![]() When considering reconstructive preprosthetic surgery of the edentulous jaw, it is important that the clinician fully understands the anatomical consequences of reduction of the residual ridges. This process occurs to a greater extent in the mandible compared with the maxilla and leads to a quantitative and qualitative reduction of the alveolar bone.Ĭawood and Howell (1988) analyzed patterns of alveolar resorption and described a pathophysiological classification of alveolar resorption, which is accepted internationally ( Figs. ![]() ![]() There is a progressive reduction in the residual alveolar ridges, following the loss of teeth, due to alveolar bone resorption, which occurs relatively rapidly in the first year after tooth loss and then continues at a slower rate for many years (Tallgren, 1972). Of the many variables that govern the use of such implants the availability of sufficient bulk of bone is the most important. Nowadays the application of endosteal implants has extended the scope and effectiveness of reconstructive preprosthetic surgery (Cawood and Stoelinga, 1996). Reconstructive preprosthetic surgery can be defined as the restoration of oral function and facial form, rendered deficient through loss or absence of teeth and related structures, by a combination of surgical and prosthetic means. ![]() 29 Reconstructive Preprosthetic Surgery and Implantology ![]()
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