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Updated: Aug 5, 2026
Evaluating the Effects of Different Polishing Methods on Color Stability of Dental Restorations in Pediatric Dentistry
Published on: June 6, 2025
Evaluation of Fracture Toughness, Color Match, and Handling of Resin Composite Restorations with Different
Maryam A Alghilan1, Norah K Alshammari2, Fay A Alammar2
1Department of Restorative and Prosthetic Dental Sciences, College of Dentistry, King Abdullah International Medical Research Center, King Saud bin Abdulazis University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh 11481, Saudi Arabia.
Abstract:
Evaluation of dentin-replacement materials (DRMs) is essential for optimizing material selection and restorative outcomes. Four restorative groups, each comprising a DRM (SDR® Plus, group A; EverX Posterior™, group B-control; Filtek™ Z250, group C; Fuji II LC®, group D) overlayed with a microhybrid composite (Filtek Z250) to replace enamel layer, were evaluated for mechanical, optical, and handling characteristics. Standardized specimens were prepared for color change (ΔEab/E00) and fracture toughness (KIC) testing (n = 8/group/test), with application time and handling evaluated by two independent assessors. Data were collected and analyzed statistically. The greatest color difference was observed in group B, which was significantly higher than that in groups A and C (p < 0.05), while group D did not differ significantly from any other group. Groups A and B exhibited significantly higher (p < 0.001) fracture toughness than groups C and D with no significant differences within either pair of groups. Group A required the least application time (p < 0.001), followed sequentially by groups B, C, and D. Handling ratings varied by material, with moderate inter-rater reliability (κ = 0.53). Within the study's limitations, restorations with SDR Plus composites offered clinical application efficiency with improved fracture toughness and favorable optical integration.
