Preventive examination of a 5-year-old child reveals the infantile swallowing. The bad habit of thrusting the tongue between the teeth may cause the following complication:

Answer options

1. Narrowing of the upper dental arch
2. Broadenning of the upper dental arch
3. Incomplete eruption of the front teeth
4. Broadening of the lower dental arch
5. Narrowing of the lower dental arch