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Year : 2016  |  Volume : 28  |  Issue : 2  |  Page : 159-165

Comparison of Fracture resistance of teeth obturated with different obturation materials and sealers: An in vitro study

1 Department of Conservative Dentistry and Endodontics, Modern Dental College and Research Centre, Indore, Madhya Pradesh, India
2 Department of Conservative Dentistry and Endodontics, Swargiya Dadasaheb Kalmegh Smruti Dental College and Hospital, Nagpur, Maharashtra, India

Correspondence Address:
Harshank Lakhera
Muskaan Dental Clinic, G-9, Rafael Tower, Saket Square, Indore - 452 001, Madhya Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0970-7212.195428

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Introduction: The objective of the study is to evaluate and compare the vertical root fracture resistance of maxillary central incisors filled with different root filling materials and sealers. Materials and Methods: Sixty freshly extracted maxillary central incisor were decoronated 2 mm above the cementoenamel junction and were instrumented using K-flex files. Teeth were divided into four experimental groups and two control groups of ten each and root filled as Group A - Gutta-percha master cone and AH Plus sealer, Group B - Gutta-percha master cone and RealSeal sealer, Group C - RealSeal master cone and RealSeal sealer, Group D - RealSeal master cone and AH Plus sealer, Group E - roots were instrumented but not filled (negative control group), and Group F - roots were neither instrumented nor filled (positive control group). Restored teeth were subjected to compressive loading in a universal testing machine. Results: Group C showed highest fracture resistance among other groups, followed by Group F, Group D, Group B, and Group A. Group E showed the lowest fracture resistance value. According to an independent sample t-test, significant difference was found between Group A and Group C (P = 0.038), Group A and Group F (P = 0.048), Group B and Group C (P = 0.039), Group C and Group E (P = 0.024), Group D and Group E (P = 0.038), and Group E and Group F (P = 0.034), and the results were nonsignificant among other groups. Conclusion: The higher fracture resistance was seen in roots obturated with RealSeal system compared with Gutta-percha-AH 26 groups on vertical loading.

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