Tongue ties can lead to a wide range of dental issues. The tie may pull on the jaw bone, resulting in teeth shifting out of position, or it may prevent the teeth from closing together, causing a large gap between the front teeth.
Furthermore, the tongue is nature's palate expander. In utero, the tongue begins to press against the palate to help create a rounded, wide arch. A tongue that cannot lift upwards and press against the palate results in a high, narrow palate. An elevated palate may negatively impact nasal breathing, and may also cause orthodontic problems such as malocclusion and crowding.
Removing restrictions of the tongue and lips can allow the teeth to erupt in a more ideal alignment, which may help reduce the need for future orthodontic treatment.