Surgical and community face masks are used worldwide to reduce the transmission of respiratory infections in indoor environments. Performance parameters for these loose-fitting devices mainly focused on material filtering efficiency, while, differently from respirators, there no standards methods measuring fraction air leaking at seal. This study quantifies total filtration efficiency (TFE), a ...

BACKGROUND This study aimed to examine end-of-treatment outcomes of severe Class II Division I malocclusion patients treated with surgical or non-surgical approaches. This study tests the hypotheses that occlusal outcomes (ABO-OGS) and cephalometric outcomes differ between these groups. METHODS A total of 60 patients were included: 20 of which underwent surgical correction and 40 of which did...

“MASK-NE”-Mask associated Acne, is a common form of acne during COVID-19 pandemic. It type mechanica seen when external factor occludes the skin, leads to irritation, inflammation and starts/aggravates all grades acne. We conducted cross-sectional study among 773 participants, using Self-administered, aim oriented, questionnaire which includes demographic data, related history, duration wearing...

results in the i-gel group, the success rate was 66.7% for placement on the first attempt, 16.7% for the second, and 3.33% for the third attempt. in the lma group, the success rates were 80.6% and 12.9% for the first and second attempts, respectively. failure in placement occurred in four cases in the i-gel and two cases in lma groups. the mean insertion time was not significantly different bet...

results sore throat was recorded in 32.9% of patients with lma and 44.2% of intubated patients, but it was not statistically significant (fisher’s exact test = 0.158). hoarseness was recorded in 3.5% of patients with lma and 24.4% of intubated patients (fisher’s exact test = 0.000). in 1.2% of patients with lma cough was recorded; it was also seen in 7% of the intubated patients (fisher’s exact...

post-operative sore throat is one of the most common complications and complaints of patients after general anesthesia especially in operations that need endotracheal intubations. its causes are: size of endotracheal tube and type of its cuff, inadequate airway humidification, trauma during intubation and suctioning, high flow of inspiratory gases, surgical manipulation of airway and adjacent o...