- European Journal of Research in Dentistry
- Vol: 4 Issue: 2
- THE EFFECT OF FABRICATION TECHNIQUE AND CEMENT TYPE ON THE RETENTION STRENGTH OF IMPLANT SUPPORTED C...
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 : 12 | Download : 3
Publication Date : 2020-12-31
Article Type : Research
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 (N=30). Then groups divided into three subgroups based on the cement type used (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 (p<0.05). However, the interaction of fabrication technique and cement type did not significantly affect the pull-out strength of groups(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