Streptococcus pyogenes, commonly known as strep throat, is a bacterial infection of the throat and tonsils. It is spread through contact with respiratory droplets from an infected person. While it is not common, it is possible to contract strep throat from dental procedures.
There are a few ways that this can happen. One is if the dentist or hygienist is carrying the bacteria and it is transferred to the patient's mouth during the procedure. Another way is if the patient has a small cut or abrasion in their mouth that allows the bacteria to enter. Finally, the bacteria can be present on dental instruments that have not been properly sterilized.
