WHEN IS A TOOTH VITAL âVITALITYâ IS A TERM WE DENTISTS USE TO DESCRIBE THE LIVING / DYING STATUS OF THE TOOTH. DO NOT REFER TO A TOOTH AS âNON VITALâ TO A PATIENT. IT MEANS SOMETHING ENTIRELY DIFERENT. THEY MAY NOT ACTUALLY SAY IT BUT ONE PATIENT ONCE TOLD ME STRAIGHT â âITâS VITAL TO ME!