Color stability and surface roughness of the alkasite restorative material: an in vitro study
BMC ORAL HEALTH, cilt.27, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 27
- Basım Tarihi: 2026
- Doi Numarası: 10.1186/s12903-026-10379-2
- Dergi Adı: BMC ORAL HEALTH
- Derginin Tarandığı İndeksler: Natural Science Collection (ProQuest), Biological Science Database (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Health Research Premium Collection (ProQuest), Scopus, Science Citation Index Expanded (SCI-EXPANDED), CINAHL, EMBASE, MEDLINE, Directory of Open Access Journals
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet
Özet
Background
Alkasites are ion-releasing resin-based restorative materials developed to combine the mechanical properties of resin composites with the potential benefits of remineralizing ion release. However, evidence regarding their surface properties and color stability remains limited.
Methods
A total of 112 disc-shaped specimens were prepared. Alkasite specimens were polymerized by self-curing or high- or low-intensity light and polished using either a disc-based or spiral-wheel system. A nanohybrid composite served as the control. Specimens underwent thermocycling or 24-day coffee immersion, both combined with simulated toothbrushing. Surface roughness was assessed by atomic force microscopy (AFM) and color change by CIEDE2000. Data were analyzed using three-way and Welch’s analyses of variance.
Results
Significant polymerization × polishing interactions were observed for all surface roughness parameters (p < 0.001) and color change (p = 0.002). No aging-related roughness changes occurred in disc-polished alkasite groups (p > 0.05). Self-curing combined with spiral-wheel polishing produced the greatest roughness and color changes (p < 0.001). High-intensity light polymerization with disc-based polishing was the only test group showing color change comparable to the control after staining (p = 0.351).
Conclusions
Polymerization mode and polishing influenced alkasite surface and color stability. Disc-based polishing provided greater surface stability, while its combination with high-intensity light polymerization provided the most favorable color stability.
Clinical relevance
Disc-based polishing may be preferable to spiral-wheel polishing systems with diamond particles to achieve better surface quality. High-intensity light polymerization may contribute to improved color stability.