Retentive strength of different intracanal posts in restorations of anterior primary teeth: an in vitro study

摘要: Objectives: To determine the retentive strength and failure mode of undercut composite post, glass fiber post polyethylene luted with flowable resin resin-cement. Materials Methods: Coronal parts 120 primary canine teeth were sectioned specimens treated endodontically. The randomly divided into 6 groups (n = 20). Prepared root canals received intracanal retainers a short or resin-cement, After crown reconstruction, samples tested for mode. Statistical analysis was done one-way ANOVA Tukey tests (p < 0.05). Results: There statistically significant differences between 0.001). Mean bond in group significantly greater than 0.030), 0.001) resin-cement 0.008). However, as luting agent not 0.068, p 0.557). Adhesive more frequent groups. Conclusions: Although undercutting showed greatest resistance to dislodgement, posts cemented provided acceptable results terms fracture (Restor Dent Endod 2013;38(4):215-221)