THE EFFECT OF FABRICATION TECHNIQUE AND CEMENT TYPE ON THE RETENTION STRENGTH OF IMPLANT SUPPORTED CROWNS

Authors : Ali MUTLU, Mustafa ZORTUK, Caner ÖZTÜRK, Fulya BÜLTE

Pages : 59-63

Doi:10.35333/ERD.2020.267

View : 129 | Download : 17

Publication Date : 2020-12-31

Article Type : Research Paper

Abstract :Objectives: The purpose of this study was to compare the retention strength of implant-supported crowns produced by traditional lost-wax, direct metal laser sintering, CAD/CAM technique by using three different luting cements. Materials and Methods: Ninety standard titanium abutments screwed to analogs then mounted in acrylic resin. Samples divided into three main groups according to the manufacturing technique insert ignore into journalissuearticles values(N=30);. Then groups divided into three subgroups based on the cement type used insert ignore into journalissuearticles values(n=10);. The specimens subjected to the pull-out test by using an universal testing machine at a 1 mm/min crosshead speed. The highest pull-out strength values were recorded in Newton and statistical analyzes were performed by using Two-way ANOVA test and multiple comparison test with Bonferroni correction at a significance level of 0.05. Results: The two-way analysis of variance revealed that the fabrication technique and cement type had a significant effect on pull-out strength insert ignore into journalissuearticles values(p<0.05);. However, the interaction of fabrication technique and cement type did not significantly affect the pull-out strength of groupsinsert ignore into journalissuearticles values(p>0.05);. The highest pull-out strength was found in the laser sintering group, while the conventional technique had the lowest values. Within the subgroups self-adhesive resin cement had the highest pull-out strength, traditional cement subgroup had the lowest. Conclusions: Fabrication technique and cement type have statistically significant effect on the retention of the implant-supported crowns.
Keywords : CAD CAM, Implant supported Crowns, Laser Sintering, Retention Strength