Color compatibility between dental structures and three different types of ceramic systems
Metadatos
Afficher la notice complèteEditorial
Bmc
Materia
Color coordinates Coverage error Dental ceramics Dentine Enamel Spectroradiometer
Date
2021-02-17Referencia bibliográfica
Pop-Ciutrila, I. S., Ghinea, R., Colosi, H. A., Ruiz-López, J., Perez, M. M., Paravina, R. D., & Dudea, D. (2021). Color compatibility between dental structures and three different types of ceramic systems. BMC Oral Health, 21(1), 1-10. [https://doi.org/10.1186/s12903-021-01404-7]
Patrocinador
Consiliul National al Cercetarii Stiintifice (CNCS) Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii (UEFISCDI) PN-III-P1-1.1-PD-2016-0742; Spanish Ministry of Science, Innovation and Universities PGC2018-101904-A-I00; University of Granada A.TEP.280.UGR18Résumé
Background: To assess color compatibility between dental structures (human enamel and dentine) and three different
types of ceramic systems.
Methods: Samples (1 and 2 mm-thick) of extracted tooth (containing dentine and enamel areas) and three ceramic
systems with different shades and opacities (HT–High Translucent, T–Translucent) were prepared for this study: Vita
Suprinity—VS (HT, T; A1, A2, A3, A3.5, B2, C2, D2) (Vita Zahnfabrik); Vita Enamic—VE (HT, T; 1M1, 1M2, 2M2, 3M2) (Vita
Zahnfabrik) and Noritake Super Porcelain EX-3—NKT (A1, A2, A3, A3.5, B2, C2, D2) (Kuraray Noritake Dental). Reflectance
measurements of all samples were performed over black backgrounds using a non-contact spectroradiometer
(SpectraScan PR-670, Photo Research) under a CIE 45°/0° geometry. CIE L*a*b* color parameters were measured
and CIELAB/CIEDE2000 color differences (ΔE00/ΔE*
ab) and corresponding Coverage Error (CE) of ceramic system for
dentine or enamel samples were calculated. Color data was analyzed using one-way ANOVA and post-hoc multiple
comparisons tests. CE values were interpreted by comparisons with available 50:50% acceptability color threshold
(AT) for dentistry.
Results: Statistically significant differences in lightness were found among all ceramic systems and human dentine
(p < 0.001), while no significant differences were registered between enamel and VSHT, T and VEHT. 1 mm dentine
showed no statistical differences with VST and VSHT for a* coordinate, while 2 mm dentine showed no significant
differences (p > 0.05) with VEHT. Thin samples (1 mm) of dentine and enamel showed significant statistical differences
(p < 0.05) for b* coordinate with less translucent materials (NKT, VET and VST). For dentine samples, none of the
ceramic materials provided a CE lower than AT. VSHT provided the best CE for 1 mm-thick (
CE00 = 1.7, CEab
= 1.9) and
for 2 mm-thick (
CE00 = 2.3; CEab
= 2.5) enamel samples.
Conclusions: Color coordinates of evaluated esthetic ceramic systems were statistically different from those of
human dentine in almost all cases. The evaluated ZrO2
lithium silicate glass–ceramic (VS), with its two levels of translucency,
provided lower CE values with human enamel samples while conventional feldspathic ceramic (NKT) and
hybrid ceramic systems (VE) demonstrated a better color compatibility with dentin samples.