Retention of Luting Agents Used for Implant-Supported Restorations: A Comparative In-Vitro Study
Makaleler > Tam Makale · 2020
Yazarlar: A Aladag, MH Sahan, NO Akkus, R Aktas
Nigerian Journal of Clinical Practice, Uluslararası, Wos, 2020, cilt 23, ss 1073-1078
Özet
Aims: The aim of this study was to compare the retention of different luting agents used with implant-supported restorations. Materials and Methods: A total of 90 custom metal frameworks and copings were prepared and divided into six different luting agent groups ( n = 15/group): polycarboxylate cement (PC), resin-modified glass-ionomer cement (RMGIC), two self-adhesive resin cements (SARC), copper-ion zinc-phosphate cement (CZPC), and non-eugenol temporary resin cement (TRC). After sandblasting with 50 μm Al 2 O 3 , the copings were cemented on frameworks and stored in artificial saliva for 48 h at 37°C and thermocycled between 5–55°C for 37,500 cycles. Samples were subjected to tensile testing by a universal testing machine, and data were statistically analyzed. Results: The differences between the retention values of types of cement were significant ( P < 0.05). The maximum retention value was calculated for CZPC (755,12 ± 55 MPa) while the lowest value was for TRC (311,7 ± 61 Mpa). Conclusion: Neither of the tested cement had superiority over another to ensuring retention. The types of cement presented were meant to be a discretionary guide for the clinician in deciding the amount of the desired retention between castings and abutments.