European Oral Research

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DOI :10.26650/eor.2023978293   IUP :10.26650/eor.2023978293    Full Text (PDF)

Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process

Yeşim Ölçer Us, Betül Tuncelli

Purpose

The aim of this in-vitro study was to evaluate the effect of thermal changes to shear bond strength during the firing process of veneering porcelain on a zirconia framework.

Materials and Methods

Single yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) framework ceramic (Kavo Dental GmbH) and three different types of veneering ceramics (IPS e.max Ceram, Vita VM9, and GC Initial Zr-FS) were used. One-hundred-twenty standard disc-shaped samples were prepared from zirconia blocks by using a CAD/CAM system (Kavo Everest). Four different cooling processes (maximum, 25°C/min, 50°C/min and 75°C/min) were applied to the veneering ceramics and the shear bond strength (SBS) test was performed. Ceramic surfaces were investigated by using scanning electron microscopeic (SEM). The possible occurrence of a t–m transformation of zirconia was evaluated by X-Ray Diffraction (XRD). Two-way analysis of variance, Bonferroni correction and paired comparisons were used for statistical analysis.

Results

The main effects of veneering ceramics on shear bond strength were found to be significant (p=0.042). The mean shear bond strength values differ according to the cooling process (p<0.001). The monoclinic phase ratio increased in groups with fast cooling process.

Conclusion

The thermal changes during the firing process of veneering porcelain on a zirconia framework influenced the shear bond strength of the all-ceramic bilayered system. A slow cooling process provided higher strength for bilayer ceramic samples.

Keywords: Zirconia, Veneering ceramic, CAD/CAM, Bond strength, Cooling process

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Citations

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APA

Ölçer Us, Y., & Tuncelli, B. (2023). Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process. European Oral Research, 57(2), 108-114. https://doi.org/10.26650/eor.2023978293


AMA

Ölçer Us Y, Tuncelli B. Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process. European Oral Research. 2023;57(2):108-114. https://doi.org/10.26650/eor.2023978293


ABNT

Ölçer Us, Y.; Tuncelli, B. Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process. European Oral Research, [Publisher Location], v. 57, n. 2, p. 108-114, 2023.


Chicago: Author-Date Style

Ölçer Us, Yeşim, and Betül Tuncelli. 2023. “Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process.” European Oral Research 57, no. 2: 108-114. https://doi.org/10.26650/eor.2023978293


Chicago: Humanities Style

Ölçer Us, Yeşim, and Betül Tuncelli. “Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process.” European Oral Research 57, no. 2 (May. 2024): 108-114. https://doi.org/10.26650/eor.2023978293


Harvard: Australian Style

Ölçer Us, Y & Tuncelli, B 2023, 'Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process', European Oral Research, vol. 57, no. 2, pp. 108-114, viewed 12 May. 2024, https://doi.org/10.26650/eor.2023978293


Harvard: Author-Date Style

Ölçer Us, Y. and Tuncelli, B. (2023) ‘Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process’, European Oral Research, 57(2), pp. 108-114. https://doi.org/10.26650/eor.2023978293 (12 May. 2024).


MLA

Ölçer Us, Yeşim, and Betül Tuncelli. “Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process.” European Oral Research, vol. 57, no. 2, 2023, pp. 108-114. [Database Container], https://doi.org/10.26650/eor.2023978293


Vancouver

Ölçer Us Y, Tuncelli B. Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process. European Oral Research [Internet]. 12 May. 2024 [cited 12 May. 2024];57(2):108-114. Available from: https://doi.org/10.26650/eor.2023978293 doi: 10.26650/eor.2023978293


ISNAD

Ölçer Us, Yeşim - Tuncelli, Betül. “Evaluation of the effects of thermal changes on the bond strength between zirconia framework and veneering ceramic during the firing process”. European Oral Research 57/2 (May. 2024): 108-114. https://doi.org/10.26650/eor.2023978293



TIMELINE


Submitted03.08.2021
First Revision09.09.2022
Accepted10.11.2022
Published Online05.06.2023

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