My 3 yr old first visit to the dentist. He has some plaque build up on his teeth. Although the dentist was good with my son. He did not clean his teeth very well. My son was a little fussy, but he was not trying to stop the cleaning or interfear with it. The teeth in the front were cleaned, but the teeth in the back were not. There is still build up on his teeth in the back. I called to see if they would re-clean his teeth and they said no.