Abstract
The developments in regard to dental implants have recently been remarkable, and the survival rate has also become markedly higher. For cases with minor teeth missing, a dental implant is applied instead of the fixed partial denture. But a dental implant can now also be applied even in cases with major teeth missing, fabricated by removal of the partial denture. Therefore any case of missing teeth can be successfully treated by application of the crown and a fixed partial denture.
Dental caries and periodontitis are chronic diseases. Generally, the treatment plan and prognosis are intensely affected by individuation of the patient's oral health status. In the same way, it is hard to select a uniform and permanent treatment plan for patients; therefore the removal of a partial denture might be made considering a further image. In other words, the treatment plan might be added in correspondence to the body changing with age.
Three cases, whose status in the dento-occlusal triangula relationship is the third area, are shown in this section. I would then like to inspect whether these cases are really difficult, considering individuation of the patients. Also, I would like to investigate the possibility and the limits of the application of the removal partial denture.