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Retention of implant‐supported zirconium oxide ceramic restorations using different luting agents
Author(s) -
Nejatidanesh Farahnaz,
Savabi Omid,
Shahtoosi Mojtaba
Publication year - 2013
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/j.1600-0501.2011.02358.x
Subject(s) - materials science , universal testing machine , zirconium oxide , crosshead , acrylic resin , dentistry , luting agent , ceramic , implant , composite material , bond strength , ultimate tensile strength , oxide , medicine , flexural strength , coating , adhesive , metallurgy , surgery , layer (electronics)
Objective The aim of this study was to evaluate the retention value of implant‐supported zirconium oxide ceramic copings using different luting agents. Method and materials Twenty ITI solid abutments of 5.5 mm height and ITI implant analogs were mounted vertically into autopolymerizing acrylic resin blocks. Ninety zirconium oxide copings (Cercon, Degudent) with a loop on the occlusal portion were made. All samples were airborne particle abraded with 110 μm Al 2 O 3 and luted using different types of luting agents: resin cements (Clearfil SA , Panavia F2.0, Fuji Plus), conventional cements (Fleck's, Poly F, Fuji I), and temporary cements (Temp Bond, GC free eugenol, TempSpan) with a load of 5 Kg. ( N = 10) All copings were incubated at 37°C for 24 h and conditioned in artificial saliva for 1 week, and thermal cycled for 5000 cycles 5–55°C with a 30‐s dwell time. The dislodging force of the copings along the long axis of the implant‐abutment complex was recorded using universal testing machine with 5 mm/min crosshead speed. Data were subjected to Kruskal–Wallis (α = 0.05) and Mann–Whitney tests with Bonferroni step down correction (α = 0.001). Results There was significant difference between the mean rank retention values of different luting agents ( P < 0.001). The resin cements showed the highest retention (Clearfil SA , 203.49 ± 52.86; Fuji Plus, 190.61 ± 48.00; Panavia F 2.0, 172.16 ± 70.76 N). The conventional cements had more retention than the temporary cements and glass ionomer cement ( P < 0.001). Conclusion The retention of zircona ceramic restorations, over ITI solid abutments may be influenced by the type of cement. The application of an MDP ‐containing resin and resin‐modified glass ionomer luting agents increase the retentive value of implant‐supported zirconium oxide restorations.