Selection of a material for FDP also accompanies the selection of a suitable luting agent.
Glass-ionomer cements was the most popular luting agent used for FDP cementation.
Evaluation and control of post-cementation pulpal sensitivity: zinc phosphate and glass ionomer luting cements.
15) This is true mainly for zinc phosphate cements, which require less time for post removal by ultrasonic vibration compared with other luting cements.
This was probably caused by differences inherent in the root anatomy, in the molding and cast procedures, and in the characteristics of the luting material itself.
Increased time intervals between core-finishing procedures after cast post-and-core luting with zinc phosphate cements can result in higher rates of retention.
Glass Ionomer luting cement which is one of the most commonly used permanent luting agents for cast restorations has a comparatively low initial setting pH at the time of placement and this has been implicated as a cause of post cementation sensitivity5 when the prosthesis is being cemented on teeth with intact pulp vitality.
This study was done to establish that which one of these luting cements offe rs better results in terms of post cementation sensitivity in abutments of fixed partial dentures having vital pulps with full coverage restorations.
The film thickness could be lowered by increased magnitude and duration of seating force and elevated by higher viscosity of the luting cement.
Whereas, Variolink II is a dual curing adhesive luting composite.
Luting materials at circumferential tie area are exposed to oral fluids and any dissolution around the margins of restoration provide stagnation area for the dental plaque.
Other luting materials which have gained more popularity are resin modified glass ionomer cement and resin cement.