RESUMO
Pursuing a proficient age estimation methodology introducing novel radiographic methods remains an ongoing and demanding aspect of forensic and medicolegal research. In 2017, Roberts GJ et al. (J Forensic Sci 62(2):351-4, 2017) described a new radiographic method, i.e., root canal width (RCW) patterns to assign a subject to above 18-year-age threshold. Since then, few researchers have investigated the validity of this radiographic method in other populations. The present study aimed to test the usefulness of these RCW patterns in predicting 18 years in a sample of South Indian juveniles and sub-adults aged between 16 and 23. Descriptive analysis revealed that pattern-A was initially observed at a minimum age of 16.08 and 16.22 years in males and females. Pattern-B at 16.31 years in males and 16.22 years in females, while pattern-C was initially recorded at 18.73 years in males and 19.01 years in females, respectively. In summary, if an individual, regardless of sex, exhibits a fully-formed (apex closed) mandibular first, second, and third molars and concurrently displays RCW-C, there is a strong likelihood that the person has exceeded the legally relevant age of 18 years. However, due to higher rate of technically unacceptable errors (adults wrongly identified as individuals below 18 years), reliance on this method alone should be restricted, and it is advisable to combine it with other methods.
Assuntos
Determinação da Idade pelos Dentes , Cavidade Pulpar , Mandíbula , Dente Molar , Radiografia Panorâmica , Humanos , Determinação da Idade pelos Dentes/métodos , Masculino , Adolescente , Feminino , Adulto Jovem , Índia , Dente Molar/diagnóstico por imagem , Mandíbula/diagnóstico por imagem , Mandíbula/anatomia & histologia , Cavidade Pulpar/diagnóstico por imagem , Odontologia Legal/métodosRESUMO
AIMS AND OBJECTIVES: A keratocystic odontogenic tumour (KCOT) is a benign uni- or multicystic, intraosseous tumour of odontogenic origin, with a characteristic lining of parakeratinized stratified squamous epithelium and potential for aggressive, infiltrative behaviour. Various studies in hamsters showed that, alpha-Tocopherol, which is an active biological form of Vitamin E, is a potent antioxidant known to inhibit tumour formation and also regression of established tumours. So, the aim of the present pilot study was to assess the levels of Alpha-Tocopherol(Vitamin E) in Patients with KCOT and compare them with Vitamin E levels in normal healthy individuals. MATERIALS AND METHODS: A sample of 20 individuals were taken and Alpha Tocopherol levels in serum were assessed. Independent sample t test was used to analyse the data. Serum Vitamin-E levels were found to be decreased in KCOT cases. RESULTS: Mean Vitamin-E level was found to be decreased (mean + S.D. = 10,549.34 +/- 2494.21 ng/mL) as compared to healthy controls (mean + S.D. = 13,982.42 +/- 2178.02 ng/mL). The reduction in serum vitamin E level was statistically significant (P < 0.05). CONCLUSION: The reduction in Vitamin E levels in KCOT patients might be suggestive of the possible interrelation between Vitamin E and KCOT invivo. Also, increase in intake of Vitamin E might help in reducing the risk of recurrence in KCOT by reducing the dysregulation of Cyclin D1 and Down-Regulation of mutant p53.
Assuntos
Tumores Odontogênicos/sangue , alfa-Tocoferol/sangue , Biomarcadores Tumorais/sangue , Cromatografia Líquida , Estudos Transversais , Feminino , Humanos , Masculino , Tumores Odontogênicos/patologia , Projetos Piloto , Espectrometria de Massas em TandemRESUMO
Actinomycosis is a chronic granulomatous infection caused by Actinomyces species which may involve only soft tissue or bone or the two together. Actinomycotic osteomyelitis of maxilla is relatively rare when compared to mandible. These are normal commensals and become pathogens when they gain entry into tissue layers and bone where they establish and maintain an anaerobic environment with extensive sclerosis and fibrosis. This infection spreads contiguously, frequently ignoring tissue planes and surrounding tissues or organ. The portal of entry may be pulpal, periodontal infection, and so forth which may lead to involvement of adjacent structures as pharynx, larynx, tonsils, and paranasal sinuses and has the propensity to damage extensively. Diagnosis is often delayed and is usually based on histopathology as they are cultured in fewer cases. The chronic clinical course without regional lymphadenopathy may be essential in diagnosis. The management of actinomycotic osteomyelitis is surgical debridement of necrotic tissue combined with antibiotics for 3-6 months. The primary actinomycosis arising within the maxilla with contiguous involvement of paranasal sinus with formation of oroantral fistula is rare. Hence, we present a 50-year-old female patient with chronic sclerosing osteomyelitis of maxilla which presented as oroantral fistula with suppurative and sclerotic features.
RESUMO
Introduction: Mucoepidermoid carcinoma (MEC) is the most common salivary gland malignancy. The majority of these tumors arises in the parotid and minor salivary glands but may rarely develop intraosseously. Primary intraosseous mucoepidermoid carcinoma (PIOC) of the jaw bones is an extremely rare malignant salivary gland tumor. Very few cases have been reported in the literature to date. Case report: The current manuscript highlights clinical and radiographic features of a rare case of PIOC in a 32 year old Indian female patient. Conclusion: All the dental practitioners should be aware of the protean features of central MEC. These lesions should be included in the differential diagnosis of unilocular and multilocular radiolucent lesions of the jaws. An early and accurate diagnosis is important so that the neoplastic transformation must be identified and treated effectively.