I went to Dr. Holubec for teeth cleaning. He told me I had 6 cavities (I NEVER had any cavities prior to visiting him). He put a camera in my mouth and proceeded to show me my cavities. I had the composite fillings done by him for all 6 cavities. Recently I visited another doctor who told me I had sealant on my teeth and no fillings!!! This was confirmed by another dentist as well. I paid a lot for my supposed fillings from Holubec but he turned out to be a lying cheat.
After I found this out, I spoke with several of his other patients and he performed unnecessary procedures on them as well. The magic number is 6 - several people were told they had 6 cavities. I would recommend others to avoid him.