Comparative evaluation of efficacy of physics forceps versus conventional forceps in therapeutic extractions of premolars: a prospective clinical study

Background: Dental extraction is the removal of a tooth from the oral cavity and is the most common procedure performed in oral surgery. Conventional exodontia tends to cause unnecessary trauma leading to postoperative pain, loss of tissue and stress for the patient. ‘Atraumatic’ dental extraction techniques have nowadays gained popularity and in such case, physics forceps can be helpful in achieving such results. The aim of the study was to evaluate and compare efficacy of physics forceps versus conventional forceps in therapeutic extraction of premolars.Methods: A total of 35 patients requiring extraction of premolars in maxillary or mandibular arch or both arches for orthodontic treatment purpose were included and divided into groups A and B wherein right sided extractions performed with physics forceps were compared with left sided extractions carried out using conventional forceps in terms of time taken for extraction, bone and soft tissue injury, success score and pain assessment.Results: The present study suggested statistically significant difference between both the groups. Time taken for extraction, trauma to gingival tissue, bone loss, and visual analogue scale (VAS) score was significantly lesser with physics forceps group, when compared to conventional forceps group. Moreover no significant difference in success score was noted between both the groups.Conclusions: Physics forceps are comparatively superior to conventional extraction forceps in terms of lesser time taken for the procedure, lesser tendency to induce trauma to both hard and soft tissue and have been found to induce comparatively lesser pain post extraction

Evaluation of bacteriological profile and antibiotic susceptibility pattern of patients with otorrhea in a tertiary care teaching hospital

Background: Otitis media is very common disease in developing country and if not treated properly can lead to hearing loss and serious neurological complications. Its bacteriology and antibiotic sensitivity varies in different population. Thus knowledge of the microbiological pattern with antibiotic susceptibility is important to deliver efficacious treatment of this disease. So, purpose of the present study was to determine the microbiological profile and antimicrobial susceptibility pattern of isolates from ear discharge in patients of otitis media.Methods: This study was conducted in Department of Microbiology of our institute for duration of one year. A total of 100 patients’ samples visiting ENT OPD were taken who complaining of ear discharge. Identification of organism was done by using standard biochemical reactions and antibiotic susceptibility testing done by using modified Kirby Bauer method as per CLSI guidelines.Results: Majority of the patients were between 21-30 years of age group (28%). The most common organism isolated was Pseudomonas aeruginosa (25.88%), highly sensitive to aminoglycosides and β-lactam + β-lactamase inhibitor (100%) followed by Staphylococcus aureus (21.17%), highly sensitive to aminoglycosides (100%) and fluoroquinolones (72.22%).Conclusions: Knowledge of the pathogenic agents responsible for otitis media and choice of effective antibiotics according to susceptibility pattern will guide the treatment. It also helps in reducing complications of the disease and decreasing emergence of resistance to antibiotics.

Studies on carbohydrate metabolism in Bacillus sphaericus 1593

Bacillus sphaericus 1593 was found to grow poorly on glucose when provided as sole carbon source. However, growth was significantly much higher when acetate was provided as the carbon source, ascompared to glucose. The activities of aconitase, isocitrate dehydrogenase, glucose-6-phosphate dehydrogenase and isocitrate lyase were detectable which suggests the operation of TCA cycle, hexosemonophosphate pathway and glyoxylate by pass. Only one form of isocitrate dehydrogenase and two forms of glucose-6-phosphate dehydrogenase were observed by activity staining. Further studies weresubstantiated by low respiration rate observed, when variety of intermediates of biochemical pathways were checked. Some metabolites, like 2-oxoglutarate, pyruvate, oxaloacetate and malate showed inhibitory effect on isocitrate lyase activity

Isolation of seed-borne fungi of sorghum (Sorghum vulgare pers.)

Sorghum (Sorghum vulgare Pers.) is the fifth most important cereal crop in the world after wheat, rice, maize and barley. The grain had been used for consumption of both humans and livestock and also different genes of the plant serve many other important uses. The crop has been suffer from various type of diseases, majority of them are known to be caused by fungi, which are mostly seed born. In present study Seed-borne fungi of sorghum in Marathwada region were surveyed. A total of 24 seed samples of eight different varieties from various locations, collected were tested, using the blotter and agar plate methods. Twenty eight fungal species of eighteen genera appeared in the seeds of eight different variety of Sorghum. In untreated seeds of the entire varieties maximum incidence was of Curvularia lunata. Treated seeds showed complete absence of Cladosporium herbarum, Trichothecium roseum and Absidia ramose. Agar plate method was found to be favorable for the maximum counts of saprophytic fungi and also favorable for detection of some specific fungi. Presence of many pathogenic fungi in considerable number of seed samples indicates the need of field surveys for these and other pathogens.Â

Comparative Studies on 'Nucellar', 'Sathgudi' and 'Local' Sweet Orange (Mosambi) (Citrus sinensis Osbeck.) under Marathwada Conditions

The present investigation was conducted during Ambia bahar season in the year 2011-12. The experiment was laid out in randomized block design with three treatments and seven replications. The variety 'Nucellar' recorded maximum average height of plant, spread of tree, stem girth, number of branches per tree, was early to mature, had highest yield, fruit size, number of segments per fruit, weight of fruit, peel weight, peel thickness of fruit, TSS, and pH, while, the variety 'Sathgudi' recorded maximum juice weight, with low peel-to-juice ratio. The taste of fruits of Local mosambi was sweeter, with less acidity than the other two varieties. Maximum number of seeds per fruit was recorded in Local mosambi. Highest average pH and ascorbic acid content in fruit juice was recorded in cv. Nucellar. Therefore, on the basis of results obtained in the present investigation, it is suggested that of the three varieties studied, 'Nucellar' is the best in yield and other parameters, with 'Sathgudi' being the second best

The high-pressure behavior of CaMoO4

We report a high-pressure study of tetragonal scheelite-type CaMoO4 up to 29 GPa. In order to characterize its high-pressure behavior, we have combined Raman and optical-absorption measurements with density-functional theory calculations. We have found evidence of a pressure-induced phase transition near 15 GPa. Experiments and calculations agree in assigning the high-pressure phase to a monoclinic fergusonite-type structure. The reported results are consistent with previous powder x-ray-diffraction experiments, but are in contradiction with the conclusions obtained from earlier Raman measurements, which support the existence of more than one phase transition in the pressure range covered by our studies. The observed scheelite-fergusonite transition induces significant changes in the electronic band gap and phonon spectrum of CaMoO4. We have determined the pressure evolution of the band gap for the low- and high-pressure phases as well as the frequencies and pressure dependences of the Raman-active and infrared-active modes. In addition, based upon calculations of the phonon dispersion of the scheelite phase, carried out at a pressure higher than the transition pressure, we propose a possible mechanism for the reported phase transition. Furthermore, from the calculations we determined the pressure dependence of the unit-cell parameters and atomic positions of the different phases and their room-temperature equations of state. These results are compared with previous experiments showing a very good agreement. Finally, information on bond compressibility is reported and correlated with the macroscopic compressibility of CaMoO4. The reported results are of interest for the many technological applications of this oxide.Comment: 36 pages, 10 figures, 8 table

Seismic Isolation of Building-Equipment System Using Modified Variable Friction Pendulum System

In this study, building-equipment system with Modified Variable Friction Pendulum System (MVFPS) is investigated under different earthquake ground excitations. Earthquake response of building-equipment system isolated with MVFPS is compared with Variable Friction Pendulum System (VFPS) and Friction Pendulum System (FPS) in order to find efficiency of MVFPS. Newmark’s linear acceleration method is used for solving governing equation of motion for building-equipment system. In this investigation, different storey buildings are considered. It is observed that MVFPS is more efficient in reducing the recoverable energy than FPS, but less efficient than VFPS. From the comparative study, it is found that FPS shows robust performance in comparison to MVFPS and VFPS in reducing equipment acceleration and displacement