The Color Stability of Different Dental Composite Materials: (Review Artical)
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- Category: Vol. 89, December 2021
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The Color Stability of Different Dental Composite Materials: (Review Artical)
Abstract
Background: Over the past 40 years, CAD/CAM technol-ogy has seen constant improvements, leading to easier use and more reliable clinical performance. New materials like glass ceramics, zirconia, and composites have been developed for CAD/CAM restorations, offering clinicians different mechan-ical and optical properties. Direct resin-based composite (RBC) restorations have drawbacks like weak mechanical properties and lack of color stability. Indirect RBCs have higher mechani-cal properties and color stability due to extra-oral curing. CAD/CAM composite blocks (CCB) have gained popularity due to their higher quality, easier finalization, and ease of finishing, polishing, and repair. Aim of Study: This systematic study seeks to assess the color stability of resin composite CAD/CAM blocks (CCB) when exposed to staining solutions. Methods: A systematic exploration was conducted on sev-eral databases (Embase, Medline, Scopus, Web of Science). The search phrases used were: ‘polymer infiltrated’, ‘poly-mer-based’, ‘resin nanoceramic’, ‘resin ceramic’, ‘hybrid com-posite’, ‘hybrid ceramic’, ‘composite ceramic’, ‘resin infiltrat-ed’, ‘CAD-CAM’, ‘CAD/CAM’, ‘color stability’, ‘staining’, ‘staining susceptibility’, ‘color change’, and ‘color difference’. This study includes only in vitro studies published in the Eng-lish language until 18 September 2022. There is no beginning time constraint. The articles should evaluate the color stability of CCB when exposed to staining solutions. Studies that ex-amine color change caused by smoke or whitening treatments; studies that do not include a clinical assessment of the data us-ing the standards for color perceptibility and acceptability. Results: Among the 378 papers originally obtained, only 19 were deemed relevant for this study. The researchers exam-ined 17 distinct calcium channel blockers (CCBs) and sever-al artificial staining methods using liquid procedures, such as coffee, red wine, tea, and cola. In 18 out of 19 investigations, CCBs surpassed the acceptable limits for color change, demon-strating a notably better level of color stability compared to tra-ditional hybrid resin-based composites (RBCs), but a notably lower level of color stability compared to ceramic materials. The variations in color stability across CCBs may be ascribed to both the nature of the material and the diversity of staining techniques used. Conclusion: In conclusion, clinicians should be mindful that whereas ceramic materials incur color changes to a lesser extent in direct or indirect operations, CCBs experience color changes to a greater extent.