Have you lost a full arch of teeth? All-on-4 (or All-on-6) is a method of placing dental implants which allows your dentist to secure a complete denture on four to six dental implants. Used in cases of total tooth loss, this approach promises a stable, natural-looking smile faster and more affordably compared to what is possible with traditional dental implants. For many patients, that is wonderful news — but All-on-4 implants can also be associated with some risks. Keep reading to find out what they are and how they can be avoided.