Year : 2018

Volume : Volume 9

Issue : Issue 3

Address for correspondence :
Dr. Snehal V Ukey.
ukeysnehal3@gmail.com

Abstract

Background:  To compare fracture resistance of endodontically treated teeth restored with various post systems using different luting agents under tangential loading. Materials and methods: 40 freshly extracted maxillary anterior teeth were collected and stored in normal saline were disinfected with 0.5% sodium hypochlorite. They were stored in normal saline to prevent dehydration before and during experimental procedures. Teeth are divided into 4 groups of 10 teeth each and restored with fiber posts, prefabricated metal posts, custom made posts and luted with glass ionomer cement, resin cement and zinc phosphate cement. Teeth were endodontically treated, and post space preparation is done. All the specimens were subjected to load (newton, N) on the lingual surface at a 135° angle to the long axis with a universal testing machine until it fractured. Results: Custom made posts has higher fracture resistance as compared to other groups. There exist statistical significant difference (p=0.001) between group A and group B. No statistically significant difference was observed between group A  and group C. Group D has highly statistically significant greater fracture resistance  (p<0.001**) as compared to group A(control). Conclusions: Teeth restored with custom made posts showed better resistance to fracture than teeth restored with fiber post, prefabricated metal post. Control group showed least fracture resistance as compared to other groups. Among luting agents, custom made posts luted with adhesive resin cement showed higher fracture resistance followed by glass ionomer cement and zinc phosphate cement. Keywords: Tangential loading, Adhesive resin cement, Fiber post, Cast post, Prefabricated metal post.