Comparative Evaluation of the Effectiveness of Rotary and Reciprocating Single File Systems on Postoperative Pain After Biomechanical Preparation in Patients With Chronic Apical Periodontitis: A Randomized Clinical Trial.

Background and objective Postoperative pain after biomechanical preparation of root canals can be equally distressing to the patient as well as the dentist and can mold the patient's attitude and trust for future dental procedures. This randomized clinical trial aimed to evaluate the effectiveness of rotary and reciprocating single-file systems on postoperative pain after biomechanical preparation in patients with chronic apical periodontitis. Materials and methods In this randomized clinical trial (CTRI Reg No-CTRI/2021/04/032841), 94 patients with chronic apical periodontitis in single straight-rooted teeth were divided equally into two groups, according to a standardized protocol.

Comparative evaluation of the effectiveness of intracanal and intraoral cryotherapy on postendodontic pain in patients with symptomatic apical periodontitis: A randomized clinical trial.

Introduction: There is a rising need for controlling postendodontic pain (PEP) without using analgesics and other conventional methods.

Aims: The aim of the study is to compare the effectiveness of various cryotherapy applications on controlling PEP in patients with symptomatic apical periodontitis.

Methods: One hundred and eight patients were selected and preoperative pain and pain on percussion scores were recorded using Numeric Rating Scale (NRS) and Visual Analog Scale (VAS), respectively.

Effect of Iontophoresis on the Effectiveness of Nano-Hydroxyapatite and Pro-argin in In-Office Treatment of Dentin Hypersensitivity: A Split-Mouth Randomized Clinical Trial.

Background and objectives Dentin hypersensitivity (DH) treatment is one of the main challenges dentists face in their daily clinical practice. Current therapies provide only temporary relief and require multiple applications to exhibit results, and there is a lack of evidence related to the long-term effects of these agents. Nano-hydroxyapatite (n-HA) and pro-argin (8.

Recent progress on the low and high temperature performance of nanoscale engineered Li-ion battery cathode materials.

Lithium ion batteries (LIB) are the domain power house that gratifies the growing energy needs of the modern society. Statistical records highlight the future demand of LIB for transportation and other high energy applications. Cathodes play a significant role in enhancement of electrochemical performance of a battery, especially in terms of energy density.

Nanoscale-engineered LiCoOas a high energy cathode for wide temperature lithium-ion battery applications-role of coating chemistry and thickness.

Extending the charge cutoff voltage of LiCoO(LCO) beyond 4.2 V is considered as a key parameter to obtain higher energy densities. Following gaps have been identified based on a thorough literature survey especially for higher cutoff voltage of nanoscale engineered LCO cathodes, (i) different metal oxides and metal fluoride surface coatings have been mostly done independently by different groups, (ii) room temperature performance was the focus with limited investigations at high temperature, (iii) nonexistence of low temperature cycling studies and (iv) no reports on high rate capability of LCO beyond 4.

Polarization properties of retinal blood vessel walls measured with polarization sensitive optical coherence tomography.

A new method based on polarization-sensitive optical coherence tomography (PS-OCT) is introduced to determine the polarization properties of human retinal vessel walls, . Measurements were obtained near the optic nerve head of three healthy human subjects. The double pass phase retardation per unit depth (DPPR/UD), which is proportional to the birefringence, is higher in artery walls, presumably because of the presence of muscle tissue.

Theoretical Study on Tuning Band Gap and Electronic Properties of Atomically Thin Nanostructured MoS/Metal Cluster Heterostructures.

Nano-heterostructures have attracted immense attention recently due to their remarkable interfacial properties determined by the heterointerface of different nanostructures. Here, using first-principles density functional theory (DFT) calculations, we examine what range the variable electronic properties such as the electronic band gap can be tuned by combining two dissimilar nanostructures consisting of atomically thin nanostructured MoS clusters with small silver and gold nanoparticles (Ag/Au NPs). Most interestingly, our calculations show that the electronic band gap of the nanostructured MoS cluster can be tuned from 2.

Identification of immune cells interacting with Vibrio spp. and its in vitro post-phagocytic killing mechanism of haemocytes in the penaeid shrimp, Penaeus indicus H. Milne Edwards.

Immune cells were identified and their interaction towards Vibrio alginolyticus, V. parahaemolyticus and V. anguillarum was studied in vitro in the penaeid shrimp, Penaeus indicus.

Electroencephalographic and imaging profile in a subacute sclerosing panencephalitis (SSPE) cohort: a correlative study.

Objective: There are only a few studies correlating diverse radiological and EEG features of subacute sclerosing panencephalitis (SSPE). The objective of the study was to (a) describe EEG profile and (b) correlate it with the clinical and imaging data of patients with confirmed SSPE.

Methods: This study was conducted at a University teaching hospital in south India and involved 58 patients (M:F=37:21, age: 12.

Adenoid hypertrophy presenting with systemic hypertension.

A two and half year old male child was seen with systemic hypertension, left ventricular dysfunction, mitral regurgitation and congestive cardiac failure. Examination revealed adenoid hypertrophy. He was also suffering from obstructive sleep apnea.

Purification and characterization of a natural agglutinin in the hemolymph of the prawn Penaeus indicus H. Milne Edwards.

A natural agglutinin in the hemolymph of the marine prawn Penaeus indicus was isolated by gel filtration chromatography, purified using polyacrylamide gel electrophoresis, and characterized. Prawn agglutinin has a native molecular mass of 181 kDa and consists of two monomeric units (97 and 84 kDa), maintains some agglutinating activity over a wide pH range (7-9), and is inactivated at 85 degrees C. The agglutinin was denatured upon mixing with trichloroacetic acid, phenol, chloroform, and 45% ammonium sulfate.

Novel palladium(II) complex containing a chelating anionic N-O ligand: efficient carbonylation catalyst.

[reaction: see text] A novel palladium(II) complex containing chelating anionic pyridine-2-carboxylato and labile tosylato ligands is a highly efficient catalyst for the carbonylation of organic alcohols and olefins to carboxylic acids/esters. Carbonylation of primary, secondary, and tertiary alcohols as well as linear and functionalized terminal olefins was studied. In all cases remarkable activity and selectivity were observed.

Surface treatment of enamel with laser--a potential alternative for acid etching--an in vitro study.

An in-vitro study was carried out on 80 human premolars to study the use of Nd:YAG laser as a potential alternative for acid etching in the surface treatment of enamel prior to sealant application. The determination of bond strength using Universal Testing Machine, Model 1011 and marginal leakage using the spectrophotometric dye recovery method showed no statistically significant difference between the groups with laser and acid surface treatments. But, there was a significantly lower bond strength and increased dye penetration in the group with no surface treatment.