Abstract:

Objective To evaluate the clinical prosthetic effect of IPS- Empress 2 pressable ceramic crowns. Methods 198 teeth of 70 patients were restored with IPS- Empress 2 pressable ceramic crowns. The patients were asked to return in one week and every half year. The clinical prosthetic effect was evaluated. Results Through follow- up of 3- 38 months, the veneer porcelain crowns of 3 teeth were broken. 2 crowns fall off due to teeth fracture, gingivitis occurred in 2 teeth, pulpitis or periapical periodontitis occurred in 3 teeth. The shades of 3 crowns were darkening. The prosthetic effect of 185 teeth was satisfied. The rate of satisfaction was 93.4%. Conclusion IPSEmpress 2 pressable all- ceramic crown has the advantages of aesthetic effect, good biocompatibility and simple fabrication. But its strength is not enough for posterior teeth and it can not cover the deep color of non- vital teeth and metal materials.

Key words: crown, IPS- Empress, dental porcelain