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Quintessence International



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Quintessence Int 25 (1994), No. 2     1. Feb. 1994
Quintessence Int 25 (1994), No. 2  (01.02.1994)

Page 125-132

Clinical results with resin-bonded prostheses and an adhesive cement
The longevity of resin-bonded prostheses made of a high-gold alloy and bonded with Super-Bond C&B (C&B Metabond) were tested clinically. Minimal preparation and large surface area of retainer coverage were used. The inner surfaces of the retainers were air abraded with aluminum oxide and heat treated in an oven at 400 degrees C to get an oxidized layer for bonding. The results of the adhesive technique were unsatisfactory compared with studies with resin-bonded prostheses using conventional mechanical retention techniques and nonadhesive resin cements. All fractures were at the resin-metal interface. Early debonds occurred; seven of 13 prostheses were detached after 11 months. The median survival time was only 9 months. The adhesion of resin-bonded prostheses must still be based on mechanical retention between cement and metal, because a way of attaining good durability of the bonding joints to water with Super-Bond is yet to be found.