Abstract
New technic for fabrication of resin veneered crown without any mechanical retentive devices onto the metal frame was introduced by using adhesive opaque-resin including 4-META. Prognosis of these veneer crowns was followed during half to two years. The fall percentage of veneered resin in 257 teeth of 106 patients was about 9% in total facing crowns and pontics. The 15% of the upper veneered crown was rather high as compared with that of lower ones, although it was due to the incisal edges or buccal cusps were not covered withmetal frame. The results of prognosis suggests that using together the mechanical retentive devices is essensial clinically, even if this adhesive opaque-resin showed high retentive strength in vitro.
