Aladag A, Sahan M H, Akkus N O, Aktas R
Mugla Sıtkı Koçman University, School of Dentistry, Department of Prosthodontics, Mugla, Turkey.
Ege University School of Dentistry, Department of Prosthodontics, Bornova, Izmir, Turkey.
Niger J Clin Pract. 2020 Aug;23(8):1073-1078. doi: 10.4103/njcp.njcp_590_19.
The aim of this study was to compare the retention of different luting agents used with implant-supported restorations.
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 AlO, 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.
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).
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.
本研究旨在比较用于种植体支持修复体的不同粘结剂的固位力。
共制备90个定制金属框架和内冠，并分为六个不同的粘结剂组（每组n = 15）：聚羧酸锌水门汀（PC）、树脂改性玻璃离子水门汀（RMGIC）、两种自粘结树脂水门汀（SARC）、铜离子磷酸锌水门汀（CZPC）和非丁香酚临时树脂水门汀（TRC）。用50μm的AlO进行喷砂处理后，将内冠粘结在框架上，并在37°C的人工唾液中储存48小时，然后在5 - 55°C之间进行37500次热循环。通过万能试验机对样品进行拉伸测试，并对数据进行统计分析。
不同类型水门汀的固位力值差异有统计学意义（P < 0.05）。CZPC的固位力值最高（755.12 ± 55MPa），而TRC的固位力值最低（311.7 ± 61MPa）。
在确保固位力方面，所测试的水门汀均不优于其他水门汀。所展示的水门汀类型旨在为临床医生在决定铸件与基牙之间所需固位力的大小时提供一个参考指南。
