Are Sculptable Bulk-Fill Composites Susceptible to Color Change: A Systematic Review.

Area of Science:

• Dental Materials Science
• Biomaterials Research
• Aesthetic Dentistry

Background:

• Aesthetic performance of dental restorations is crucial for patient satisfaction.
• Bulk-fill resin composites offer clinical advantages but their long-term optical stability requires investigation.
• Understanding color changes in sculptable bulk-fills is essential for predictable clinical results.

Purpose of the Study:

• To systematically review changes in optical properties of sculptable bulk-fill resin composites when exposed to various staining media.
• To assess the impact of staining and bleaching on the aesthetic longevity of these materials.
• To identify factors influencing color stability in bulk-fill composites.

Main Methods:

• Systematic literature search conducted across major databases (MEDLINE, Embase, Web of Science, SCOPUS).
• Inclusion of in vitro studies with control groups measuring optical properties spectroscopically.
• Risk of bias assessment using the RoBDEMAT framework.

Main Results:

• Twelve studies were analyzed, revealing variable color stability among sculptable bulk-fill composites.
• Common staining media like coffee, tea, and wine caused significant color changes.
• Certain bulk-fill materials (e.g., SonicFill, Fill-up) demonstrated better color stability than others, like fiber-reinforced everX.

Conclusions:

• The color stability of sculptable bulk-fill composites is highly material-dependent.
• Factors such as material type, polishing, staining medium, and exposure duration influence optical property changes.
• Standardized research protocols are needed to enable robust meta-analytical comparisons and guide clinical material selection for optimal aesthetics.