O

A | B | C | D | E | F | G | H | I | J | L | M | N | O | P | R | S | T | U | V | W |

• occlusion
  

  occlusion closure relationship of the upper and lower teeth upon closure

• onlay
  

  onlay laboratory produced restoration covering one or more cusps of a tooth

• oral and maxillofacial surgery
  

  oral and maxillofacial surgery surgical procedures on the mouth including extractions, removal of cysts or tumors, and repair of fractured jaws

• oral cavity
  

  oral cavity the mouth

• oral hygiene
  

  oral pathologist process of maintaining cleanliness of the teeth and related structures

• osseous
  

  osseous boney

• overbite
  

  overbite vertical overlap of the front teeth

• overdenture
  

  overdenture denture that fits over residual roots or dental implants

• overjet
  

  overjet horozontal overlap of the front teeth