The Effect of Brand, Thickness, and Abutment Substrate on the Masking Ability of Monolithic Zirconia Cera
https://doi.org/10.21315/aos2024.1901.OA02
- Author:
Mohd Zulkifli Kassim
1
;
Nor Wati Nur Atikah Mustafa
2
;
Rohana Ahmad
2
;
Rohana Ahmad
3
;
Nadim Z Baba
4
Author Information
1. Department of Restorative Dentistry, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
2. Centre of Studies for Restorative Dentistry, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh Campus, Jalan Hospital, 47000 Sungai Buloh, Selangor, Malaysia
3. CIntegrative Pharmacogenomic Institute, Universiti Teknologi MARA, Puncak Alam Campus, 42300 Puncak Alam, Selangor, Malaysia
4. Advanced Education Program in Implant Dentistry, School of Dentistry, 11092 Anderson Street, Loma Linda, 92350 California, USA
- Publication Type:Journal Article
- Keywords:
Aesthetics;
discolouration;
monolithic zirconia;
masking ability;
translucency
- From:
Archives of Orofacial Sciences
2024;19(1):19-30
- CountryMalaysia
- Language:English
-
Abstract:
The Effect of Brand, Thickness, and Abutment Substrate on the Masking Ability of Monolithic Zirconia Cera:The goal of the present study was to determine the minimum thickness of monolithic zirconia required
to achieve an acceptable masking ability and to examine how brand, thickness, and abutment substrate
influenced that masking ability (∆E). Seventy-two A2-shade monolithic zirconia disc specimens in
various thicknesses (1.0, 1.5, and 2.0 mm) were fabricated using three brands: Nacera® Pearl 1, DD
cubeX2 and XTCERA TT. A spectrophotometer was used to determine the CIELab values of the
specimens, which were placed on a D4-shade resin composite and white acrylic (control) substrates. The
∆E was calculated and compared with the acceptable (AT = 5.5) and perceptible (PT = 2.6) tolerance
thresholds. Further investigation was conducted on 72-disc specimens from the monolithic zirconia
brand with the best masking ability on D3-shade resin composite and semi-precious alloy. Using two-way ANOVA, the interaction of thickness, brand, and abutment substrate on ∆E was investigated. Nacera® Pearl 1 at 1.5 mm thickness was sufficient to achieve AT on a D4-shade resin composite substrate, whereas 2.0 mm of DD cubeX2 and XTCERA TT were required. Nacera® Pearl 1 further testing on two other substrates requires thicknesses of 1.5 mm and 1.0 mm, respectively. Only the Nacera® Pearl 1 group achieved PT on D3- and D4-shade resin composite (2.0 mm) and semi-precious alloy substrates (1.5 mm). Brand, thickness, and abutment substrate influenced the ∆E (p < 0.001). To achieve an acceptable masking ability, the minimum thickness of monolithic zirconia tested on D3- and D4-shade resin composite and semi-precious alloy should be around 1.5 mm to 2.0 mm.
- Full text:202606031648465920The Effect of Brand, Thickness, and Abutment Substrate on the Masking Ability of Monolithic Zirconia Cera.pdf
