46 patients with chronic generalized periodontitis (GP) of stage III were operated. They were divided into two groups. Group I included 20 people who underwent the traditional modified Cieszyński-Widmann-Neumann surgery; patients of Group II (26 persons) were performed modified Cieszyński-Widmann-Neumann surgery improved by periosteum penetration. After the treatment, the mean value of the Schiller-Pisarev test was found to be higher in the patients of Group I (2.5 ± 0.05%) compared to the corresponding index of Group II (0.95 ± 0.04%). After the treatment, the mean value of bleeding index constituted 0.77 ± 0.04 points in Group I and 0.32 ± 0.04 points in Group II.
The dynamic radiological examination of alveolar processes in patients in 6 months after the operation detected clear signs of osteo-reparative processes. The slight increase in the height of the alveolar process by 19% in patients of Group I and by 40% in the patients of Group ІІ indicated to this process. With the increase in the observation time, the bone structure in the patients of Group II changed and differentiated into a mature one with a characteristic trabecular pattern, and it did not differ from adjacent bone sites.
Consequently, the use of periosteal penetration in the surgical treatment of patients with GP of stage III has advantages over the traditional treatment.