Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Jan;36(1):140-145.
doi: 10.1016/j.sdentj.2023.10.019. Epub 2023 Nov 2.

Impact of restoration thickness and tooth shade background on the translucency of zirconia laminate veneers: An in vitro comparative study

Carlos A Jurado  1 , Abdulaziz Alhotan  2 , Salwa Mekled  3 , Seok-Hwan Cho  1 , Kelvin I Afrashtehfar  4   5   6   7
Affiliations

Impact of restoration thickness and tooth shade background on the translucency of zirconia laminate veneers: An in vitro comparative study

Carlos A Jurado et al. Saudi Dent J. 2024 Jan.

Abstract

Purpose: Our in vitro comparative study aimed to investigate the impact of thickness and tooth shade background on the translucency of highly translucent zirconia veneers.

Materials and methods: A total of 75 5Y-TZP zirconia veneers of shade A1 were fabricated with thicknesses of 0.50 mm (n = 25), 0.75 mm (n = 25), and 1.0 mm (n = 25). The translucencies were measured on composite resin teeth with shades A1, A2, A3, A3.5, and A4 using a digital color imaging spectrophotometer. Data were analyzed using ANOVA and post hoc Tukey's test (p < 0.05).

Results: The translucency values were optimal for the veneers placed over the substrate teeth with shades A1 and A2, regardless of the veneer thickness. Additionally, veneers with a thickness of 0.50 mm exhibited significantly higher translucency than those with thicknesses of 0.75 mm and 1.0 mm.

Conclusions: Our study demonstrated that the translucency of the highly translucent zirconia veneers was influenced by both veneer thickness and tooth shade background. The optimal veneer thickness for achieving the highest translucency was 0.50 for the veneers with A1 and A2 shades placed over the substrate teeth.

Clinical relevance: The optimal thickness for achieving the highest translucency of the highly translucent zirconia laminate veneers was 0.50 mm for the veneers with A1 and A2 shades placed over the substrate teeth. Clinicians and dental technicians could consider this when selecting materials for aesthetic restorations.

Keywords: Dental esthetics; Dental veneers; Spectrophotometry; Tooth shade; Translucency; Zirconium dioxide.

PubMed Disclaimer

Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

Fig. 1
Fig. 1
Spectrophotometer captured images showing the translucency of zirconia veneers.
Fig. 2
Fig. 2
Delta E values across all background tooth shades (line graph).
Fig. 3
Fig. 3
Delta L values across all background tooth shades (line graph).
See this image and copyright information in PMC

References

    1. Afrashtehfar K.I. Increased Predictability in Tooth Shade-Matching. Oral. Health. 2013;15:44–50.
    1. Afrashtehfar K.I. Indirect adhesive controversies. Br. Dent. J. 2021;231:602. - PubMed
    1. Afrashtehfar K.I., Assery M.K. Five considerations in cosmetic and esthetic dentistry. J. n. J. Dent. Assoc. 2014;85:14–15. - PubMed
    1. Afrashtehfar K.I., Pecho O.E., El-Mowafy O. How do I manage a patient with a fractured porcelain veneer? J. Can. Dent. Assoc. 2015;81 - PubMed
    1. Alhammadi M.S., Al-Mashraqi A.A., Alnami R.H., et al. Accuracy and Reproducibility of Facial Measurements of Digital Photographs and Wrapped Cone Beam Computed Tomography (CBCT) Photographs. Diagnostics (basel). 2021;11:757. doi: 10.3390/diagnostics11050757. - DOI - PMC - PubMed