Investigation of Fracture Resistance of Zirconia Restorations After Different Surface Treatments

Year 2021, Volume: 11 Issue: 2, 320 - 323, 30.06.2021

Türker Akar , Hakan Akin

https://doi.org/10.33808/clinexphealthsci.796603

Abstract

Objective: The purpose of this study was to investigate the effects of the different surface treatments on fracture strength of the zirconia-based ceramic restorations.

Methods: Each of 120 dental implant abutments and analogs were used in the present study. Zirconia core materials were manufactured on dental implants by using CAD/CAM device and they were randomly divided into 6 groups (n=20) according to surface pretreatments; control group (Group C), airborne-particle abrasion (Group AA), silica-coating (Group SC), Nd:YAG laser (Group N), bur-cut from cervical region (Group BC), and bur-cut on the functional tubercule (Group BT). Cementation was succeeded with two different types of cements including a dual-cure resin-cement and a glass ionomer cement. The obtained data were evaluated statistically using one-way ANOVA and Tukey tests (p=0.05).

Results: No statistically significant difference was found between the groups (p>0.05). Similarly, no statistically significant difference was found between the resin cement and glass ionomer groups with respect to fracture strength values (p>0.05).

Conclusion: Within the limitations of the present study, surface treatments and cement have no effect on the flexural strength of zirconia ceramic crowns.

Keywords

dental lasers, fracture strenght test, surface treatments, CAD/CAM, dental implants

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