ABSTRACT
BACKGROUND: Malocclusion is defined as an occlusion in which there is malrelationship between the arches in any of the three planes or anomalies in tooth position beyond normal limits, the etiology being multifactorial. Malnutrition may also be allied to malocclusion, predominantly crowding, due to insufficient space for the teeth to erupt in the correct place. OBJECTIVES: The present study was conducted to investigate the role of diet as an etiological factor in the occurrence of malocclusion. MATERIALS AND METHODS: Two hundred and twenty malnourished subjects were examined by a single experienced dental professional and the occlusal relationships were evaluated at a centric occlusion position by instructing the subject to swallow and then bite on the teeth together. RESULTS: Ninety-eight subjects (44.54%) had Angle's Class I malocclusion with crowding: 18 (8.1%) presented with spacing. Angle's Class II division 1 malocclusion was evident in 52 subjects (23.63%), while Class II division 2 in 38 subjects (17.27%). Only 14 subjects (6.3%) presented with Angle's class III malocclusion. CONCLUSION: Dietary factors and dentition measures from a subset 220 malnourished subjects found that malnourished subjects with basal metabolic index <18.5 had statistically significant relationships with the crowding variables.
ABSTRACT
AIM: To determine the preponderance of oral mucosal lesions and conditions in patients receiving highly active antiretroviral therapy (HAART) for Human Immunodeficiency virus (HIV). MATERIAL AND METHODS: Patient tested Seropositive for HIV and on HAART therapy were clinically examined to evaluate prevalence of oral lesions. RESULTS: In the pool of 152 HIV positive patients in the study, age ranged from 7 to 71 years, 67 were males and 85 females. The duration of the HAART medication was 43 months. Oral lesion was present in 51.32% of patients related to infection. Oral lesions seen in descending order of frequency were periodontitis, mucosal hyperpigmentation, acute gingivitis, oral candidiasis, linear gingival erythema, stomatitis, and nonspecific ulcers. Totally, 48.68% of patients had no oral lesions. CONCLUSION: Majority of the HIV patients on HAART exhibited periodontitis (30.77%), mucosal hyperpigmentation (17.44%), gingivitis (10.77%), anemic stomatitis (11.28%), and other oral lesions accounted to 29.74% which may be attributed to Anti Retro Viral Therapy.
ABSTRACT
AIM: The present study was conducted to determine the most accurate bite mark overlay fabrication technique by studying two physical characteristics, i.e., area and rotation of biting edges of anterior teeth of thirty volunteers. The objective of the study was to evaluate the reliability and efficacy of five commonly used methods of human bite mark overlays using two dimensional (2D) digital images of dental study casts as a gold standard, to rank different methods according to statistically based determination of relative accuracy of each method and to determine its feasibility in Forensic science. MATERIALS AND METHODS: Overlays were produced from the biting surfaces of six upper and six lower anterior teeth of 30 volunteers using the following five methods: a) hand tracing from study casts, b) hand tracing from wax impressions, c) xerographic method, d) radiopaque impression method and e) 2D computer-based method. Area of the biting edges of the anterior teeth and relative rotation of each anterior tooth were measured and compared. RESULTS: The xerographic method was determined to be the more accurate method with respect to tooth area and rotation. Hand tracing methods, from either wax impressions of teeth or directly from study casts, were determined to be inaccurate and subjective. CONCLUSIONS: It is recommended that forensic odontologists discontinue the use of hand tracing overlays in bite mark comparison cases as there is lot of scope for manipulation and observer bias.
