effect of zinc phosphate and non-eugenol temporary dental cement on different modification of abutment in implant restoration

Fixed implant-dependent prostheses are one of the most common treatments in dentistry. the aim of this study was to test the impact of modifications of the implant-abutment body on the retention rate of the cemented implant prostheses. for this purpose, sixty-four dio implants in 8 groups were used. the retention levels of permanent cements were greater than that of temporary cements. the highest retention rate was reported in the group of permanent cements in sandblast implants and then in double-vented and single-vented abutments and finally in the control group, but in the group of temporary cements, the lowest rate of retention was reported in double-vented and singlevented abutments and finally in the control group. in the group of temporary cements, like permanent partners, sandblast abutments had the highest retention. by creating architectural improvements in the body of the abutments, in addition to getting an appropriate amount of retention close to permanent cement clinically, the benefits of temporary cements such as their higher solubility and the avoidance of the possible dangers of the residual cements could be exploited.