Cementoenamel Junction: Morphological Characterization in Nepali Population (original) (raw)
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Aim: The aim of the study was to assess the most common patterns of cementoenamel junction (CEJ) in permanent tooth and most common pattern of CEJ in males and females in permanent tooth. Materials and Methods: A total number of 120 permanent teeth were selected. The ground sections of these teeth were prepared in longitudinal plane. The cementoenamel junction of prepared ground sections was then analyzed and studied. Results: The edge-to-edge pattern of cementoenamel junction was the most common pattern observed, was followed by gap junction, cementum over enamel, and enamel over cementum. In males and females, the most common pattern of CEJ seen was same (edge-to-edge pattern), followed by gap, cementum over enamel, and enamel over cementum. Conclusion: In the present study, out of four patterns of cementoenamel junction, edge-to-edge pattern was the most commonly seen, followed by gap junction, cementum over enamel pattern, and enamel over cementum pattern.
Microscopic Analysis of The Variations of The Cemento-Enamel Junction in Himachali Population
International journal of health and clincal research, 2019
Cemento-Enamel junction is an anatomical point where the enamel of the crown surface connects to the cementum of the root. It lies in a region covered with the gingivalsoft tissue, but with the increasing age and due to many pathological conditions this junction may be exposed to the external environment and sometimes mayprovide a path for bacterial infection into the tooth.Aim: To analyze different types of Cemento-Enamel Junctions in thepopulation of Himachal Pradesh.Methodology: 40 extracted teeth were obtained from various regions of Himachal Pradesh. Ground sections of the tooth were made and analyzed for the type of Cemento-Enamel Junction under a Binocular Microscope.Result: Sharp junction was most frequent type of inter-relation between the two hard tissues in our study followed by Gap junction and Overlap type junction. Though we found cementum overlapping enamel in few cases but we could not find any sample in which enamel was overlapped by cementum. Conclusion: Cemento-En...
Journal of Gandaki Medical College-Nepal
Introduction: Mandibular premolars are considered an enigma in dentistry because of their variability in anatomical and morphological features making it difficult to treat endodontically. This study was conducted to determine the root and canal morphology of mandibular premolars in the Nepalese population by using cone beam computed tomography imaging. Methods: One hundred and thirty-four cone beam computed tomography images of the Nepalese population were collected by convenience sampling method from April 1 to August 31, 2022 in Bir Hospital, Kathmandu, Nepal. A total of 536 premolars (268 mandibular first premolars and 268 mandibular second premolars) were evaluated by two examiners (one endodontist and one oral radiologist). Canal configuration was classified according to Vertucci’s classification. Results: In mandibular premolar teeth, the majority had one root followed by two roots and fused roots. The most common configuration in mandibular premolars was Vertucci’s type I (83...
Dental wear has been used extensively in osteoarchaeological studies as a means of exploring dietary patterns and the use of teeth as tools. The present paper aims to test whether crown height can be predicted for premolars and molars based on the mesiodistal and buccolingual diameters of these teeth at the level of the cementoenamel junction (CEJ). Multiple linear regression was used with crown height as dependent variable and diameters at the CEJ as predictors. Our results found that there are cases where the impact of one predictor appears to be statistically significant. However, even in these cases the 95% confidence interval for the predicted value is so broad that makes the accurate determination of the crown height based on the buccolingual or/and mesiodistal diameters at the CEJ impossible.