[Efficiency of long-term dental treatment].

250 patients in long-term treatment (about 12, 4 years) were examined concerning their oral symptoms (DMF/T, CPITN, GPM, Plaque-index, Sulcus-bleeding-index of Mühlemann and Son), number of teeth, number of extracted teeth and teeth with endodontic treatment during the treatment period. These patients were compared with 250 patients, who were not under regularly treatment. There are clear differences between both groups. It can be concluded that long-term treatment with exact fillung therapy, endodontic and periodontic treatment is able to maintain teeth until a high age of life.