Adult (permanent) teeth identified by numbers
From the midline to the back of the mouth on each side, there is a central incisor, a lateral incisor, a canine, two premolars (bicuspids), and three molars
Children (non-permanent) teeth identified by letters
Common landmarks:
1: Right upper wisdom
8 & 9: Upper incisors
16: Left upper wisdom
17: Left lower wisdom
24 & 25: Lower incisors
32: Right lower wisdom<unk>  emergency; for every minute that a permanent tooth remains out of the socket, the chance of successful reimplantation goes down by 1% 
Tooth is completely removed from its socket
Often associated with alveolar ridge fracture
From the midline to the back of the mouth on each side, there is a central incisor, a lateral incisor, a canine, two premolars (bicuspids), and three molars
1: Right upper wisdom
8 & 9: Upper incisors
16: Left upper wisdom
17: Left lower wisdom
24 & 25: Lower incisors
32: Right lower wisdom
Dental avulsion
Dental fracture
Stingray injury
Dental subluxation
Penetrating neck trauma
Bleeding dental socket
Lisfranc injury
Acute alveolar osteitis 