Q. Hi. My dentist has just suggested that I have my six bottom front teeth crowned as I have weakened tooth enamel and there appearance isn’t very good. Not suprisingly this occured after I filled in a survey saying that I was not happy with my teeth. He suggests going private as I would get better crowns but the rest of my teeth are not great and I don’t want them to stick out. I also want all my teeth to look whiter. Is there really such a difference between private and nhs crowns? My dentist says that I can only have two nhs crowns a year, is that true?,