Relationship between chronic periodontitis and metabolic syndrome: a case-control study

Background: The aim of this case-control study was to investigate the periodontal status of patients with metabolic syndrome compared to general healthy individuals and to determine whether the periodontal status was consistent with the values of the metabolic components.Methods: A total of ninety patients were examined in this study. Group one consisted of forty five patients who were confirmed to have metabolic syndrome and group two consisted of forty five age and sex matched healthy controls. Plaque index, Gingival Bleeding Index (Ainamo & Bay), Probing Pocket Depth (PPD), Clinical Attachment Level (CEJ), total number of missing teeth and the reasons for extraction were also noted. Medical examination and blood investigations included measurement of height, weight, waist circumference, waist-hip ratio, Body-Mass Index (BMI), serum lipid profile, fasting blood glucose and blood pressure. Metabolic syndrome was defined according to NCEP ATP III definition. The results obtained were analyzed statistically using SYSTAT html output.Results: The results of the present study showed that the periodontal condition of group one patients were poor compared to group two patients. The periodontal conditioned worsened with an increase in the metabolic components.Conclusion: Based on the results of our study, it can be concluded that that periodontitis and metabolic syndrome were confounding the systemic effects of each other. Dentists should counsel their patients regarding the health hazards of metabolic syndrome and periodontitis and motivate them to maintain good oral hygiene and follow healthy life-style. Keywords: Chronic periodontitis, Metabolic syndrome (MS), Systemic disease

Genesis and Morphotectonic Characterisation of Crescent- Shaped feature from Alcock Rise, Andaman Sea

Study of 98 crescent shape depressions over Alcock Rise, Andaman Sea were reported for the first time in between water depth -500 and -2000 m using multibeam swath bathymetry data. These gigantic depressions have crescent length (CL) varies from 600 to 3800 m and width (CW) varies from 200 to 2500 m with an average central depression of 500 m. Detailed parametric characterization reveals that slope and axial ratio of these crescentic structures have no direct relationship with general shape and steepness of their escarpment. Moreover, spatial distribution of these structures show a clustering of elongated crescent with higher crescent length to width ratio in NW margin of Alcock Rise compare to centre. This change in shape from open elliptical to semicircular depression probably suggests that earlier formed open crescents were modified at later stage to semicircular depressions. As observed in the seismic data, the formation of the crescentic depressions were initiated by the normal fault in-association with major dextral transform fault and subsequently its geometry was modified by local transpression along with seismicity induced slumping and bottom current scouring from the weaker zones. So, tectonics and bottom current activity provides simpler explanation for the formation of crescentic structure over Alcock Rise.Keywords: Crescentic depression, Alcock Rise, Swath bathymetry, Bottom current, Normal fault