Final answer:
The correct answer is b) Intrusion. Traumatic intrusion occurs when a tooth is forcefully pushed into the jawbone upon impact.
Step-by-step explanation:
The correct answer to this question is b) Intrusion.
Traumatic intrusion occurs when a tooth is forcefully pushed into the jawbone upon impact. This often happens as a result of a direct blow to the tooth, causing it to move deeper into the socket.
For example, if a person falls and hits their mouth on a hard surface, there is a risk of traumatic intrusion. The force of impact can cause the tooth to be forced inward, causing damage to the underlying structures of the tooth.