Effect of nanoparticle infiltration into the opaque agent of pink composite resin on its bond strength with base metals
Journal of Adhesion Science and Technology, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1080/01694243.2026.2643790
- Dergi Adı: Journal of Adhesion Science and Technology
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: Composite resins, titanium dioxide nanotubes, dental materials, shear bond strength, fixed prostheses
- Sağlık Bilimleri Üniversitesi Adresli: Hayır
Özet
Objectives: The aim of this study was to evaluate the effect of titanium dioxide (TiO2) nanotube incorporation into the opaque agent of a pink composite resin (PCR) on its bond strength to two different base metal alloys. Materials and Methods: A total of 84 CoCr and Ti specimens (4 mm in diameter, 2 mm in height) fabricated via SLS/DMLS were assigned to eight experimental and four control groups (n = 7). All metal surfaces were sandblasted and primed. TiO2 nanotubes synthesized in a chemistry laboratory were incorporated into the opaque agent of PCR at 0.5% and 1.0% (w/w). Control groups were coated with heat-polymerized acrylic resin and PCR. Shear bond strength (SBS) between metal–resin interfaces was measured using a universal testing machine. Microscopic and spectroscopic analyses were performed to assess nanotube incorporation and characterize interfacial failure. Results: The highest SBS values were observed in the CoCr-TiO2n4 (18.5 MPa) and Ti-TiO2n4 (16.2 MPa) groups, whereas the lowest SBS values belonged to the acrylic resin control groups (CoCr-A: 5.0 MPa; Ti-A: 4.6 MPa). A statistically significant difference was detected between the Ti-TiO2n2 and Ti-TiO2n4 groups (p = 0.033). Conclusion: Incorporation of functionalized TiO2 nanotubes into the opaque agent tended to improve the bond strength of PCR to metal substrates. These findings indicate potential benefits of nanotube integration; however, further studies with larger sample sizes and optimized concentrations are recommended.