• malocclusion – improper alignment of upper and lower jaw or teeth
  • mandible – lower jaw
  • mandibular canal – space within the mandible that holds the blood vessels and nerves for the lower jaw and teeth
  • mastication – chewing, generally of food
  • maxilla – upper jaw
  • maxillary sinus – open cavity inside the maxilla
  • molar – rearmost teeth, cusped, used for grinding food
  • mouthguard – appliance used to protect the mouth and teeth during rigorous activity, such as sports