The aim of the investigation was to assess two methods of the treatment of III type perio-endo syndrome by Simon, Glick and Frank. In group I only
periodontic treatment was performed including
scaling, root planing and
curettage. In group II
periodontic treatment was supplemented by endodontic
therapy. The results were registered by: Plaque Index, Sulcus
Bleeding Index, Sulcus Fluid Rate, Bone Lost Index EMR, pocket depth and
tooth mobility; before treatment, 7 days
after treatment, 6 weeks and 6 months
after treatment. In group II in selected cases (teeth with vital pulp and pocket depth more than 6 mm), microbiological examination of the dental pulp and
dental plaque from the pocket was carried out. The results showed that the periodontal
therapy was not effective. In first group, after 6 months the teeths mobility was extend, the pocket depth was reduced by 1 mm only, in gingiva there was registered still with chronic
inflammation and the bone growth was not significant. In the second group the teeth mobility was less significant, the pocket depth was reduced more than 3.5 mm, in 21% persons the gingiva was in good health condition and the bone growth was significant (7.5%). The anaerobic bacteria were incubated in 9 probes of dental pulp for 10 examinations.