Effect of Cement and Abutment Colors on Esthetic Outcomes of Highly Translucent Multilayered Monolithic Zirconia crowns

Authors

  • Kwansiri Plengsombut Ramkhamhaeng hospital, 436, Ramkhamhaeng Rd., Hua Mak, Bangkok 10240, Thailand.
  • Mali Palanuwech Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, 114 Sukhumvit 23 Rd. Wattana, Bangkok, 10110, Thailand.

Keywords:

Abutment color, Cement color, Color difference, Esthetics, Masking ability

Abstract

Objective: To identify appropriate abutment–cement combinations for color matching of 1.2 mm-thick, A2 shade, highly translucent multilayered monolithic zirconia (HTMMZ) crowns. Material and Methods: Abutments of A2 composite resin, A4 composite resin, and metal were fabricated along with seven 1.2 mm-thick, A2 shade HTMMZ crowns. Three try-in pastes (clear, universal, and opaque) were used as luting agents. Abutment-cement combination specimens were prepared by luting each crown on each abutment type using one of each luting agents. All specimens were assessed using spectrophotometry and then compared with the Katana A2 shade tab (control) to establish the color difference. A color difference of < 2.7 was necessary to be considered clinically acceptable. The data obtained were statistically analyzed using two-way ANOVA followed by post hoc Tukey’s test (α = 0.05). Results: Abutment and cement colors and their interaction affected ΔEab (p < 0.05). The A2 abutment-clear cement, A2 abutment-universal cement, A4 abutment-clear cement, and A4 abutment-universal cement groups showed the lowest values almost reached an acceptable color match. Unacceptable color matches were observed in all the cement and abutment groups. Conclusions: For the A2 and A4 abutment, crowns luted with universal cement almost reached a clinically acceptable color match. And for the silver-palladium metal abutment, crowns luted with opaque cement showed lower ΔEab value compared to clear and universal cement.

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Author Biography

Mali Palanuwech, Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, 114 Sukhumvit 23 Rd. Wattana, Bangkok, 10110, Thailand.

Corresponding author

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Published

2024-02-22

How to Cite

1.
Plengsombut K, Palanuwech M. Effect of Cement and Abutment Colors on Esthetic Outcomes of Highly Translucent Multilayered Monolithic Zirconia crowns. SWU Dent J. [Internet]. 2024 Feb. 22 [cited 2024 May 28];17(1):23-36. Available from: https://ejournals.swu.ac.th/index.php/swudentj/article/view/15988

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บทวิทยาการ (Original articles)