Sonia: (Opening her mouth a little bit,
slowly) Aaah…! Sorry, doctor. I can’t open my mouth any wider than this.
Dr Sharma : That’s OK. (moving the mouth mirror and the probe in Sonia’s mouth) I can see. I see a black spot on one of your premolars. There seems to be a cavity there.
1.Which instruments did the doctor use to check Sonia’s teeth?
2. What did the doctor see?