Urban noise measurements in the City of Buenos Aires during the mandatory quarantine.

During preventive and mandatory social isolation decreed by the Argentine National Government to contain the spread of COVID-19, the city of Buenos Aires has experienced a marked decrease in vehicular traffic. To study this new scenario, the Acoustic Impact Department of the Environmental Protection Agency carried out a series of uninterrupted urban noise measurements for one week in five measurement points. The results were compared with those obtained before quarantine and with the maximum permissible limits according to current legislation.

Determining the requirements, section quantity, and dimension of the virtual occlusal record.

Statement Of Problem: Conventional methods associated with many processes in dentistry are being replaced by methods that use digital technology. One of these processes is the making of occlusal records for the positioning of casts in a virtual articulator. Conventional interocclusal records and the articulator are currently being replaced by the intraoral virtual occlusal record and the virtual articulator.