%0 Journal Article
%A Zeinabadi, Zohre
%A Nami, Majedeh
%A Naserkhaki, Majid
%A Tavakolizadeh, Sara
%D 2020
%I Begell House
%K dental implant, cementation, dental prosthesis retention, abutment replica technique, half-filling technique
%N 1
%P 61-67
%R 10.1615/JLongTermEffMedImplants.2020035290
%T Effect of Cement Type and Cementation Technique on the Retention of Implant-Supported Restorations
%U https://www.dl.begellhouse.com/journals/1bef42082d7a0fdf,32d222c9780a9dce,7347600b30135def.html
%V 30
%X Objectives: This study aimed to assess the effect of cement type and cementation technique on the retention of cement-retained implant-supported restorations.
Material and Methods: In this in vitro study, 20 solid abutments were screwed onto the fixture analogs and were mounted in acrylic resin molds using a surveyor. Twenty computer-aided design/computer-aided manufacturing (CAD/CAM) metal crowns with an occlusal loop were fabricated, divided into two groups (n = 10), and bonded with temporary dental cement (Temp-Bond™; group 1) or glass ionomer (GC; group 2). Each group was subcategorized based on its cementation method (half-filling or abutment replica technique). The cement was applied to the copings that were placed vertically on the abutment with applying a 5-kg load for 10 min. The samples were then incubated at 37°C for 24 h and subjected to 3000 thermal cycles. The samples underwent axial tensile load within a universal testing machine. Data were analyzed using two-way ANOVA.
Results: GC cement yielded significantly higher retention than Temp-Bond™ (P < 0.05). In the GC group, the half-filling subgroup showed significantly higher retention than the abutment replica subgroup (P < 0.05). The mean retention value in the Temp-Bond™ group revealed no significant difference between the two subgroups (P > 0.05). GC yielded higher retention than Temp-Bond™ while using the half-filling cementation technique (P = 0.00). However, this difference was not significant between GC and Temp-Bond™ with the abutment replica technique (P = 0.960).
Conclusion: Within the limitations of this study, the results showed that permanent cementation with half-filling technique yielded significantly higher retention in implant restorations.
%8 2020-07-20