Context:Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship.Aims:The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands.Materials and Methods:Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ‘t’ test at 95% level of confidence (P=0.05).Results:The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %.Conclusions:Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands.

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Background: Diabetes Mellitus is an important health problem affecting major population worldwide. It is characterized by absolute or relative deficiency in insulin secretion and/or insulin action associated with chronic hyperglycemia and disturbances of carbohydrate, lipid and protein metabolism. The prevalence of type II diabetes mellitus for all age groups worldwide was estimated to be 2.8% in 2000 and likely to increase to 4.4% in 2030. The number of people with diabetes is projected to rise from 285 million adults in 2010 to 439 million adults in 2030. In India, it is estimated that presently 31.7 million individuals are affected by this deadly disease, which are likely to increase to 79.4 million by the year 2030. Diabetes patients with nephropathy have higher prevalence of thyroid disorder than type 2 DM without nephropathy which may have an influence on diabetic management. Diabetic women are frequently affected than men and hypothyroidism is more common than thyrotoxicosis. Methods: In our study 100 patients with type 2 DM attending Guru Nanak Dev hospital attached to GMC Amritsar were recruited. These patients were divided into two groups of 50 patients each. Group 1 consisted of patients of type 2 DM without nephropathy and group 2 consisted of patients of type 2 DM with nephropathy. Results: Out of 100 patients thyroid dysfunction was more prevalent in diabetic nephropathy group as compared to diabetic without nephropathy group. P-value for thyroid dysfunction in diabetic nephropathy was statistically significant. In our study we found a statistically significant correlation between TSH and serum insulin levels in patients with diabetic and diabetic nephropathy. Higher prevalence of thyroid dysfunction like low T3 syndrome and subclinical hypothyroidism was found in women as compared to men. Conclusion: Routine assessment of thyroid hormone level in addition to other biochemical parameters in the early stage of diabetes and diabetes nephropathy will help in the management of those patients who are difficult to manage.

BACKGROUNDThe objective of this study is to assess the association between serum uric acid and risk of stroke incidence and mortality along with its correlation with other risk factors, because hyperuricaemia is hypothesised to be a risk factor for stroke, but to date results from observational studies are conflicting. MATERIALS AND METHODSThis prospective study was conducted on 60 patients of acute ischaemic stroke diagnosed on CT scan, admitted in Guru Nanak Dev Hospital attached to Govt. Medical College, Amritsar. Two groups were formed on the basis of serum uric acid levels and they are compared with respect to occurrence of stroke, risk factors and the prognosis at 1-month interval.