2020
DOI: 10.1016/j.ceramint.2020.07.281
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Influence of ns-Nd:YAG laser surface treatment on the tensile bond strength of zirconia to resin-matrix cements

Abstract: The main aim of this study was to assess the effect of ns-Nd:YAG laser structuring over zirconia green compacts on the adhesion of sintered zirconia to resin-matrix cements. Zirconia (3Y-TZP) compacts were divided according to the type of surface modification: GB -alumina grit-blasted sintered specimens; G8L -laser structured zirconia green compacts (square pattern 8 lines); G16L -laser structured zirconia green compacts (square pattern 16 lines); G8L/GB -alumina grit-blasted G8L specimens after sintering. Spe… Show more

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Cited by 14 publications
(19 citation statements)
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“…However, thermal cracks were found to occur on the sidewall of the holes, which may be harmful to the mechanical properties of the material. Therefore, Henriques et al adopted an alternative way of laser surface texturing to overcome this problem [267], i.e. by texturing the green zirconia compact before sintering.…”
Section: J O U R N a L P R E -P R O O Fmentioning
confidence: 99%
“…However, thermal cracks were found to occur on the sidewall of the holes, which may be harmful to the mechanical properties of the material. Therefore, Henriques et al adopted an alternative way of laser surface texturing to overcome this problem [267], i.e. by texturing the green zirconia compact before sintering.…”
Section: J O U R N a L P R E -P R O O Fmentioning
confidence: 99%
“…In this study, the Nd: YAG laser in Q switched dual pulse mode is used because of its short pulse width and high peak power for surface treatment on zirconia core discs with minimal collateral thermal damage, and it produces selective photo thermo-lysis. 20 In this study, the laser surface treatment of zirconia core discs was done after sintering (post-sintered). Spohr et al 21 and Akyil et al 22 studied the effect of this laser on post-sintered zirconia, whereas Kirmali et al 3,23,24 evaluated its effect on pre-sintered zirconia.…”
Section: Discussionmentioning
confidence: 99%
“…Lasers de pulsos ultracurtos têm sido usados em diversos estudos com resultados promissores, tanto para usinagem quanto para micro texturização da 3Y-TZP em seu estado final sinterizado (25,27,(126)(127)(128)(129)(130)(131). De fato, estas avaliações indicam que a duração do pulso desempenha um papel determinante no processo de ablação dos materiais.…”
Section: Lasers De Pulsos Ultracurtosunclassified
“…Como tentativa de minimizar os danos às propriedades mecânicas do material, alguns autores propõem como alternativa, a irradiação da zircônia em seu estado présinterizado (96,128) com o objetivo de texturizar a superfície com laser, uma vez que a etapa de sinterização pode restaurar a totalidade da fase tetragonal da Y-TZP (125).…”
Section: Análise Do Tipo De Falhaunclassified
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