We put a dental bib on the patient to avoid spilling onto the clothes. This is also a way for patients to wipe their mouths after treatment. Many things are covered with gauze. 1) stop the bleeding at the extraction site; 2) clean the face or lips of the patient; 3) remove debris from the instrument while providing treatment to the dentist; 4) disinfection of unmoving objects, such as the dental chair; And so on... The list goes on. I kept grabbing a piece of gauze.