Known as excessive vertical maxillary overgrowth, this condition occurs when the palate grows more in height than in width, resulting in a narrow palate and smaller airway space. Another consequence of this high narrow palate is the reduction in the size of the nasal cavity, leading to increased nasal resistance and obstruction. Not only can a nigh narrow palate create a smaller airway it also makes it harder for you to breathe through your nose.

A regular and healthy bite, showcasing all primary teeth, will display spaces between each baby tooth. These spaces serve as temporary spaces for the adult teeth to grow into. The absence of spaces between your child's baby teeth might indicate future issues with crowded or misaligned adult teeth. It can also indicate that the dental arches are too narrow, potentially leading to insufficient facial growth and unhealthy airway development.

This can lead to issues with pronunciation, chewing, and swallowing. Additionally, aesthetically, a "weak" chin may be observed. An underdeveloped lower jaw can also displace the tongue towards the throat, obstructing the airway.