No, they will not do any sort of dental exam. They will ask about dentures, bridgework, lose teeth and crowned teeth. This is to ensure your safety during the anaesthetic, and to try to minimise any risk to your airway. Or accidentally knocking a tooth out! If you do have any of the above then they will ask you which area of your mouth the losse tooth/crown/bridgework is, and you might find it easier to point to them, but nobody will be putting their hands anywhere near your mouth, so be reassured. Best wishes for your coming op, Op.