FEITOSA, SABRINA A.CAMPOS, FERNANDAYOSHITO, WALTER K.LAZAR, DOLORES R.R.USSUI, VALTERVALANDRO, LUIZ F.BOTTINO, MARCO A.BOTTINO, MARCO C.2018-12-032018-12-032018FEITOSA, SABRINA A.; CAMPOS, FERNANDA; YOSHITO, WALTER K.; LAZAR, DOLORES R.R.; USSUI, VALTER; VALANDRO, LUIZ F.; BOTTINO, MARCO A.; BOTTINO, MARCO C. Effect of the bonding strategy on the tensile retention of full-contour zirconia crowns. <b>International Journal of Adhesion and Adhesives</b>, v. 85, p. 106-112, 2018. DOI: <a href="https://dx.doi.org/10.1016/j.ijadhadh.2018.06.006">10.1016/j.ijadhadh.2018.06.006</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29303.0143-7496http://repositorio.ipen.br/handle/123456789/29303This study evaluated the effect of distinct bonding strategies on the retention of full-contour zirconia ceramic (YTZP, FCZ) crowns, and it characterized some physicochemical and mechanical properties of FCZ ceramic and its corresponding glazing system. To evaluate retention strength, dies were made with a dentin-analogue material to simulate a prepared tooth. FCZ crowns were manufactured using CAD-CAM technology and allocated into groups according to the bonding strategy: no ceramic treatment (PF – Panavia F cementation), glaze (GL), tribochemical silica coating (CJ), CJ + GL, and piranha solution followed by glaze (PS + GL). The specimens were subjected to thermocycling and storage in distilled water for 100 days before the retention tests. FCZ presented a porosity volume fraction of 0.2%, an apparent density of 6.06 g/cm3, Vickers hardness of 12.4±0.07 GPa, and fracture toughness of 5.54±0.24 MPam1/2. SEM revealed a homogeneous microstructure composed of submicron-sized grains. XRD identified mainly zirconia's tetragonal phase. Glaze powder morphology was observed to be irregular, with a nanometric particle size, and a diffraction pattern characteristic of an amorphous material with several peaks of leucite. The PF and GL groups had higher retention values. The majority of the groups presented pre-test bonding failures, and two catastrophic failures of the FCZ-crown (GL and PF groups) were noted. The use of an MDP-containing resin cement or glaze application might improve retention of the FCZ crowns.106-112openAccesszirconiumadhesionsurfacesyttrium oxidestetragonal latticespolycrystalsresinscementsretentiontensile propertiesArtigo de periódico8510.1016/j.ijadhadh.2018.06.006aguardandohttps://orcid.org/0000-0001-7384-304X57.3069.33