Larger-than-normal spaces occurring in a child’s mouth are quite normal in the primary dentition. In fact, if spaces are non-existent, then that is already a certain indication that the child will develop crowding in the permanent dentition.
Spaces in the adult dentition can mean two things:
- The teeth are smaller than average in width to fit within the available arch space. Small, or “peg” teeth usually occur in the lateral incisors. (pictures showing incisor bondings)
- There is a tongue/space discrepancy where the functionally desired space for the tongue to fit within the palate and the arches is larger, therefore they get pushed out into a larger arch. (See the show case Missing Lateral Incisor.)