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Year : 2023  |  Volume : 15  |  Issue : 1  |  Page : 71-77

Efficiency of orange oil solvent combined with disinfectants and bioactive glass (BAG) on the cleanness of root canal after endodontic retreatment: An in vitro study

1 Prosthetic Dentistry Department, Faculty of Dentistry, King Salman International University, El Tur, South Sinai, Egypt
2 Endodontics Department, Faculty of Dentistry, Ahram Canadian University, Giza, Egypt

Correspondence Address:
Dr. Ahmed Abdou
Prosthetic Dentistry Department, Faculty of Dentistry, King Salman International University, El Tur, South Sinai
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jioh.jioh_115_22

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Aim: Endodontic retreatment is associated with clinical complication with doubtful success rate due to limited removal and cleaning of remnants and bacteria. This study investigated the effect of orange oil solvent containing bioactive glass on the removal of root canal filling material and bacterial loading during root canal retreatment. Materials and Methods: Thirty single-rooted, freshly extracted human central teeth were collected. Access opening and instrumentation were done. Samples were injected with 10 µL bacterial suspension (Enterococcus faecalis [E. faecalis]) at 37°C for 48 h and then filled with root canal filling using lateral compaction technique. Upon removal of the filling materials by retreatment kits, samples were divided based on the type of irrigating solution into three groups (n = 10): G1, 5 mL orange oil solution only; G2, 5 mL of 5% sodium hypochlorite with an orange oil solvent solution; G3, 5 mL of orange oil solution with bioactive glass (10%). All groups were subjected to a turbidity analysis and tested for colony-forming units (CFU)/mL. Afterward, longitudinal sections of samples were obtained from the root, and scanning electron microscopy was used to scan root wall. Scanned images were analyzed by two evaluators using a scoring system. Data were then statistically analyzed using Kruskal–Wallis test. Results: Significant difference resulted between tested groups for bacterial count (log CFU) at P = 0.015. G2 showed the highest significant bacterial count compared with G3 (P = 0.018). G1 showed an insignificant difference with other groups (P > 0.05). For cleaning efficiency scores, the highest significant scores resulted for G2, which was significant with +ve ctrl group (P = 0.01). Conclusion: The addition of bioactive glass did not influence antibacterial activity of orange oil irrigants in the removal of residual root canal filling materials.

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