68 research outputs found
Oral manifestations of Type I Neurofibromatosis in a family
No full textNeurofibroma is a benign peripheral nerve sheath tumor. It is one of the most frequent tumors of neural origin and
its presence is one of the clinical criteria for the diagnosis of neurofibromatosis type I (NF-I). Neurofibromatosis
type I is an autosomal dominantly inherited disease due to an alteration in the long arm of chromosome 17. About
50% of NF-I patients have no family history of the disease. NF-I patients have skin lesions (café au lait spots and
neurofibromas) as well as bone malformations and central nervous system tumors. Diagnosis is based on a series of
clinical criteria. NF-I presents with certain definite oral manifestations which confers to the dentists a major responsibility for accurate diagnosis and report of the disease. The paper aims to highlight the role of an oral diagnostician
in first recognition of NF-I in a family via manifestations in the oral cavit
A study on the radiographic features of jaws and teeth in patients with thalassemia major using orthopantomograph
No full textAims and Objectives: Thalassemia is the most common gene disorder caused by mutations that decrease the rate of synthesis of α- or β-globin chains. Every year approximately 100,000 children with thalassemia major are born the world over, of which 10,000 are born in India. This study aimed to compare the radiographic findings of jaws and teeth, as well as crown body and root lengths of the mandibular first permanent molar in thalassemia major patients. Materials and Methods: Panoramic radiographs of 50 thalassemia major patients and 50 controls were made. The radiological changes in the jaws and teeth and the dimensional changes in the teeth were evaluated and compared between the two groups. Two observers were involved in evaluating the specific changes and findings were subjected to statistical analysis using chi-square test (χ2 ) test. Differences in crown body height, root length, and crown:root (C:R) ratio were found using independent t-test. Results: A significant difference was found between the two groups in the occurrence of short spiky roots, taurodontism, faint lamina dura, large bone marrow spaces, obliteration of maxillary sinus (haziness), indistinct inferior alveolar canal, thin mandibular cortex (P < 0.001), nutrient canals (P < 0.02), and between mean crown body and root values of the two groups (P < 0.05). However, there was no statistically significant difference in prominent antegonial notch (P = 0.860) and C:R ratio (P = 0.989). Conclusion: Taurodonts, short spiky roots, thin mandibular cortex, enlarged bone marrow spaces, and obliterated maxillary sinuses were found to occur with high frequency in thalassemia major, followed by indistinct inferior alveolar canal and attenuated lamina dura
Adenoid cystic carcinoma of hard palate: Case report with emphasis on diagnostic approach
No full textClassification bias in commercial business lists for retail food stores in the U.S.
No full textAbstract Background Aspects of the food environment such as the availability of different types of food stores have recently emerged as key modifiable factors that may contribute to the increased prevalence of obesity. Given that many of these studies have derived their results based on secondary datasets and the relationship of food stores with individual weight outcomes has been reported to vary by store type, it is important to understand the extent to which often-used secondary data correctly classify food stores. We evaluated the classification bias of food stores in Dun & Bradstreet (D&B) and InfoUSA commercial business lists. Methods We performed a full census in 274 randomly selected census tracts in the Chicago metropolitan area and collected detailed store attributes inside stores for classification. Store attributes were compared by classification match status and store type. Systematic classification bias by census tract characteristics was assessed in multivariate regression. Results D&B had a higher classification match rate than InfoUSA for supermarkets and grocery stores, while InfoUSA was higher for convenience stores. Both lists were more likely to correctly classify large supermarkets, grocery stores, and convenience stores with more cash registers and different types of service counters (supermarkets and grocery stores only). The likelihood of a correct classification match for supermarkets and grocery stores did not vary systemically by tract characteristics whereas convenience stores were more likely to be misclassified in predominately Black tracts. Conclusion Researches can rely on classification of food stores in commercial datasets for supermarkets and grocery stores whereas classifications for convenience and specialty food stores are subject to some systematic bias by neighborhood racial/ethnic composition.</p
Non-Syndromic Hypodontia: A Case Report
No full textHypodontia is the most common dentofacial anomaly observed in humans. It can be syndromic or an isolated trait. Missing teeth not only affects functionality of dentition but also aesthetically looks unpleasing. In this case report, a 12 year old girl is presented with agenesis of four permanent teeth. On examination, patient was found to be suffering from non syndromic hypodontia. Restorative and Prosthetic treatment was done to rehabilitate the cas
Unilateral Mandibular Condylar Hyperplasia
No full textMandibular condylar hyperplasia is a relatively rare condition with uncertain etiology affecting the condylar head, neck and many a times body and ramus of mandible. The condition causes facial asymmetry, deviation of the jaw, occlusal derangements and articular dysfunction. Radiographic examination plays a critical role in establishing a correct diagnosis. Bone scintigraphy scan has been found to be effective in direct assessment of condyar activity which aids in proper treatment planning. Here, we report a case of unilateral condylar hyperplasia in a 31year old male patient which was diagnosed and corrected with the help of appropriate radiographic examination.</jats:p
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