- Presence of overbite (upper teeth cover lower teeth when jaw is closed).
- Presence of underbite (the reverse).
- Presence of open bite (teeth do not touch when jaw is closed).
- Presence of cross bite (teeth do not meet evenly when jaw is closed).
- Uneven gaps between teeth or tooth crowding/overlapping.
- Teeth that protrude forward or back.
- Baby teeth that do not fall out on schedule.
- Ongoing issue with thumb (or finger) sucking past age 2 or 3.
- Bite does not line up evenly down the center of the mouth.
- Obvious tooth wear and tear.
- Pain, grinding or difficulty chewing food.
- Jaw joint shifts, locks or slides out of socket.