20) which employed CO2 and Er:YAG lasers at lower energy density levels for surface modification, Nd:YAG laser emitted at a wavelength of 1.064 µm was employed in this study under these operating conditions: voltage of 230 or 350 V for 5 ms in pulse mode for welding. According to information provided by the manufacturer, the pulse energies for 230 and 350 V irradiations were 3.3 and 12.5 J, respectively.…”
Section: Effect On Crack Formationmentioning
confidence: 99%
“…Um estudo anterior avaliou a topografia superficial de superfícies cerâmicas similares às do presente trabalho através de análises da topografia superficial e de imagens em microscopia eletrônica de varredura (MEV). (13) As imagens deste estudo mostram que a abrasão do ar parece ser um método mais eficiente para modificar as superfícies da zircônia em comparação com a irradiação do laser. (13) A segunda hipótese investigada neste estudo foi de que tipos diferentes de sistema adesivo aplicados sobre as superfícies iriam resultar em diferenças na resistência de união.…”
Section: Discussionunclassified
“…(13) As imagens deste estudo mostram que a abrasão do ar parece ser um método mais eficiente para modificar as superfícies da zircônia em comparação com a irradiação do laser. (13) A segunda hipótese investigada neste estudo foi de que tipos diferentes de sistema adesivo aplicados sobre as superfícies iriam resultar em diferenças na resistência de união. (16) o que indica a necessidade de uso de parâmetros de intensidade mais fracos para evitar estes efeitos.…”
Section: Discussionunclassified
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