Evaluation of Quality of Endodontic Re-Treatment and Changes in Periapical Status

Nausheen Aga; Manoj Kumar Thakur; Muhammad Atif Saleem Agwan; Muna Eisa; Amel Yousif Habshi; Sarah Azeem

doi:10.4103/jpbs.JPBS_814_20

Evaluation of Quality of Endodontic Re-Treatment and Changes in Periapical Status

J Pharm Bioallied Sci. 2021 Jun;13(Suppl 1):S379-S382. doi: 10.4103/jpbs.JPBS_814_20. Epub 2021 Jun 5.

Authors

Nausheen Aga¹, Manoj Kumar Thakur², Muhammad Atif Saleem Agwan³, Muna Eisa¹, Amel Yousif Habshi¹, Sarah Azeem⁴

Affiliations

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.

Abstract

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.

Keywords: Apical periodontitis; re-treatment; root canal therapy.