The roots of your natural teeth are embedded into the bone in your mouth, and it is this stimulation that keeps the bone from resorbing. Bone resorption occurs when natural teeth fall out and the bone no longer houses the roots. Certain types of cosmetic dentistry procedures can catalyze this effect, and it can ultimately change the shape of your face. Bone resorption happens relatively quickly, so it’s best to deal with it as soon as possible. Talk to your dentist and find out if you are still a candidate for dental implant treatment.