BACKGROUND This study compared the effectiveness of a Specially Designed Paste Carrier technique with the Syringe-Spreader technique and the Syringe-Lentulo spiral technique in the intracanal placement of calcium hydroxide. METHODS Three groups, each containing 15 single-rooted human anterior teeth were prepared using standardized Mtwo rotary instruments to a master apical file size 40 with 0...

Five techniques for delivering ZOE into straight and curved simulated root canals were investigated for their depthof-fill capabilities. The techniques tested were those using the endodontic pressure syringe, the mechanical syringe, the lentuIo spiral, the JiffyTM Tube, and the tuberculin syringe. Statistical analysis revealed that the instruments of choice for filling straight canals were the ...

This work shows the improvements in the sensing capabilities and precision of an Optical Microbubble Resonator due to the introduction of an encaging poly(methyl methacrylate) (PMMA) box. A frequency fluctuation parameter σ was defined as a score of resonance stability and was evaluated in the presence and absence of the encaging system and in the case of air- or water-filling of the cavity. Fu...

Introduction: Pulpectomy helps in preserving a pulpally involved primary tooth by extirpating the diseased pulp associated with microorganism and debris from canal obturating an antibacterial resorbable filling material Aim: To evaluate compare obturation quality interms of underfilling,optimal filling, over fillings, voids single rooted teeth amongst 4 different techniques using cone beam comp...

BACKGROUND In nuclear medicine, liquid radiopharmaceuticals for diagnostic or therapeutic purposes are administered to patients by using various types of syringes with different volumes. The activity of each "dose" must be carefully measured and documented prior to administration using an activity calibrator. METHODS Calibrator response is a function of the measurement geometry and, in partic...

OBJECTIVE To analyze the methods used in our hospital for obtaining pleural fluid to determine the acid-base balance and to evaluate the clinical repercussions of each method. METHODS Initially we studied the methods used by physicians in our hospital to collect pleural fluid for determination of the acid-base balance. In a second phase, we performed a prospective, descriptive, comparative st...

OBJECTIVE The purpose of this study was to determine the adsorption behavior of some widely used, commercially available 99mTc radiopharmaceuticals onto different types of plastic syringes. METHODS Kits were reconstituted with 99mTc-pertechnetate diluted with 0.9% saline to produce maximum radioactive concentrations, as stated by the manufacturers. Aliquots of the solutions were transferred t...

0

BACKGROUND In most patients, cancer pain is effectively treated with conservative medical management consisting of oral and/or transdermal analgesics. Cancer patients tend to fail conservative medical management near the end of their life expectancy, thus requiring alternative routes of analgesia such as intravenous, epidural, or intrathecal. The intrathecal route provides the most effective an...