Open AccessAn in vitro comparative evaluation of fracture resistance of endodontically treated teeth obturated with different materials
Author(s) -
Rupali Chadha,
Sonali Taneja,
Mohit Kumar,
Mohit Sharma
Publication year - 2010
Publication title -
contemporary clinical dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.289
H-Index - 21
eISSN - 0976-237X
pISSN - 0976-2361
DOI - 10.4103/0976-237x.68590
Subject(s) - universal testing machine , zinc oxide eugenol , gutta percha , dentistry , root canal , materials science , significant difference , eugenol , medicine , chemistry , composite material , ultimate tensile strength , organic chemistry
The aim of this study was to evaluate the in vitro effect of various obturating materials on fracture resistance of root canal treated teeth. Sixty freshly extracted human mandibular premolars were used. After standardizing the length to 13 mm, the teeth were biomechanically prepared and divided into four groups based on type of obturating materials used. Teeth were embedded in acrylic resin and fracture strength was measured using a universal testing machine. Data obtained was evaluated statistically using one-way ANOVA and the unpaired t-test. Teeth obturated with AH Plus and gutta percha showed higher fracture resistance than those obturated with Resilon-Epiphany. The results suggested that the group obturated with gutta percha and zinc oxide-eugenol sealer had the lowest fracture resistance. No statistically significant difference was found between the unobturated (control) group and the zinc oxide-eugenol group.