Dental and Composite Resin Discoloration Induced by Different Hydraulic Calcium Silicate-based Cements: Two-year in Vitro Assessment

Overview

Journal J Appl Oral Sci

Specialty Dentistry

Date 2023 May 3

PMID 37132699

Authors

Lucas Santos de Jesus

Tiago Lopes Dos Santos Reis

Bernardo Guerra Mendonca de Melo Machado

Ana Luisa Monteiro da Costa

Julia Menezes Savaris

Claudia Angela Maziero Volpato

Eduardo Antunes Bortoluzzi

Cleonice da Silveira Teixeira

Paula Cristina Dos Santos Vaz Fernandes

Lucas da Fonseca Roberti Garcia

Affiliations

Soon will be listed here.

Abstract

Few long-term studies assess the discoloration induced by hydraulic calcium silicate-based cement on dental structures. In addition, as far as we know, no long-term study has assessed the discoloration induced by these cement on composite resin. This in vitro study aimed to assess, during a period of two years, the discoloration potential of different hydraulic calcium silicate-based cements (hCSCs) on the enamel/dentin structure and composite resin restoration. A total of 40 enamel/dentin discs were obtained from bovine incisors, and 40 composite resin discs (10 mm in diameter × 2 mm thick) were fabricated. A 0.8 mm-deep cavity was made in the center of each disc and filled with the following hCSCs (n=10): Original MTA (Angelus); MTA Repair HP (Angelus); NeoMTA Plus (Avalon); and Biodentine (Septodont). An initial color measurement was performed (T0 - baseline). After 7, 15, 30, 45, 90, 300 days, and two years, new color measurements were performed to determine the color (ΔE00), lightness (ΔL'), chroma (ΔC'), hue differences (ΔH'), and whiteness index (WID). For enamel/dentin, the ΔE00 was significant among groups and periods (p<0.05). NeoMTA Plus had the greatest ΔE00. The NeoMTA Plus group had the greatest ΔE00 after two years for composite resin. Significant reduction in lightness was observed for all groups after two years (p<0.05). The most significant WID values were observed after 30 days for Biodentine (enamel/dentin) and MTA Repair HP groups (composite resin) (p<0.05). The hCSCs changed the colorimetric behavior of both substrates, leading to greater darkening over time. The Bi2O3 in the Original MTA seems relevant in the short periods of color change assessment.

Citing Articles

The Efficacy of Different Laser Applications on Dentin Sealing in Preventing Discoloration Induced by Mineral Trioxide Aggregate.

Sesen Uslu Y, Arican Alpay B, Sesen P, Ozyurek T Materials (Basel). 2024; 17(5).

PMID: 38473488 PMC: 10934636. DOI: 10.3390/ma17051015.

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