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 Indian J Med Microbiol  
 

Figure 3: Impression recorded using polyvinyl-siloxane after preparation of the maxillary anterior teeth and premolars for crowns and facets Observe the differences in tooth preparation for crowns (a; maxillary central and lateral incisors) and that for facets (b; maxillary canines and first premolars). Removal of tooth structure for ceramic restorations is as conservative as possible to achieve satisfactory esthetics of crowns placed over metallic cores and laminate veneers

Figure 3:  Impression recorded using polyvinyl-siloxane after preparation of the maxillary anterior teeth and premolars for crowns and facets Observe the differences in tooth preparation for crowns (a; maxillary central and lateral incisors) and that for facets (b; maxillary canines and  first premolars). Removal of tooth structure for ceramic restorations is as conservative as possible to achieve satisfactory esthetics of crowns placed over metallic cores and laminate veneers