Number 3, Juli, 2003
YU ISSN 0365-4478
Klinika za stomatologiju,
Braće Tasković 52
18 000 Niš
Srbija i Crna Gora
THE EFFECT OF KAVINER ON THE FIXED DENTURES
A layer of agents used to protect polished teeth is applied to a stump prior to
the final cementation of the fixed denture for the purpose of alleviating
postoperative sensibility. The objective of this paper was to establish, under
the in vitro conditions, whether application of one layer of the agent (Kaviner)
intended to isolate polished teeth decreases the fixed denture bonding strength.
Used as a material were 40 intact human premolars extracted for ortodox reasons,
polished by a high capacity machine using a cold water spray cooling.
Experimental crowns were made by a standard method from NiCrMo alloy and
cemented by zinc phosphate and glass ionomer cements on the corresponding stumps
(20 in each group). After seven days, the bond strength between the polished
teeth and crowns was mechanically tested, first without and then after
application of Kaviner.
The results obtained have shown a decrease in the bonding strength with both
cements used, higher decrease in the retention force being observed with the
glass ionomer cement. However, the retention force values obtained after the
application of Kaviner for both observed dental cements are still clinically
Key words: fixed denture, bonding strength, effect of