underbites

Jutting lower jaws

Underbites is the plural of underbite, a dental condition where the lower jaw protrudes beyond the upper, causing the bottom teeth to sit in front of the top teeth when the mouth is closed.

The term applies to both humans and animals: Bulldogs are known for their underbites.

Underbites range from barely noticeable to severe enough to affect speech or chewing.

anatomy

mandible

Lower facial bone

  • jawBone holding teeth
  • maxillaUpper jaw bone
  • chinLowest facial protrusion

jawline · profile · skeletal · facial · bone · dentition · occlusion · mastication · proportion · symmetry

treatment

braces

Dental alignment devices

appliance · adjustment · surgical correction · facemask · elastic bands

malocclusion

crossbite

Lateral jaw misalignment

  • overjetForward upper tooth projection
  • crowdingExcessive gathering in limited space
  • misalignmentImproper positioning relative to reference

asymmetry · protrusion · irregularity · deviation · discrepancy · imbalance

Opposites
jaw alignment

underbitesoverbites

Upper jaw overlaps lower

overjet · retrognathia · buck teeth

Family

underbite

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G