Gaps in your smile can reduce your confidence, social opportunities, and can have negative effects on other’s perception of you. Apart from that a missing tooth can cause tooth shifting, underlying bone and gum loss and structural collapse of your face. This is obvious when our face is full of wrinkles, a sagged appearance and premature aging. Dentists usually recommend All-on-4 Dental implants for patients who have no teeth left or a few teeth that cannot be salvageable. But there are other three instances where All-on-4 Dental implant may not be required. Let us see these three scenarios.