Dental implants are titanium screws that replace missing teeth by being anchored below the gum and into the jawbone. They can hold fixed crowns, bridges, or dentures. The implant process involves placing the screw, then attaching an abutment above the gum before securing a restoration. Additional bone grafting may be needed if the jawbone lacks sufficient width or height. After 2-6 months of healing time for the implant to fuse to the bone, the restoration can be placed.