Anyone who is missing one or more (even all) of their teeth may be a candidate for implants. If one or a few of the teeth are missing, implants in conjunction with a crown or bridge can replace those teeth and function as normal teeth without losing more bone and being subject to decay. If all or most of your teeth are missing, then implants may be placed to anchor a loose denture. Sometimes, if there is already some bone loss, bone can be added and regenerated or a technique called bone expansion can be used to create a more ideal site for the implant(s).