Dental Journal of Advance Studies

Harleen Kaur Gill ¹, Ajay Chhabra ¹, Varun Jindal ¹, Ankur Vats ¹, Gurkirat Singh Grewal ¹

Affiliations
1 Department of Conservative Dentistry, Bhojia Dental College & Hosptal, Distt. Solan, Himachal Pradesh, IN

Abstract

In case of failed ischolar_main canal treatment endodontic retreatment of the ischolar_main canal system is necessary. The aim of the present study was to compare the gutta-percha removal with Protaper retreatment files (Dentsply Maillefer, Ballaigues, Switzerland), K3 (SybronEndo) and Hero Shapers (MicroMega, Besancon, France). Method: Thirty freshly extracted human single ischolar_mained teeth were prepared with ProTaper rotary instruments up to file F3 andfilled with 30 # GP cones and AH plus sealer. The teeth were then stored for 1 week. The teeth were divide into 3 retreatment groups (n=10). The gutta-percha was removed using Protaper retreatment files, K3 and Hero Shapers. Teeth were then evaluated using radiographs. Results: Comparing the ratio between clean canals Protaper and K3 showed better debris removal as compared to Hero shaper. But no significance difference was found.

Keywords

Gutta Percha, Endodontics, RC Sealer.

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Ajay Chhabra ¹, Varun Jindal ¹, Gurkirat Singh Grewal ¹, Harleen Kaur ¹, Sashi Paul ¹

Affiliations
1 Department of Conservative Dentistry, Bhojia Dental College and Hospital, Distt. Solan, Himachal Pradesh, IN

Abstract

The determination of working length in one of the most important steps in ischolar_main canal treatment. Failure in determining the correct working length increases the failure probability of RCT. The anatomic apical constriction is located approximately 0.5-1 mm short of major foramen and this makes it difficult to accurately localize the foramen and constriction radiographically. Electronic apex locators are a boon in locating anatomic apex. However it requires intensive practical exercises, before performing endodontic procedures on patients for the first time. The major challenge is to simulate a condition that helps students to transfer their knowledge acquired from pre-clinical labs to the clinical setups. The aim of this study is to develop an accurate, reliable endodontic teaching model which enables the use of EAIs to allow accurate evaluation of endodontic working length.

Keywords

Tooth Apex, Electronics, Radiography.

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Anjali Shrivastava Vats ¹, Tanvir Singh Teja ¹, Ankur Vats ¹, Gurkirat Singh Grewal ¹, Suchi Aggarwal ¹, Shashi Paul ¹

Affiliations
1 Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, IN

Abstract

From the past several years, there have been numerous studies that describe the morphology of teeth, including mandibular first molars. This tooth presents a high rate of intercanals and anastomosis, mainly in the apical 5 mm, which presents a clinical challenge in terms of cleaning and disinfection. A missed canal can lead to failure of endodontic therapy. Therefore every effort must be made to locate additional canals if any. This case report shows a variation in conventional anatomy in mandibular first molars.

Keywords

Mandibularfirst Molars, Middle Mesial Canal, Cone Beam Computed Tomography, Dental Operating Microscope.

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Gurkirat Singh Grewal ¹, Ajay Chhabra ¹, Varun Jindal ¹, Simran Pal Singh Bindra ¹, Vandana Chhabra ², Damanpreet ¹

Affiliations
1 Department of Conservative Dentistry and Endodontics, Bhojia Dental College and Hospital, Himachal Pradesh, IN
2 Department of Oral and Maxillofacial Surgery, SKSS Dental College, Punjab, IN

Abstract

Aim: The aim of this study was to investigate the ischolar_main canal morphology of mandibular premolars in Northern region of India using a decalcification and clearing technique. Method: Three hundred extracted human mandibular premolars, collected from dental clinics within North India were selected for this study. Following pulp tissue removal, India ink was injected into the ischolar_main canals and the teeth were decalcified with 5% nitric acid, dehydrated with ascending concentrations of alcohol and rendered clear by immersion in methyl salicylate. Cleared teeth were examined under 5X magnification and the following features were evaluated: (i) number and type of ischolar_main canals; (ii) presence and location of lateral canals and; (iii) location of apical foramina. Results: 84.2% of the specimens exhibited Type I canal pattern. Type VIII was not observed in any of the specimens. The lateral canals were in the apical third in 78.7% of the specimens followed by middle third in 16.5% and the cervical third in 4.7%. 82.7% of the specimens showed lateral position of the apical foramen. Conclusion: Mandibular premolar teeth present a wide variety of radicular features, with one ischolar_main and one canal being found in majority of the cases. An accurate knowlegde of the morphology of the ischolar_main canal is essential for proper diagnosis and successful treatment of endodontic cases.

Keywords

Mandibular Premolars, Root Canal, Morphology, Vertucci's Classification, Tooth Clearing.

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