Root-form implants are called endosseous or endosteal implants, meaning they are placed in the bone. They look like screws, thick nails or cones, and come in various widths and lengths. For root-form implants to be successful, the bone needs to be deep enough and wide enough to provide a secure foundation.
Root-form implants can be inserted in two stages or one stage. The two-stage process is the traditional way. In this procedure, the implant is "buried" under the gum tissue for three to four months. Then it is exposed during a second surgical procedure. In a single-stage procedure, the implant is placed in the bone and remains exposed in the mouth.