Effect of polymerization mode on dentin bond strength of universal adhesives: influence of aging and application strategy
Quintessence International, cilt.57, sa.5, ss.368-376, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 57 Sayı: 5
- Basım Tarihi: 2026
- Doi Numarası: 10.3290/j.qi.b6982835
- Dergi Adı: Quintessence International
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CINAHL, EMBASE, MEDLINE, DIALNET, Biomedical Reference Collection: Corporate Edition (EBSCO)
- Sayfa Sayıları: ss.368-376
- Anahtar Kelimeler: dentin bond strength, etch-and-rinse, polymerization mode, self-etch, thermocycling, universal adhesives
- Lokman Hekim Üniversitesi Adresli: Evet
Özet
Objectives: This study evaluated the effect of polymerization mode on dentin bond strength of universal adhesives applied using etch-and-rinse (ER) and self-etch (SE) strategies, before and after thermocycling. Method and materials: A total of 120 human molardentin specimens were prepared and assigned to 12 groups (n = 10) according to adhesive polymerization type (light-cured, chemically cured, and dual-cured), application mode (ER and SE), and storage condition (24 hours orthermocy-cled). After adhesive application and composite build-up, half of the specimenswere tested after24 hours, while the remaining specimens underwent 5, 000 thermocycles. Shear bond strength (SBS) was measured using a universal testing machine, and failure modes were evaluated. Data were analyzed using three-way ANOVAand Bonferroni post hoc tests (a =.05). Results: Thermocycling significantly reduced SBS values in all groups (P<.001). In contrast, neither adhesive type (P =.065) nor application mode (P=.ll) had a significant effect on bond strength. No significant interactions were found among the variables (P>.05). Failure mode analysis revealed predominantly adhesive and mixed failures, with an increase in adhesive failures after thermo-cycling. Conclusion: Polymerization mode and application strategy did not significantly influence dentin bond strength, whereas thermocycling reduced the durability ofthe adhesive interface. These findings suggest that aging-related factors may play a more critical role than differences in curing mechanism or application strategy. Clinically, the selection of polymerization mode alone may not be critical for bonding performance.