I have a friend who had to have several teeth removed because of a cyst. This was many years ago. She was understandably terribly upset as she'd always looked after her teeth and they were lovely and white and even. However, the surgery took place, she had a very unobtrusive metal plate fitted with false teeth to fill the gap and she has never looked back. She always said it was a classic case of anticipation being so much worse than realisation.
Please try not to worry - as others have said, I'm sure there would not be this delay if they thought there was anything sinister going on.