Q. I have just visited my dentist as i have had 3 seperate occassions, in the same tooth of an infection in the root of my front tooth, which has cosmetic veneers, and have been told i need root canal, and that my veneer will need to be removed approx 3 mths after the treatment, and i will need a crown in its place. I dont understand why a crown needs to be put there? and why the veneer cannot stay. Can you help please.,