title: Retention of posts in teeth with nonvital pulps.
abstract: The results of this study indicate that: 1. Cast posts without grooves are more retentive when cemented with zinc phosphate than with composite resin. 2. Cast posts with grooves in the posts and adjacent grooves in the teeth are more retentive than cast posts without grooves. 3. Cast posts with grooves and with adjacent grooves in the teeth have equal or greater retention than Paraposts with grooves in the teeth when both are placed with composite resin.
mesh_terms: D003188:Composite Resins; D003442:Crowns; D003781:Denture Retention; D006801:Humans; D011176:Post and Core Technique; D015036:Zinc Phosphate Cement
chemical_list: D003188:Composite Resins; D015036:Zinc Phosphate Cement