Even if your dental crown can’t develop a cavity, the tooth that your crown is attached to still can. There is a small area right where your tooth and dental crown meet, and plaque can find its way there to start forming a cavity. If left alone, it could mean that you eventually need to get your crown replaced. That’s a major reason why you have to maintain great care of your crown, if not a little extra attention to where it is.
With a dental implant, there may not be a natural tooth that it’s attached to like with a crown, but don’t forget that it’s still next to natural teeth. If you don’t brush around your implant, decay could end up forming in those in-between spaces and affecting those surrounding teeth.