Yes, teeth roots do move over time.
Even though teeth feel firmly in place, they aren't completely stationary. An orthodontist can use this natural mobility to gradually shift teeth during orthodontic treatment, like braces.
Why do teeth roots move?
The movement of teeth roots is possible because of the surrounding structures:
- Periodontal Ligament: This is a network of fibers connecting the tooth root to the jawbone. It allows for slight movements.
- Bone Remodeling: Bone cells called osteoblasts build new bone, while osteoclasts break down old bone. This process, influenced by pressure, allows teeth to shift.
How Orthodontics Utilizes Tooth Root Movement
Orthodontic treatments take advantage of bone remodeling to reposition teeth.
- Braces or aligners apply gentle, constant pressure.
- This pressure stimulates bone remodeling.
- Bone is resorbed (broken down) on the side of the tooth where pressure is applied.
- New bone is formed on the opposite side to support the tooth in its new position.
- Over time, this controlled process gradually moves the entire tooth, including the root.
Examples of Tooth Root Movement
- Closing gaps: Shifting teeth to close spaces between them.
- Straightening crooked teeth: Repositioning teeth for a more aligned bite.
- Correcting bite issues: Moving teeth to improve how the upper and lower teeth meet.
