All-On-4 dental implants can replace all missing teeth of the upper or lower jaw. All-On-4 dental implants only use 4 anchorage screws to secure your dental implants, making the procedure less invasive than receiving individual dental implants for each missing tooth. All-On-4 dental implants can be used for patients with no teeth; they can also be used for patients who have experienced dental trauma or who are missing the majority of their teeth.