University of Khartoum

Canal Configuration and Anatomy of Mandibular First Premolars in a Sample of Sudanese Population-an in Vitro Study

Canal Configuration and Anatomy of Mandibular First Premolars in a Sample of Sudanese Population-an in Vitro Study

Show full item record

Title: Canal Configuration and Anatomy of Mandibular First Premolars in a Sample of Sudanese Population-an in Vitro Study
Author: M.khalafallah, Samra Ibrahim
Abstract: Backgrounds: One of the most important causes of root canal treatment failure is incomplete pulp removal which results in incomplete canal obturation. This is because of lack of knowledge of canal configuration with limited information provided by radiographs. The importance of this research comes from the great variation in root canal configuration of the mandibular 1st premolar. The aim of this study was to investigate the external and internal anatomy of mandibular 1st premolar. Method: Sound sixty three extracted mandibular 1st premolar were collected from adult young patients. Teeth were stored in 10% formaline solution. Access cavity was done for each tooth , then immersed in 5.25% sodium hypochloraite for 4 hours. Teeth were decalcified by immersing in Nitric acid 10% for 3 days followed by 5% for two days. Teeth were dehydrated in ethyl alcohol (70%-95%-100%) for 12 hours. Indian ink was passively injected from the pulp chamber and root canal system using a fine insulin needle until the ink was seen out through the apical foramen. Then teeth were immersed in methyl salicylate solution 98%. Standardized pictures were obtained by digital camera to study canal configuration. The teeth also were studied for root length, root number, root curvature, and position of the apical foramen. Results: The study revealed that Vertucci type I canal configuration represented the highest percentage (63.5%) ,with the presence of the other types except type VII. The average root length varied from 14-19 mm with the mean length 15.8 mm. One rooted mandibular 1st premolars were 51 teeth ( 81.0%) , two rooted were 8 teeth ( 12.7%) , three roots were in three teeth (4.8%) and only one tooth (1.6%) with four roots. Curved in roots were found in 29 teeth ( 46.0%) . Central apical foramen were found in 52 teeth (82.5%). Conclusion: Most of mandi`bular 1st premolars have one root with great variation of root numbers. The majority of mandibular 1st premolars show type I canal configuration according to Vertucci classification.
Description: 58 Pages
URI: http://khartoumspace.uofk.edu/123456789/16973
Date: 2015-11-11


Files in this item

Files Size Format View

This item appears in the following Collection(s)

Show full item record

Share

Search DSpace


Browse

My Account