Methods: Therefore, the aim of our study was to document the treatment of 27 teeth with periodontic-endodontic lesions in 25 patients (10 women and 15 men) based on the classification by Simon et al. (1972), and report on the results of reexamination after various time intervals. 48% of the involved teeth had a combination of periodontal and endodontic pathology, in 52% the inflammation was purely of endodontic origin. Clinical (probing pocket depth) and standardized radiographic examinations were performed at baseline and 5,12 and 24 months after endodontic treatment. According to a special treatment plan all involved teeth received endodontic treatment first, followed by periodontal treatment if indicated (6 months after endodontic treatment).
Results: During the observation period of 24 months all 27 teeth remained in the mouth. The probing pocket depth improved from 9,2mm (SD ± 2,5) at baseline to 4,7mm (SD ± 2,7) at the 5- or 12-months recall examination (p < 0,01). Radiographs showed signs of improvement (higher radiographic density of bone, reestablishment of a regular periodontal space) in 74% of our cases.
Conclusion: The treatment of perio-endo lesions requires careful diagnosis and treatment planning, in order to achieve good therapeutic results.