STOMATOLOGY EDU JOURNAL 2017, Volume 4, Issue 3 SEJ_3-2017_Online - Page 22

COMPLICATION RATE OF OSTEOCONDUCTIVE MEMBRANES OVER FRESH ALVEOLAR SOCKETS colloidal silver, gentamicin sulfate, metronidazole, claforan, rifampicin, dioxidine). Group 2 included 22 patients in whom the “Collost” membrane (ZAO BioPHARMAHOLDING, Moscow, Russia) was used to cover the alveoar socket. Collost is a high-purity bovine collagen of type1 under the form of a fully resorbable membrane. The third group consisted of 25 patients in whom the alveolar socket was not covered. Natural healing of the intra- alveolar blood clot was used to represent a normal control group. Table 1 presents the three groups of patients (group 1 = collapan-group, group 2 = collost-group, group 3 = control) and the reasons for tooth extraction (extraction group due to formation of apical cysts, extraction group due to chronic periodontitis, extraction group of third molars). Grouping patients in the observation groups according to the volume of the bone lesion is presented in Table 2. According to the data presented in tables 1 and 2, it becomes obvious that the patient groups were comparable. There were no significant differences in the average age of each patient group. None of the participants in the study had any traumas, surgeries, somatic diseases requiring medical rehabilitation, maxillofacial and neck inflammation in the patient history, and were comparable according to the index of tooth decay, Table 1. Grouping patients in the observation groups according to the diagnosis. Diagnosis of the patients included in the observation group Observation groups Group 1, 30%, N=20 Group 2, 33%, n=22 Group 3, 37%, n=25 Apical cyst (from one of the frontal teeth of the lower jaw) 5 7% 20% 6 9% 27% 7 11% 28% Chronic periodontitis (molars and premolars of the lower jaw) 9 13% 45% 9 13% 41% 11 16% 44% Dy