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All Journal Journal of Dentistry Indonesia
Mishra, Surendra Kumar
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Dentistry

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Effect of the Extent of Apical Enlargement on the Degree of Debridement of the Apical Third in Curved Root Canals Andrabi, Syed Mukhtar-Un-Nisar; Kumar, Ashok; Tewari, Rajendra Kumar; Mishra, Surendra Kumar; Iftekhar, Huma; Zia, Afaf
Journal of Dentistry Indonesia Vol. 25, No. 3
Publisher : UI Scholars Hub

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Objectives: The present study aimed to evaluate the influence of various apical instrumentation sizes and tapers on the degree of debridement of the apical third of curved root canals. Methods: We used 60 extracted human mandibular first molars with mesial root curvatures of 20° to 30°. In all teeth, access cavity preparation was performed, followed by coronal flaring with Gates Glidden drills #1–4 (Dentsply Maillefer). Specimen teeth were subsequently randomly divided into five groups (n = 12). Each group was enlarged to a particular apical size and taper as follows: no apical preparation done (group I, Control group); 25/.04 and 25/.06 (Group II); 30/.04 and 30/.06 (group III); 35/.04 (group IV); 40/.04 (group V). Specimens were rinsed with 17% EDTA and 3% NaOCl solutions. We used a scanning electron microscope to evaluate specimens’ degree of debridement. Retrieved data were analyzed using Kruskal–Wallis and Mann–Whitney U-tests (p < 0.05). Results: Acceptable debridement was observed in groups III, IV, and V. Additionally, debridement was significantly better in Groups IV and V than in group II. Conclusion: Apical preparation with <30/.04 size results in an unacceptable degree of debridement of the apical third.
Endodontic Management of An Unusual Mandibular First Molar with Six Canals: A Case Report and Systematic Review Ahmad, Sarah; Andrabi, Syed Mukhtar -Un- Nisar; Kumar, Ashok; Mishra, Surendra Kumar; Tewari, Rajendra Kumar
Journal of Dentistry Indonesia Vol. 29, No. 3
Publisher : UI Scholars Hub

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The permanent mandibular first molar is frequently involved in conventional root canal treatment due to its function and position in the oral cavity. Additional root canals mandate accurate diagnosis and conservative management to prevent any procedural errors. The first independent middle mesial canal incidence was verified in mandibular molars in 1974, with a global incidence of 10.8–27.0%. Reporting of the middle distal canal in the endodontic literature is scarce, with an incidence of 0.2–3%. The present case report describes the endodontic management of an unusual permanent mandibular first molar with three canals in the mesial and distal roots, diagnosed with irreversible pulpitis and apical periodontitis. A dental operating microscope and multiple angulated radiographs were used to identify the unusual morphology, and this was confirmed with cone-beam computed tomography imaging. The access cavity was modified to a trapezoidal shape, and the pulp chamber was carefully explored following root dentinal maps to expose additional canals by ultrasonic troughing. Incorporating a dental operating microscope and cone-beam computed tomography imaging in routine endodontic cases facilitates a better understanding and visualization of the complex root canal anatomy, making even the management of endodontically challenging cases more predictable.
Co-Authors Afaf Zia, Afaf Ahmad, Sarah Andrabi, Syed Mukhtar -Un- Nisar Andrabi, Syed Mukhtar-Un-Nisar Iftekhar, Huma Kumar, Ashok Tewari, Rajendra Kumar