Dental implants are used to replace one or more missing teeth. An implantmaybe a preferred option over a bridge. It usually involves one tooth at a time. A surgeon opens up your gums, cuts away some bone, and places an implant screw in your jaw. A  crown is then put on that screw. However a waiting period of approximately 4 to 6 months is needed tobefore you get your crown fitted onto the implant. This waiting period is needed to give your bone time to heal and the implant, time to adhere to the bone.