Acinic cell carcinoma of the posterior buccal mucosa: A rare case report.

Acinic cell carcinoma (ACC) is a low-grade malignant salivary gland neoplasm that comprises approximately 17% of primary salivary gland malignancies or about 6% of all salivary gland neoplasms. The most common intraoral sites are the buccal mucosa, lips, and palate. The diagnosis of ACC frequently presents difficulties, owing to its great radiological and cytological similarity with benign tumors and with normal acinar component of the salivary gland, respectively. The management of ACC consists of complete surgical excision. Here, we report a case of ACC on the left retromolar trigone, a rare location in a 44-year-old female.

Intraosseous lipoma of the maxillary tuberosity: A rare entity with diagnostic challenge.

Lipoma is called the "universal tumor" or the "ubiquitous tumor" as it occurs anywhere in the body where fat is found. Intraosseous lipoma is a rare lesion that constitutes not more than 0.1% of bone tumors. There are only a few reported cases of intraosseous lipoma of the maxilla in the literature. The diagnosis of intraosseous lipoma of the maxilla may be a challenge, due to its rarity and clinical similarity with many other radiolucent lesions. Therefore, histopathological examination is mandatory. The radiolucent nature and mature adipose tissue admixed with the bony trabeculae confirms the diagnosis of intraosseous lipoma. Here, we report a case of intraosseous lipoma of the left maxillary tuberosity in a 52-year-old male patient.

Nonmetric traits of permanent posterior teeth in Kerala population: A forensic overview.

INTRODUCTION: Dental morphology is a highly heritable characteristic which is stable with time and has a fairly high state of preservation. Nonmetric dental traits have crucial role in ethnic classifications of a population that helps in forensic racial identification purposes. AIMS AND OBJECTIVES: To determine the frequency and variability of possible nonmetric tooth traits using extracted permanent posterior teeth from Kerala population for discerning racial ethnicity. MATERIALS AND METHODS: This qualitative, cross-sectional study was carried out using 1743 extracted intact permanent posterior teeth collected from different dental clinics situated all over Kerala. RESULTS: The more common features on premolars were multiple lingual cusps (31.21%), distal accessary ridges (16.28%) and Tom's root (17.9%). In upper first molars, Carabelli trait expression was 17.78% and other common features included metaconulo, cusp 5 and enamel extensions. CONCLUSION: Posterior tooth traits had variable expression in the study population. Low prevalence rate of Carabelli trait in this study is characteristic of Asian population. This research explored new elements of invaluable tooth traits values to understand racial ethnicity of Kerala population.

Sialadenoma papilliferum: A rare case report and review of literature.

Sialadenoma papilliferum (SP) classified under the ductal papillomas by the WHO is a rare benign tumor of minor salivary glands. It is a rare lesion of salivary glands predominantly affecting the minor glands. It has characteristic exophytic and endophytic clinical growth pattern. Histopathologically, it is characterized by papillary projections supported by fibrovascular connective tissue core and infiltrated with mixed inflammatory cells. The ductal lining epithelium of double-layered cells of luminal layer of tall columnar cells and a basilar layer of small cuboidal cells shows additional papillary projections into the lumen. We report a case of SP of mid palate.

Linear Odontometric Analysis of Permanent Dentition as A Forensic Aid: A Retrospective Study.

INTRODUCTION: Sex determination in forensic anthropology is an essential step for medico-legal purposes and crucial for identification as the number of possible matches is reduced to 50%. Teeth are an excellent material for anthropological, genetic, odontological and forensic investigations as they are known to resist a variety of ante-mortem and post-mortem insults. Sexual dimorphism in tooth size and the accuracy of odontometric sex prediction is found to vary in different population and therefore it is necessary to determine specific population values in order to make identification possible. Hence, the present study was undertaken to evaluate the existence of sexual dimorphism in South Kerala population. AIM: To evaluate and estimate the degree of odontometric sexual dimorphism in all permanent teeth except third molars and the variations in odontometric dimensions between the left and right side teeth of the maxillary and mandibular arches in male and female groups. MATERIALS AND METHODS: The MesioDistal (MD) and BuccoLingual (BL) measurements of 28 teeth were estimated from the preorthodontic casts of 132 subjects; male group (66 males) and female group (66 females) of age range 15-25 years using digital Verniers' Caliper. The data obtained were analysed using SPSS version 17 and the Students' t-test for two independent samples. RESULTS: The MesioDistal (MD) and BuccoLingual (BL) parameters of all permanent teeth in the study group showed sexual dimorphism. Over 39% of the tooth variables showed reverse dimorphism. The comparison of mean values of MD and BL diameters of the maxillary and mandibular, right and left side teeth in male and female groups showed statistical significance in males whereas females show non-significant values in both MD and BL diameters. CONCLUSION: The study showed a varied percentage of sexual dimorphism and variation in the mean values of MD and BL dimensions in males, but not in females between right and left side teeth of the maxillary and mandibular arches of the study population.