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Year : 2021  |  Volume : 13  |  Issue : 5  |  Page : 379-382

Evaluation of quality of endodontic re-treatment and changes in periapical status

1 Department of Endodontics, University of Sharjah, UAE
2 Department of Prosthodontics and Crown and Bridge, Vananchal Dental College and Hospital (VDCH), Garhwa, Jharkhand, India
3 Department of Restorative Dentistry, College of Dentistry in Alrass, Qassim University, KSA
4 Huntly Dental Practice, AB54 8DT, Aberdeenshire, Scotland, United Kingdom

Correspondence Address:
Nausheen Aga
Department of Endodontics, University of Sharjah, Sharjah
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jpbs.JPBS_814_20

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Background: The present study was conducted to assess quality of root canal (RC) filling before and after RC re-treatment. Materials and Methods: Two hundred and thirty-eight radiographs of failed endodontic treatment were assessed. The periapical status of the endodontic treatment was evaluated with periapical index (PAI) scoring system. PAI <3 showed absence and PAI >3 showed presence of periapical lesion. Results: There was a statistically significant increase in scores 1 and 3 and decrease in scores 2, 4, 5, and 6 after treatment (P < 0.05). PAI score >3 was seen in 37% before which decreased to 16% after endodontic retreatment. 34.6% obturation was homogenous and 65.4% was nonhomogenous before endodontic retreatment. After endodontic retreatment, 95.2% became homogenous and 4.8% nonhomogenous. The reason for endodontic failure was furcation in 2%, iatrogenic causes in 3%, loss of coronal seal in 16%, periapical pathology in 25%, and inadequate root filling in 54%. Conclusion: There was significant improvement and decrease in size of periapical lesions in re-endodontic cases as compared to primary RC treated teeth.

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