Listening Quiz: Đo Túi Nha Chu Và Chiều Sâu Túi Nướu – Medium Level

1. What is the conversation mainly about?
2. According to David, what is a normal pocket depth?
3. What can a pocket deeper than 4 millimeters mean?
4. Why does David mention that the probe might feel a little uncomfortable?
5. What can be inferred about Mia from the conversation?

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