Comparison of Retention of Zirconium Oxide Ceramic Copings with A 24-Degree Convergence Angle with Four Different Types of Cement

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BAJOGHLI FARSHAD; Keymasi Mitra; SALEHI ALI; Shams Samane

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Journal: JOURNAL OF ISFAHAN DENTAL SCHOOL Year:2019 | Volume:15 | Issue:3 Page(s): 246-256

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Title

Comparison of Retention of Zirconium Oxide Ceramic Copings with A 24-Degree Convergence Angle with Four Different Types of Cement

Author(s)

BAJOGHLI FARSHAD | Keymasi Mitra | SALEHI ALI | Shams Samane | Issue Writer Certificate

Keywords

CrownsQ1

Dental cementsQ1

Prosthodontic tooth preparationQ2

RetentionQ1

ZirconiumQ1

Abstract

Introduction: The aim of this study was to compare the Retention of Zirconium oxide ceramic copings at a 24 degree convergence angle with four different types of cement. Materials & Methods: In this experimental study, 40 first and second premolars were randomly divided into four groups (n = 10). After preparing the specimens, zirconia copings were cemented using RelyX Ultimate, Panavia F, resin-modified GI and zinc phosphate cements under a 5-kg force, followed by thermocycling (3000 rounds 5-55° C) for 24 hours in water with pH = 7 and a temperature of 37° C. Then the copings were separated under a tensile strength in an electromechanical universal testing machine at a strain rate of 0. 5 mm/min and their Retention was measured. Data were analyzed using SPSS 25 with Kruskal-Wallis and Mann-Whitney tests. Results: The means and standard deviations of Retention in the RelyX Ultimate, Panavia F, resin-modified GI and zinc phosphate groups were 7. 17 ± 1. 13, 4. 26 ± 0. 37, 2. 72 ± 0. 43 and 2. 3 ± 0. 57 MPa, respectively, with significant differences between the groups (p value < 0. 001). Conclusion: Based on the results of this study, the Retention of ceramic copings of Zirconium oxide at a 24-degree convergence angle was different in terms of the cement type, with RelyX Ultimate cement exhibiting the highest Retention.

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APA: Copy

BAJOGHLI, FARSHAD, Keymasi, Mitra, SALEHI, ALI, & Shams, Samane. (2019). Comparison of Retention of Zirconium Oxide Ceramic Copings with A 24-Degree Convergence Angle with Four Different Types of Cement. JOURNAL OF ISFAHAN DENTAL SCHOOL, 15(3 ), 246-256. SID. https://sid.ir/paper/126567/en

Vancouver: Copy

BAJOGHLI FARSHAD, Keymasi Mitra, SALEHI ALI, Shams Samane. Comparison of Retention of Zirconium Oxide Ceramic Copings with A 24-Degree Convergence Angle with Four Different Types of Cement. JOURNAL OF ISFAHAN DENTAL SCHOOL[Internet]. 2019;15(3 ):246-256. Available from: https://sid.ir/paper/126567/en

IEEE: Copy

FARSHAD BAJOGHLI, Mitra Keymasi, ALI SALEHI, and Samane Shams, “Comparison of Retention of Zirconium Oxide Ceramic Copings with A 24-Degree Convergence Angle with Four Different Types of Cement,” JOURNAL OF ISFAHAN DENTAL SCHOOL, vol. 15, no. 3 , pp. 246–256, 2019, [Online]. Available: https://sid.ir/paper/126567/en

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