Browsing by Author "Shrestha, Kabir"
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Publication Prevalence of Variants of Mandibular Second Premolar in Medical Students: A Descriptive Cross-sectional Study(Institute of Medicine, 2025) Mehta, Prem Kumar; Shrestha, Kabir; Nepal, Prashuv; Singh, Archana Kumari; Dahal, Samarika; Khapung, Anju; Baral, RadhaABSTRACT Introduction: The mandibular premolars have shown diversity in cusp morphology, although they are included under the bicuspid. This has been useful in anthropology and forensic odontology as supporting evidence. This study aimed to determine the prevalence of different types of mandibular second premolars among medical students. Methods: A descriptive cross-sectional study was conducted among 255 medical students after obtaining ethical approval. The number of cusps and the groove pattern present on the mandibular second premolar were examined and recorded using a sterile mouth mirror and explorer. The data was entered in a Microsoft Excel sheet and analyzed by the Statistical Package for Social Sciences (SPSS) version 27.0. Results; The prevalence of the two-cusp variant 319 (62.5%) was more than the three-cusp variant 191 (37.5%). The most common groove type was H type 198 (38.8%), followed by Y type 191 (37.5%) and U type 121(23.7%). The present study showed that the Y-shaped groove pattern was more common in the right premolar 40% (102), and the H-shaped groove pattern was more common on the left side 42.4% (108). The study showed that two cusp-type premolars are more common on the right and left sides of both genders. This study also revealed that two cusp variants are more common than other variants in different ethnic groups examined on both sides. Conclusion: The most prevalent variant of the mandibular second premolar was the two-cusps type. H-shaped grooves were most common, followed by Y and U-shaped grooves. H-shaped grooves were more prevalent compared to other types in both males and females. Keywords: Anthropology; bicuspids; cross-sectional studies; prevalencePublication Type I Lip Patterns among Medical Students of a Medical College(Nepal Medical Association, 2023) Shrestha, Kabir; Dahal, Samarika; Baral, Radha; Neupane, AbishikhaAbstract Introduction: Identity and identification have long been a source of interest and concern in forensic dentistry, whether in the context of a criminal investigation or the identification of a deceased person. Lip print has demonstrated a high level of potential as one of the best options, as well as its usage as supporting evidence. The aim of this study was to find out the prevalence of Type I lip patterns among medical students of a medical college. Methods: This descriptive cross-sectional study was done among medical students of a medical college from 30 December 2021 to 30 February 2022 after obtaining ethical approval from the Institutional Review Committee. The lipstick was applied in a thin layer uniformly, and the impression was taken with the help of the cellophane tape. The specimens were analyzed and classified based on Tsuzuki and Tsuchihashi's classification. A convenience sampling method was used. The point estimate was calculated at a 95% Confidence Interval. Results: Among 120 medical students, the prevalence of type I lip pattern was 48 (40%) (31.23-48.77, 95% Confidence Interval). Among them, 26 (54.17%) were males and 22 (45.83%) were females. Conclusions: The prevalence of Type I lip pattern among medical students was higher than in other studies done in similar settings.