Dr. Choi was very thorough. He really examined my teeth, spent lots of time and educated me about everything he was talking about. He wasn't in a rush to see the next patient and was very willing to sit and talk to me. He did recomend that I get a filling that I'm not sure was necessary. I got a second opinion and that dentist said it was a stain. This made me hesitant to return. I guess everyone has a different opinion, but I prefer no drilling if possible.