Understanding Tooth Movement During Orthodontic Treatment

Teeth move through bone via a process called bone remodeling, where old bone is resorbed and new bone is formed, allowing gradual repositioning.

Step-by-Step Process

1. Application of orthodontic force: Braces or aligners apply controlled pressure to the tooth and surrounding bone.
2. Activation of osteoclasts: Pressure stimulates osteoclasts, cells that break down bone tissue.
3. Bone resorption: Osteoclasts dissolve bone on the pressure side, creating space for movement.
4. Formation of new bone: Simultaneously, osteoblasts build new bone on the tension side, filling the gap.
5. Gradual tooth movement: As resorption and formation continue, the tooth shifts in the desired direction.
6. Continued remodeling: The process repeats throughout treatment, enabling precise positioning.

Treatment duration varies based on malalignment severity, appliance type, and individual response.