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Dental composites are becoming increasingly popular in esthetic restorative dentistry and present a promising substitute for amalgam. However, the major hurdles that hinder their total adoption in restorative dentistry are limited longevity and possible health risks, leading to significant attempts for addressing these shortcomings. Besides the new materials, the evaluation methods play a critical role in the introduction and improvement of these types of materials. This review aims to cover the characterization methods in the evaluation of dental composites that are most employed nowadays. Therefore, the methods for evaluating the physical properties of the dental composites are first explained. Subsequently, the assessment methods of curing kinetics and the mechanical properties of the composites are classified and reviewed. Afterward, the article delves into the introduction and classification of the microscopic and antibacterial evaluation methods. Finally, the test methods for assessment of in vitro cytotoxicity and self-healing ability are described. It should be noted, for each test method, the most recent and interesting articles are cited. It is envisaged that this review will facilitate an understanding and provide knowledge for the section and utilizing the most effective and suitable characterization methods for future research on the development of dental composites.

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