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Submitted: 23 Jan 2023
Accepted: 25 Oct 2023
ePublished: 29 Mar 2024
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Avicenna J Dent Res. 2024;16(1): 57-62.
doi: 10.34172/ajdr.1693
  Abstract View: 270
  PDF Download: 223

Brief Report

A Comparison of the Effect of Zirconia Crown on Periodontal Tissues: A Nonrandomized Clinical Trial

Mehdi Taghi Zade 1 ORCID logo, Maryam Tehranchi 2 ORCID logo, Mohammad Amin Bafandeh 3 ORCID logo, Seyed Mohammad Reza Hakimaneh 3 ORCID logo, Yasaman Sherafatmand 4 ORCID logo, Sayed Shojaedin Shayegh 3* ORCID logo

1 Faculty of Dentistry, Shahed University, Tehran, Iran
2 Department of Periodontics, Faculty of Dentistry, Shahed University, Tehran, Iran
3 Department of Prosthodontics, Faculty of Dentistry , Shahed University, Tehran, Iran
4 Department of Dental Biomaterials, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
*Corresponding Author: Sayed Shojaedin Shayegh, Email: shayeghshahed@gmail.com

Abstract

Background: Dental crowns are effective on the gingival tissue around the teeth. However, using zirconia as crowns due to the method and type of material can effectively improve this effect.

Methods: This is a pre-post clinical trial conducted on 35 teeth with metal-ceramic crowns and 35 teeth with zirconia crowns. Teeth were prepared for fabricating metal-ceramic and zirconia crowns. Plaque index (PI), modified gingival index (MGI), pocket probing depth (PPD), papilla bleeding index (PBI), and gingival level (GL) were measured before and six months after getting the dental crown. The data were analyzed using the Mann–Whitney test.

Results: In both groups, the GL remained the same after six months of crown placement (P>0.05). In the metal-ceramic group, the PI decreased significantly (P=0.000), but MGI and PBI significantly increased (P=0.000 and P=0.000, respectively) six months after crown placement. Based on the results, PPD increased significantly only on the midlingual surface (P=0.02). The PI significantly decreased in the zirconia group (P=0.000). Nevertheless, PPD represented no change (P>0.050). The comparison between the two groups six months after crown placement indicated that the PI, MGI, and PBI were significantly higher in the metal-ceramic group (P=0.010, P=0.011, and P=0.044, respectively). The metal-ceramic group showed a significantly greater increase in PPD on the midlingual surface (P=0.043).

Conclusion: Both crown types on teeth could significantly increase the incidence of gingivitis, and compared with zirconia crowns, metal-ceramic crowns demonstrated significantly more inflammation.


Please cite this article as follows: Taghi Zade M, Tehranchi M, Bafandeh MA, Hakimaneh SMR, Sherafatmand Y, Shayegh SS. A comparison of the effect of zirconia crown on periodontal tissues: a nonrandomized clinical trial. Avicenna J Dent Res. 2024; 16(1):57-62. doi:10.34172/ajdr.1693
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