Understanding Teeth, Braces, and Bone Remodeling

What is the primary function of the periodontal ligament (PDL) in our mouths?

• To dissolve jawbone for teeth movement

• To absorb shock and protect the jawbone

• To make teeth harder than steel

• To produce minerals for bone growth

How do braces help in aligning teeth?

• By applying a steady force that triggers bone remodeling

• By hardening the teeth to resist pressure

• By dissolving the teeth enamel

• By cushioning the jawbone from chewing forces

What role do osteoclasts play in the process of wearing braces?

• They deposit minerals to form new bone

• They dissolve parts of the jawbone

• They cushion the jawbone from pressure

• They signal the brain to stop biting

What percentage of bone material is typically new each year?

• 5%

• 10%

• 15%

• 20%

What innovation has Paula Hammond's group at MIT developed for bone regeneration?

• A material that rapidly releases proteins

• A material that slowly releases proteins to aid bone growth

• A brace that aligns bones without pain

• A drug that stops osteoclast activity