Introduction: Dental caries is the most common oral disease in all age groups. Being more and more frequent in preschool and school-age children, it has become one of the most important problems in oral pathology. The aim of this study was to determine the incidence of dental caries in schoolchildren aged 12 and 15 years in the northern part of Kosovo and Metohija, as well as to inform them about the importance of oral health. Materials and Methods: The study included 626 schoolchildren of both sexes from five schools from the municipalities of Kosovska Mitrovica, Zvečan and Leposavić. Klein-Palmer DMFT system (D-Decayed, M-Missing, F-filled) was used to estimate the prevalence of dental caries the following indices were also used: Person Caries Index, Teeth Caries Index, Average Caries Index and DMFT structure. All the selected children were examined using standard dental diagnostic agents. Tooth surfaces were examined dry under artificial lighting. Results: The average value of DMFT index for children aged 12 and 15 years was 4.2. On average, 92.3% of the examined children had caries. The mean value of caries index was 15.11%.Conclusion: After these new epidemiological studies, it can be concluded that the state of children's oral health, considering the high levels of untreated caries and all other features of DMFT index, is not satisfactory. This situation points to the necessity of applying modern preventive and prophylactic measures to preserve and improve the population oral health.

Biliary pathology represents today one of the most common indication for surgery in abdominalnj surgery. Calculosis gallbladder is a serious pathological condition, that their frequency, severity and possible complications constitute a significant percentage of medical emergencies. Septic complications are the most important factor of morbidity and mortality in biliary surgery. In relation to the gender structure of M: F=160: 519 1 3.2 23.6%: 76.4% is female domination. The highest incidence of biliary diseases in this interval is 91 (13.4%) in 2006, and 75 (11.0%) of 2010 average incidence of 52 patients per year. The lowest incidence was 2002 g 6 (0.9%) patients. The youngest patient was females aged 12 years. The oldest patient who underwent surgery were female, with a 82 yr. The range is 82-12=70g. The average age of the patients was 51 years, with dominant females 76.4%. Cholecystitis chronice is present in 423 (62.3%), cholecystitis acuta 251 (37%). Cholelythiasa 666 98%. Acalculosa 13 (1.91%). Calculosis gallbladder was present in 666 (98.1%) cases. OP: Solitary holelithiasis, 149 (22.4%), multiple holelithiasis 517 (77.6%). The absence of cholelithiasis in biliary diseases was verified in 13 (1.91%) patients. Holecistit empyema was verified in 8 (1.18%) cases. The structure of the surgical findings shows that gallbladder represents the dominant place of infectious processes in the acute pathology of extrahepatic bile ducts. 436 (64.2%). Hydrops 47 (10.8%). Empyema 102 (23.4%). Acute complications related to the spread of infection from the gallbladder put the main biliary tree and free abdominal cavity were registered in 2 (0.46%). Abscessus subhepatis 11 (2.52%). Choledocholythiasis 6 (1.38%). Cholangitis ac 17 (3.9%). Neo vesicae felleae 7 (1.03%). From that polypus vesicae felleae 2 (0.4%), ca vesicae felleae 4 (0.59%). There hepatocholedoci 1 (1.15%). Meta and hepato 4 (0.59%). M: F = 2: second Icterus 8 (1.18%). The ratio of M: F = 7: 1. Incidenca baktibilije analyzed in the entire series was 57%. Microbiological analysis of samples identified teen bacterial species.