A Comprehensive Evaluation of the Factors Affecting Composite Resin Color Changes in Complex Restorations after Bleaching: A narrative review

Koochaki, Mahsa; Rahimirad, Parisa; Shakerinia, Mohammadamin; Hoseini Basti, Hoorieh Alsadat; Sadeghi, Yasaman; Shameli, Mona

Volume 14, Issue 1 (6-2025) 2025, 14(1): 21-28 | Back to browse issues page

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Koochaki M, Rahimirad P, Shakerinia M, Hoseini Basti H A, Sadeghi Y, Shameli M. A Comprehensive Evaluation of the Factors Affecting Composite Resin Color Changes in Complex Restorations after Bleaching: A narrative review. Journal title 2025; 14 (1) :21-28
URL: http://3dj.gums.ac.ir/article-1-641-en.html

A Comprehensive Evaluation of the Factors Affecting Composite Resin Color Changes in Complex Restorations after Bleaching: A narrative review

Mahsa Koochaki¹

, Parisa Rahimirad²

, Mohammadamin Shakerinia³

, Hoorieh Alsadat Hoseini Basti⁴

, Yasaman Sadeghi⁵

, Mona Shameli ^*⁶

1- Department of Oral and Maxillofacial Medicine, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
2- Student Research Committee, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
3- Student Research Committee, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
4- Dental Sciences Research Center, Department of Restorative, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
5- Department of Restorative, School of Dentistry, Guilan University of Medical Sciences, Rasht.
6- Student Research Committee, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran. , monashameli@gmail.com

Abstract: (412 Views)

With the growing demand for aesthetic dental treatments, tooth bleaching has emerged as a widely used, non-invasive procedure aimed at enhancing dental appearance and minimizing discoloration. However, bleaching agents may affect the color stability of composite resin restorations. This narrative literature review aims to evaluate the effects of various bleaching protocols on composite resin restorations and compare these effects with changes observed in natural teeth. A comprehensive literature search was conducted through PubMed (MEDLINE), Scopus, and Web of Science up to May 2025, using relevant keywords. Additional sources were identified via a Google-based manual search. A total of 146 articles were included based on their relevance to at-home and in-office bleaching techniques and bleaching agent concentrations. Findings indicate that materials such as silorane-based and Ormocer-based nanohybrid composites are more susceptible to discoloration when exposed to high concentrations of hydrogen peroxide (up to 40%) during in-office bleaching. Due to the considerable variability in reported outcomes across existing studies, there is a need for further standardized and rigorously designed investigations to better understand the mechanisms of color change in resin-based restorations and to guide clinical decision-making.

Keywords: Composite Resins, Tooth Discoloration, Tooth Bleaching

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Type of Study: Review article | Subject: So on
Received: 2025/04/21 | Accepted: 2025/06/27 | Published: 2025/06/30

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