Study of Lateral Wall Thickness of the Maxillary Sinus in Left and Right Sides for Female and Male: A Cross Sectional Retrospective Study Using Cone Beam Computed Tomography.

Background: Dental implants are considered the first option to replace missing teeth. Alveolar bone resorption gradually progresses following tooth extraction leading to loss of vertical bone dimension for implant placement. The lateral window approach is the most commonly used procedure to treat vertical bone loss.

Knowledge and Attitude Regarding COVID-19 among Students from Multiple Professional Background in Riyadh Region, Saudi Arabia: A Cross-sectional Study.

Introduction: Coronavirus disease 2019 is abbreviated as "COVID-19" caused by the severe acute respiratory syndrome-corona virus 2 first emerged in Wuhan, China, on December 2019. On 15 of March, this disease has been classified by the World Health Organization as a pandemic and a global public health emergency.

Objective: The study's aim was to evaluate the knowledge and behavior toward the virus among professional students of Riyadh, Saudi Arabia.