Type I Lip Patterns among Medical Students of a Medical College.

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. Keywords: biometric identification; forensic science; lips; medical students; photography.

The Morphological Variation of the Soft Palate in Hospital Visiting Patients.

BACKGROUND: The soft palate anatomy of individuals can have a range of morphologies. Cephalometric analysis is a low-cost approach to analyze the soft palate in patients with or without developmental abnormalities. METHODS: The lateral cephalogram of the patients visiting Tribhuvan University Teaching Hospital, Institute of Medicine for various dental treatment purposes was evaluated. The soft palate was delineated on the radiographs by sketching the soft palate's contour along its radiolucent outline using the curve lines and connectors of Microsoft PowerPoint. The soft palate was then categorized according to the study by You M et al. Results: The different types of soft palate morphology observed in the study were rat tail (42.4%), leaf-like (40.8%), butt-like shape (8.9%), straight-line (4.7%), s-shaped (1.9%), and crooked (0.9%). The males had rat-tail (44.4%), leaf-like (41.1%), butt-like shape (8.4%), straight-line (3.9%), s-shaped (1.3%), and crooked (0.6%), whereas the females had rat-tail like (40.6%), leaf-like (40.6%), butt-like shape (9.5%), straight-line (5.6%), s-shaped (2.5%), and crooked (1.2%) types of soft palate. CONCLUSIONS: The rat-tail form of the soft palate was the most prevalent, followed by the leaf-like in both sexes. The least common type was the crooked form. This study found no evidence of sexual dimorphism.

Mean Mesiodistal Width of Canine in Patients Visiting a Tertiary Care Centre: A Descriptive Cross-sectional Study.

Introduction: The measurement of the teeth is one of the most reliable method of identification. The teeth represent the most durable, resilient, and chemically stable part of the skeleton. The comparison of tooth dimensions is one of the tools of sex determination. Canines, in particular, are found to have the greatest degree of sexual dimorphism. The aim of the study was to determine the mean mesiodistal width of canines in patients visiting a tertiary care centre. Methods: This descriptive cross-sectional study was done among patients visiting a tertiary care centre from 25 August 2021 to 28 December 2021. The ethical approval was taken from the Institutional Review Committee [Reference number: 61 (6-11)E2 078/079]. The maximum mesiodistal width of the permanent maxillary canine was measured by a digital vernier caliper. The formula given by Garn and Len was used to calculate sexual dimorphism. Convenience sampling was used. Point estimate and 95% Confidence Interval were calculated. Results: Among 104 maxillary casts studied, the mean mesiodistal width of the maxillary canine was 7.85±0.45 mm (7.76-7.93, 95% Confidence Interval). The mean mesiodistal width of the right maxillary canine in males and females were 7.90±0.48 mm and 7.83±0.45 mm respectively and that of the left maxillary canines in males and females were 7.92±0.44 mm and 7.75±0.45 mm respectively. The sexual dimorphism in the right and left maxillary canine was seen in 10 (0.96%) and 22 (2.12%) respectively. Conclusions: The mean mesiodistal width of the maxillary canine was similar to other studies done in similar settings. Keywords: canine teeth; maxillary bone; sexual dimorphism.

Knowledge of Oral Cancer among Online Respondent General Dentists: A Cross-sectional Survey.

INTRODUCTION: Oral cancer is a worldwide medical issue with expanding paces of occurrence and rising mortality rates. Oral cancer is the sixth most common cancer in Nepal with a prevalence of 4.6%. Examination of the oral cavity includes evaluating all teeth, supporting tissue, and surrounding oral tissue and recording the condition of these structures. The present study was conducted to find out the knowledge of oral cancer among general dental practitioners responding to a general survey. METHODS: A cross-sectional survey was conducted among general dental practitioners from March 2020 to July 2020 in 234 sample sizes. Convenience sampling technique was used. Data collection was done after taking ethical approval from the Institutional Review committee (Ref no. 10/020). Data collection was done using a self-administered questionnaire through Google forms. Data analysis was done using Statistical Package of the Social Sciences version 20 software. RESULTS: Our study showed that most of the participants i.e. 131 (56.2%) have moderately adequate knowledge about oral cancer. One-hundred and eighty four (78.6%) and 178 (76.1%) identified smokeless tobacco and smoking tobacco as high-risk factors for oral cancer. Two-hundred (85.5%) participants recognised buccal/labial mucosa as a common site for oral cancer. And, 138 (59.2%) have knowledge about early detection of oral cancer. CONCLUSIONS: Our study highlights that general dentists have moderate knowledge regarding oral cancer and. Study also states that more practical knowledge and training should be included in undergraduate programs.

Calcifying Epithelial Odontogenic Tumor: A Case Report.

Calcifying epithelial odontogenic tumor is a rare benign odontogenic tumor which accounts for approximately 1% of the entire odontogenic tumor. It was firstly described by Pindborg, and thus, is also referred to as the "Pindborg tumor". Histologically, Pindborg tumor consists of three distinct histological compo-nents: sheets of polyhedral epithelial cells, amyloid like deposits, and calcifications. This case report describes a case of Calcifying epithelial odontogenic tumor in 26 years old female patient presented with the swelling in right posterior region of mandible. Taking into account of the aggressive nature of the lesion segmental resection of the mandible followed by reconstruction was planned for treatment. This case report highlights the importance of appropriate clinical, radiographical and histological correlation for the correct diagnosis and treatment of Pindborg tumor.

Glandular Odontogenic Cyst in Maxilla: A Case Series.

Glandular odontogenic cyst is rare phenomenon with 0.012% to 0.03% frequency of all jaw cysts and worldwide prevalence of 0.17%. Diagnosis of Glandular odontogenic cyst, well known for its aggressive growth potential and high rate of recurrence, is very crucial. This report presents cases of two 50-year old individuals with Glandular odontogenic cyst presenting as a radiolucent lesion of maxilla. Final diagnosis was made on the basis of histopathological features and further confirmed by immunohistochemical analysis. Keywords: histology; immunohistochemistry; odontogenic cyst.

Prevalence of Oral Mucosal Lesions in a Tertiary Care Dental Hospital of Kathmandu.

INTRODUCTION: Oral mucosa can be affected by a variety of soft tissue lesions and conditions. Benign as well as malignant lesions of oral cavity are common. Squamous cell carcinoma is one of the commonest malignancies. The present retrospective study was undertaken to study the prevalence of various oral mucosal lesions in a tertiary care dental hospital of Kathmandu. METHODS: This retrospective study was carried out in the Department of Oral and Maxillofacial Pathology at Kantipur Dental College and Teaching hospital from January 2015 to January 2017. The study included biopsy specimen from the oral cavity. The parameters included in the study were age, gender, site of the lesion and histopathological diagnosis. The data collected was statistically analyzed. RESULTS: A total of 111 biopsy cases were included in the present study. Out of which, there were 16 (14.4%) cases of non-neoplastic and 16 (14.4%) cases of benign pathology. The oral cavity lesions were commonly seen in age range between 6-74 years where males 59 (53.2%) were mostly affected. The most common site for oral lesion was buccal mucosa 23 (20.7%) and anterior gingiva 23 (20.7%). Total 15 (13.5%) cases of oral squamous cell carcinoma were seen as the predominant malignancy affecting in the vestibular region 8 (7.2%). CONCLUSIONS: The present study shows benign as well as the non-neoplastic lesions were more prevalent in oral mucosa with the buccal mucosa and anterior gingiva as the commonest site of occurrence.