Comparison Of The Force Deterioration Of Different Orthodontic Elastomeric Materials In Artificial Saliva: An In Vitro Study

The orthodontist must be able to choose an elastic band with force-extension characteristics that are most suitable for the particular tooth movement required. From a clinician view it would be mandatory not only to know the clinical aspect of these elastics but also their basic properties, in order to extract the most out of these polymers. Stretching of elastics are thought to be the primary cause of force degradation of orthodontic elastics but there is evidence of in-creased force degradation of elastics when exposed to various types of substances like artificial saliva, phosphoric acid and citric acid. Orthodontic elastics have received mixed reactions of practitioners as reported by the vendors of ortho-dontic supplies. The present study is designed to compare the force deterioration of different orthodontic elastomeric materials in artificial saliva medium. There was a force deterioration over time in all materials, being greatest on the seventh day of the experiment, especially more in the chains; From the third to the fourth week there was no noticea-ble force degradation in either group; By the end of the experiment, modules showed less deterioration of the force compared to the chains and threads.

Stature Estimation Of The Individual Using Arm Span Measurement In Jalgaon Region Of North Maharashtra

Height is one of the important parameter for identification of the individual. The study was undertaken toestimate height of individual from arm span by regression equation and to compare it with measured height. Thestudy was carried out on 50 adult males and 50 adult females from Jalgaon, Maharashtra over a period of threemonths from February to April 2018. The population was randomly selected for this study. In present study,correlation coefficient between height and arm span in males is 0.73 while in females it is 0.69.The Regressionequation derived from arm span in male is Height = 47.26 + (0.72 X arm span) and in females Height =57.32 +(0.64X arm span). The derived equations were tested and difference between measured and estimated height wasfound non-significant.

Study Of Coronary Ostia In Preserved Human Cadaveric Heart Specimens In Western Maharashtra By Dissection Method

Introduction: Coronary artery disease is responsible for 70% cases of sudden cardiac deaths. Small coronaryostia may cause significant difficulty in canulation of it during diagnostic and therapeutic procedures. Highorigin of coronary arteries increases risk of myocardial ischaemia and sudden death. Considering thesesignificance of variations of coronary ostia in cardiac procedures, detailed study was undertaken so it would beof use to cardiologists and interventional radiologists.Material and Methods: Sample size for the study comprised of 50 human cadaveric heart specimens. Dissectionmethod was adopted.Observation and Results: In anterior aortic sinus, 41 specimens had single ostium, while 09 specimens showedtwo separate ostia. The mean of ostium diameter of right coronary artery was found to be 2.84 mm with astandard deviation (S.D.) of +0.85 mm. The mean distance of main ostium of right coronary artery fromsupravalvular ridge was found to be 1.23 mm. with a S.D. of +0.32 mm. In case of accessory ostia in anterioraortic sinus, the mean diameter was found to be 1.32 mms. with a S.D. of +0.20 mms. The mean distance of theseostia from supravalvular ridge was found to be 1.16 mms. with a S.D. of +0.17 mms. In left posterior aortic sinus,49 specimens had single ostium, while 01 specimen had two separate ostia. This ostium was 0.8 mms. indiameter at a distance of 02 mms. below from supravalvular ridge. The mean of ostium diameter of left coronaryartery was found to be 3.31 mm with a S.D.of+0.52 mm. The mean distance of main ostium of left coronary arteryfrom supravalvular ridge was found to be 1.40 mm. with a S.D. of +0.27 mm.Conclusion: the study provides data on coronary morphometry and topography. It provides basis for understandingthe normal variants for determining incidence of anomalies and for evaluating value of screening of suchanomalies.

Epidural Anaesthesia for LSCS in Hypertrophic Cardiomyopathy: A Better Choice.

Hypertrophic cardiomyopathy (HCM) is a complex cardiovascular disorder with autosomal dominant inheritance, having an incidence of 0.1-0.5% in pregnant females. Anesthetic management of female with HCM posted for caesarean section is a challenge, as even minor alteration in hemodynamic status during the perioperative period may endanger the life of the patient. Here we report successful management of one patient with HCM for LSCS using epidural anaesthesia.

A Large Superficial Dissecting Sublingual Ranula Crossing the Midline: Our Experience.

Ranula is a cystic lesion arising in the oral cavity in relation to the sublingual gland. Typically ranulas are unilateral although there has been a report of superficial dissecting ranula crossing the midline thus presenting as a bilateral lesion. This article is about our experience with a similar large right sided sublingual ranula crossing the midline in a 17 year old female who underwent a complete excision of the lesion along with removal of ipsilateral sublingual gland which is the accepted treatment at present.

Pleural fluid analysis with traditional and additional parameters.

36 patients with pleural effusion were studied clinically with pertinent investigations and pleural fluid analysis. The pleural fluid analysis was done with routine protocol including study of traditional parameters like protein and cell count and additional parameters like pleural LDH, GOT(AST) and their ratio with serum LDH and GOT respectively. The utility of these parameters was studied critically. Amongst the isolated parameters cell count enjoyed highest (100%) specificity and positive predictive value. LDH ratio had highest (79.1%) sensitivity. Pleural LDH showed highest (52.6%) negative predictive value and diagnostic accuracy (69.4%). Amongst the combination of two parameters protein with LDH ratio had highest (87.5%) sensitivity, cell count with LDH ratio showed highest specificity (100%), positive predictive value (75%) and diagnostic accuracy (88.9%). Amongst the combination of three parameters pleural protein and cell count with LDH ratio and GOT ratio respectively enjoyed best sensitivity (87.5%), specificity and positive predictive value (100%), negative predictive value (80%) and diagnostic accuracy (90.6%). Similarly competent were the combinations offour parameters namely p rotein and cell count with LDH and its ratio and GOT and its ratio respectively. Combination of all parameters exhibited similar degree of utility.

Hepatoprotective and antioxidant activities of flowers of Calotropis procera (Ait) R. Br. in CCl4 induced hepatic damage.

Hepatoprotective activity of 70% ethanolic extract of flowers of C. procera was studied against CCl4 induced hepatic injury in albino rats and mice. In addition, antioxidant activity was studied by in vitro models. Pre-treatment with 70% ethanolic extract (CPA) reduced the biochemical markers of hepatic injury like serum glutamate pyruvate transaminase, serum glutamate oxaloacetate transaminase, alkaline phosphatase, bilirubin, cholesterol, HDL and tissue glutathione (GSH) levels. Similarly pretreatment with CPA reduced the CCl4 induced elevation in the pentobarbitone sleeping time. Histopathological observations also revealed that pretreatment with CPA protected the animals from CCl4 induced liver damage. CPA demonstrated dose dependant reduction in the in vitro and in vivo lipid peroxidation induced by CCl4. In addition it showed dose dependant free radical scavenging activity. The results indicate that flowers of C. procera possess hepatoprotective property possibly because of its anti-oxidant activity. This property may be attributed to the quercetin related flavonoids present in the flowers of Calotropis procera.