A titanium anchor or screw is placed into the jawbone to simulate a natural tooth root. After placing the implant a healing period of 4-6 months is required to allow the natural bone to heal and secure the implant. The second step is to place an attachment or an abutment into the implant to allow a post for the crown to sit on. After this procedure you have the closest thing to a natural tooth as possible. Implants are used to replace one or more missing teeth and can be used in conjunction with upper and lower dentures.