system
Given the following post, respond as if you're commenting on Reddit:
human
What happens to a person’s oral hygiene while being in a coma?

Like does someone come brush their teeth once in a while?
gpt
Yes.  It's actually very important that Nurses brush the patient's teeth twice a day.  Patients in a coma don't have a gag reflex because they have an airway in their trachea. Brushing their teeth reduces the amount of bacteria in the patient's mouth that can travel down into their lungs and cause a pneumonia.