1. RECEDING LOWER JAW AND/OR PROTRUDING UPPER INCISORS
Children with protruding incisors in the upper jaw suffer up to 50% more injuries to the anterior teeth.
2. LATERAL CROSSBITE
Where a child’s upper jaw is too narrow, the lower jaw laterally overlaps the upper jaw. As a result, the upper jaw cannot develop properly and the teeth do not have the space they need. Moreover, growth is asymmetrically directed where a crossbite exists.
3. FRONTAL OPEN BITE
This is often caused by sucking (e.g. thumb or dummy) or restricted nasal breathing. Many children with this problem also suffer from a malfunction of the tongue.
4. PROTRUDING LOWER JAW AND/OR RECEDING UPPER JAW
This misalignment results in a reversed overbite of the incisors.
5. CROWDING OF TEETH
During the secondary dentition phase, temporary crowding is not generally a problem. However, if the teeth are crowded together so closely that the permanent teeth have no chance to erupt, it is time to start treatment.
