Occlusion:
closure; relationship of the upper and lower
teeth upon closure
Onlay:
laboratory produced restoration covering one
or more cusps of a tooth
Oral and maxillofacial surgeon:
a dental specialist
who manages the diagnosis & surgical treatment of diseases, injuries, and deformities of the mouth and supporting structures;
Requires four additional years of training after dental school
Oral cavity:
the
mouth
Oral hygiene:
process of maintaining cleanliness of the teeth
and related structures
Oral and maxillofacial surgery:
surgical procedures
on the mouth including extractions, removal of cysts or tumors, and repair of fractured jaws
Oral pathologist:
dentist specializing in the study of oral diseases
Orthodontics:
dental specialty that treats misalignment of teeth
Osseous:
boney
Overbite:
vertical overlap of the front teeth
Overdenture:
denture that fits over residual roots or dental implants
Overjet:
horozontal overlap of the front teeth