introduction : achieving successful anesthesia and performing pain-free root canal treatment are important aims in dentistry. this is not always achievable and therefore, practitioners are constantly seeking newer techniques, equipments, and anesthetic solutions for this very purpose. the aim of this review is to introduce strategies to achieve profound anesthesia particularly in difficult case...

The main objective of root canal treatment is thorough mechanical and chemical cleansing of the entire pulp space and to provide an intact hermatic seal. A 30 year-old female patient was referred to the Department of Conservative Dentistry and Endodontic with a chief complaint of acute pain in her right lower back tooth. From the clinical and radiographic findings, a diagnosis of symptomatic ir...

Although wood densification by compression improves wood mechanical strength, dimensional stability is often a problem due to compression recovery. Alternatively, oil-heat treatment (OHT) improves wood dimensional stability and enhances resistance to biological attack. This study examined combined wood densification and OHT. Large wood veneer 700 × 700 mm specimens prepared with aspen (Populus ...

The coronavirus outbreak is a global public health emergency with high transmission among the population. Over 18 million people were affected globally (06th August 2020). In most of cases, patients present flu-like symptoms, such as fever, cough, headaches and myalgias are commonly reported. Lockdown measures have been implemented to control spread virus. contrast, these reported increase prob...

in this paper, a new combined power and refrigeration cycle is proposed, which combines the rankin power cycle and the ejector refrigeration cycle. this combined cycle produces both power output and refrigeration output simultaneously. this cycle is driven by the flue gas of gas turbines, industrial waste heats, solar energy and geothermal energy. an exergy analysis is performed to guide the th...

Assessment of neurological and psychiatric disorders like depression are unusual from a speech processing perspective, in that speakers can be prompted or instructed in what they should say (e.g. as part of a clinical assessment). Despite prior speech-based depression studies that have used a variety of speech elicitation methods, there has been little evaluation of the best elicitation mode. O...