Questioning dentist's decision to drill

[MarcieD]

I just went to a new dentist in a new area we moved to. Xray shows a dark area in one of my teeth. Dentist checked tooth for sensitivity and said he doesn't think it's a cavity, but he wants to drill into tooth to find out why there is a dark area that looks like a cavity? Does this make sense? I have a hard time believing a dentist should drill into a tooth that he doesn't think has a cavity in it? And because it's a new dentist and I am a very nervous patient I'm not sure I feel confident in his decision.

 

[Gordon]

You can make a very small test cavity to confirm if there's decay present. He presumably thinks that there is but wants to make absolutely certain. A small test cavity won't do any harm to the tooth if it turns out not to be decay.