Is tooth extraction always necessary for orthodontic braces?

Braces don't necessarily require tooth extraction. The main reason for extracting teeth during orthodontic treatment is to address issues of dental crowding and misalignment. Modern humans often have a smaller jawbone capacity relative to tooth size, leaving insufficient space for all teeth to erupt properly. By removing certain teeth, the total number of teeth is reduced, effectively decreasing the overall dental volume and achieving a better match between jawbone size and tooth size. This provides orthodontists with sufficient space to align the teeth properly.