If buck teeth protrude from the upper row of teeth, it means that the mandible is underdeveloped (showing the small chin) and it is necessary to wear braces from top to bottom;

If the upper teeth are prominent, the mandible develops normally and the teeth are neat, only the upper teeth can be corrected.

However, after single jaw correction, the correction effect of occlusal relationship and midline is poor and can not reach the normal standard.

Judging from your teeth, there is a great possibility that it needs to be corrected up and down.