Restorative Dentistry & Endodontics

Luciano de Souza Gonçalves

2 Articles

Spectrophotometric evaluation of restorative composite shades and their match with a classical shade guide: Rafael Melara, Luciana Mendonça, Fábio Herrmann Coelho-de-Souza, Juliana Nunes Rolla, Luciano de Souza Gonçalves; Restor Dent Endod 2021;46(4):e60. Published online November 12, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e60

Objectives

The aim of this study was to verify the match between 5 shades of composites from different manufacturers with a shade guide and among the systems using a portable spectrophotometer.

Materials and Methods

Shade measurements were performed on specimens of Z350 XT (3M ESPE), Charisma Diamond (Heraeus Kulzer GmbH), Esthet X-HD (Dentsply Caulk), and Empress Direct (Ivoclar-Vivadent) for shades A1, A2, A3, B1, and C3 using a Vita Easyshade spectrophotometer (Vita Zahnfabrik) against a white background. Corresponding shades of Vitapan Classical (Vita Zahnfabrik) guide were measured likewise and shade variation (ΔE) was calculated based on International Commission on Illumination L*a*b* parameters. The ΔE of the composites in each shade was compared by one-way analysis of variance and Tukey's post hoc test (α = 0.05).

Results

All composites presented ΔE > 3.7 compared with the shade guide. Variation in shades A3, B1, and C3 was significantly different for all composites. ΔE of Z350 XT was significantly lower for A1 than for the other shades, whereas ΔE of Z350 XT and Charisma Diamond were significantly lower for A2 than for the other shades.

Conclusions

No composite shade matched with the shade guide. Equivalent shades of the restorative composite from different manufacturers may show clinically noticeable ΔE.

Citations

Citations to this article as recorded by

Evaluation of the roughness, color match, and color stability of two monochromatic composite resins: a randomized controlled laboratory study
Iara Campos Santana, Sabrina Sobral de Oliveira, Karolina Pena Botelho, Renan Leonardi de Oliveira Rigotti, José Cristiano Ramos Glória, Adriana Maria Botelho, Dhelfeson Willya Douglas-de-Oliveira, Karine Taís Aguiar Tavano
BMC Oral Health.2025;[Epub] CrossRef
Instrumental and Visual Evaluation of the Chameleon Effect of Single-shaded Composite Resins
RM Adiguzel, LK Kose, N Arhun
Operative Dentistry.2024; 49(4): 432. CrossRef
Color Stability of Bioactive Restorative Material vs Nanohybrid Resin Composite: An In Vitro Study
Esraa H Saber, Mohsen H Abielhassan, Yasser A Abed, Shereen E Fahim
The Journal of Contemporary Dental Practice.2024; 25(3): 221. CrossRef
A system for reliable composite shade matching: Custom shade tabs and an intra‐oral mockup
Adamo Notarantonio, Amanda Seay
Journal of Esthetic and Restorative Dentistry.2023; 35(5): 787. CrossRef
Instrumental and visual evaluation of the color adjustment potential of a recently introduced single‑shade composite resin versus multishade composite resins
Jiakang Zhu, Yue Xu, Mengxun Li, Cui Huang
The Journal of Prosthetic Dentistry.2023;[Epub] CrossRef
Color Stability of Bioactive Restorative Materials After Immersion in Various Media
Shara I Sajini, Ali B Mushayt, Talal A Almutairi, Roaa Abuljadayel
Journal of International Society of Preventive and Community Dentistry.2022; 12(4): 418. CrossRef

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Effects of a bleaching agent on properties of commercial glass-ionomer cements: Fernanda Lúcia Lago de Camargo, Ailla Carla Lancellotti, Adriano Fonseca de Lima, Vinícius Rangel Geraldo Martins, Luciano de Souza Gonçalves; Restor Dent Endod 2018;43(3):e32. Published online July 5, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e32

Abstract PDF PubReader ePub

Objectives

This study evaluated the effects of a bleaching agent on the composition, mechanical properties, and surface topography of 6 conventional glass-ionomer cements (GICs) and one resin-modified GIC.

Materials and Methods

For 3 days, the specimens were subjected to three 20-minute applications of a 37% H₂O₂-based bleaching agent and evaluated for water uptake (WTK), weight loss (WL), compressive strength (CS), and Knoop hardness number (KHN). Changes in surface topography and chemical element distribution were also analyzed by energy-dispersive X-ray spectroscopy and scanning electron microscopy. For statistical evaluation, the Kruskal-Wallis and Wilcoxon paired tests (α = 0.05) were used to evaluate WTK and WL. CS specimens were subjected to 2-way analysis of variance (ANOVA) and the Tukey post hoc test (α = 0.05), and KH was evaluated by one-way ANOVA, the Holm-Sidak post hoc test (α = 0.05), and the t-test for independent samples (α = 0.05).

Results

The bleaching agent increased the WTK of Maxxion R, but did not affect the WL of any GICs. It had various effects on the CS, KHN, surface topography, and the chemical element distribution of the GICs.

Conclusions

The bleaching agent with 37% H₂O₂ affected the mechanical and surface properties of GICs. The extent of the changes seemed to be dependent on exposure time and cement composition.

Citations

Citations to this article as recorded by

Physical-mechanical, chemical and biological properties of graphene-reinforced glass ionomer cements
Tatiane Ramos dos Santos Jordão, Laura Soares Viana Fernandes, Karla Lorene de França Leite, Adílis Alexandria, Emmanuel João Nogueira Leal Silva, Lucianne Cople Maia, Tatiana Kelly da Silva Fidalgo
Restorative Dentistry & Endodontics.2024;[Epub] CrossRef
An In Vitro Exploration of Interaction Mechanisms of Intracoronal Bleaching on the Compressive Strength of Conventional and Calcium Silicate–Based Self‐Adhesive Resins and Their Bonding to Composite Resin Restorative Material
Fereshteh Shafiei, Paria Dehghanian, Shadi Tivay, Yasamin Ghahramani, Luca Testarelli
International Journal of Dentistry.2024;[Epub] CrossRef
Multidisciplinary conservative management of a severely discolored nonvital tooth
Álvaro Ferrando Cascales, Francesc Abella Sans, Rubén Agustín-Panadero, José Amengual Lorenzo
The Journal of Prosthetic Dentistry.2023;[Epub] CrossRef
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V. Pilliol, B. Ballester, T. Baudinet, G. Aboudharama, E. Terrer
EMC - Odontologie.2023; 39(2): 1. CrossRef
The Effect of Home and In-Office Bleaching on Microhardness and Color of Different CAD/CAM Ceramic Materials
Ruwaida Z. Alshali, Mohammed A. Alqahtani
Materials.2022; 15(17): 5948. CrossRef
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V. Pilliol, B. Ballester, T. Baudinet, G. Aboudharama, E. Terrer
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Comparative Evaluation of Two Glass Polyalkenoate Cements: An In Vivo Pilot Study Using a Sheep Model
Leyla Hasandoost, Daniella Marx, Paul Zalzal, Oleg Safir, Mark Hurtig, Cina Mehrvar, Stephen D. Waldman, Marcello Papini, Mark R. Towler
Journal of Functional Biomaterials.2021; 12(3): 44. CrossRef
The Effect of Simulated Field Storage Conditions on Dental Restorative Materials for Military Field Use
David J Lemon, Wen Chen, Trevor Smith, April A Ford, Steven X Moffett, Jeffrey T Hoyle, Nicholas J Hamlin, Yoon Y Hwang
Military Medicine.2020; 185(5-6): e831. CrossRef

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