ABSTRACT
Abstracts: Background: To compare the microhardness and solubility of temporary restorative materials after thermocycling. Objective is to evaluate and compare the solubility of temporary restorative materials after storage in water and to evaluate and compare micro hardness of temporary restorative materials after thermocycling. Methodology: Forty specimens will be prepared for the study. Specimens are prepared according to following four groups.(n=10). Group I – Cavit, Group II - MD Temp, Group III-Coltosol, Group IV – TMP- RS. All the temporary restorative material are manipulated according to manufacturer’s instructions in the stainless steel moulds. All the samples are measured by weight. They are stored in distilled water for 7 days and again they are measured by weight after 7 days. The change in weight is evaluated. All the samples are thermocycled at 4 & 56 degree celsius with a dwell time of 60 seconds for 100 times. After thermocycling micro hardness is calculated by Vickers hardness test of all samples. Results: The study gives highly significant result with p value less than 0.001 of both solubility and micro hardness difference as detailed below. The least solubility is with Cavit G with value 0.011 followed by Coltosol F (0.039), TMP-RS(0.054) and MD Temp(0.122). The least change in micro hardness is with Cavit-G(13.48) followed by Coltosol F(15.54), MD Temp(18.07) and TMP-RS(20.41). All values are compared using one way ANOVA (p<0.001 highly significant). Conclusion: Within the limitations of study, Cavit-G has least solubility after storage in water and highest microhardness after thermocycling among four different temporary restorative materials.
ABSTRACT
Background: Oral sub mucous fibrosis (OSMF) is a chronic, insidious oral mucosal condition affecting the most parts of the oral cavity with high malignant transformation rate triggered by areca nut chewing, nutritional deficiencies, immunologic processes, and genetic predisposition. OSMF causes significant haematological abnormalities resulting in change in levels of various elements. Aim and Objectives: The aim of this study was to estimate the haemoglobin and iron levels in serum among patients with oral sub mucous fibrosis and to compare the values with healthy subjects. Materials and Methods: In this clinical study 50 patients who were diagnosed histopathologically with OSMF and 50 healthy individuals will be included, and the values of haemoglobin levels will be estimated using Sahli's serum iron by Ferrene methods. Results: OSMF patients showed significantly lower levels of haemoglobin and serum iron when compared with the healthy subjects. Conclusion: The present study shows the serum iron assessment for patients with oral sub mucous fibrosis. Determining iron status is a part of biochemical assessment, which may be of proactive intervention for high-risk groups. It is suggested that the biochemical assessment of oral precancerous conditions may help in early diagnosis and prognosis. It is also of key importance that iron therapy should be instituted parallel with the initial diagnosis along with a proper balanced diet, as a part of the overall treatment of oral sub mucous fibrosis with other modes of treatment. This helps to stop the further progression of the condition.
ABSTRACT
Traumatic bone cyst(TBC) is rare cyst .it is also known as FALSE CYST because it does not have epithelial lining. Causes of TBC is unknown , but number of patients have history of prior trauma. It is more common in mandible with slight predilection to male.TBS of the jaws are often polymorphic, show scalloped borders when located between the teeth roots, are devoid of an epithelial lining, and are usually empty or contain blood or a straw-coloured fluid. The numerous synonyms referring to these lesions reflect their uncertain nature (eg , solitary bone cyst, simple bone cyst). Histology usually shows fibrous connective tissue or only bone.