Effect of surface topography of implant abutments on retention of cemented single-tooth crowns.
作者： Rosemary Sadami Shinkai , Lena Katekawa Adachi , Karen Miashiro , Tomie Nakakuki de Campos , Hideki Yoshida
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摘要: This study investigated whether surface topography affects the retentive strength of cemented full crowns, comparing effects standard machined, sandblasted, and grooved implant abutments. Five metallic crowns per abutment type were cast with zinc phosphate. After 24 hours, specimens submitted to a tensile test. The was affected by topography. sandblasted groups had approximately 2.4 times greater mean uniaxial than machined group (P < .001). abutments similar, despite marked differences in profiles roughness parameters.
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