Abstract This study was aimed to investigate awareness of periodontitis among undergraduate students at a faculty of medicine in Bosnia and Herzegovina. This cross-sectional study was conducted among undergraduate students of the Faculty of Medicine Foca enrolled in three study programs (Medicine, Nursing, and Special Education and Rehabilitation). Knowledge and awareness of periodontitis were collected using a structured questionnaire. Approximately 58% of students had heard the term periodontitis. Higher percentage of Medicine and Nursing students identified Gum Recession, Bleeding Gums, Tooth Loss and Loose Tooth as common symptoms of periodontitis compared to Special Education and Rehabilitation students. Knowledge of risk factors for periodontitis differed between the groups, with Nursing students showing greater awareness but also incorrect recognizing of several risk factors. About one third of students answered that Diabetes Mellitus is related to periodontitis (32.4%). Significantly lower percentage of Nursing students assessed their knowledge of periodontitis as poor compared to Medicine and Special Education and Rehabilitation students. The findings revealed a lack of adequate knowledge of periodontitis across all the observed study programs. Strengthening periodontal education within undergraduate curricula is essential, particularly considering the established links between periodontal and systemic diseases.

Objective. The aim of this study was to assess oral hygiene habits, as well as awareness and knowledge among undergraduate students at a Faculty of Medicine in Bosnia and Herzegovina. Methods. This cross-sectional study was conducted at the Faculty of Medicine in Foča and included 333 students across three study programs: Medicine (M), Nursing (N), and Special Education and Rehabilitation (SER). The questionnaire was used to obtain demographic information, as well as data on oral hygiene habits and knowledge of oral health. Results. The largest proportion of students (56.2%) brush their teeth twice daily. A higher percentage of N and SER students brush their teeth longer than M students (p=0.004). Students most often replace their toothbrushes every 3 months or sooner (76.3%); 58.9% regularly visit a dentist; and 61% report no oral health problems. Only 14.4% of students believe that dental plaque dysbiosis is the cause of caries, while more than half of the students (53.5%) do not know the impact of dental plaque. Additionally, more than one-third of students (35.7%) are unaware of preventive measures for oral disease. A greater number of M and N students than SER students reported that oral health is related to cardiovascular disease (p=0.002), and more M students reported that it is related to cancer compared to SER students (p=0.032). Conclusion. The results of this study indicate limited knowledge of oral health among students across all three study programs, underscoring the need to improve oral health education for health sciences students.

Urinary tract infections, as one of the most common infectious diseases, contribute substantially to the global healthcare burden, particularly due to the rising prevalence of resistant bacterial strains such as Klebsiella pneumoniae. Background/Objectives: The aim was to investigate the prevalence of urinary tract infection pathogens among hospitalized patients at Saint Apostol Luka Hospital in Doboj during the period 2021–2023. Methods: This retrospective cross-sectional study was conducted at Saint Apostol Luka Hospital, Doboj, Republic of Srpska, Bosnia and Herzegovina. Data from the Department of Microbiology were analyzed for the period 2021–2023, including patients with positive urine cultures (≥103 CFU/mL) of a single uropathogen. Bacterial identification and susceptibility testing were performed according to EUCAST standards, and statistical analysis was carried out using SPSS v24. Results: Escherichia coli was the most frequent isolate (29.2%), followed by Klebsiella spp. (24.2%) and Enterococcus spp. (19.8%). A significant rise in K. pneumoniae prevalence and resistance to multiple antibiotics—including β-lactams, carbapenems, aminoglycosides, and colistin—was observed during the study period. Conclusions: This study revealed that E. coli and Klebsiella spp. were the leading uropathogens, with notable differences in distribution by sex, age, and hospital department. A marked rise in multidrug resistance, particularly among K. pneumoniae, was observed across the study period. These findings underscore the urgent need for continuous surveillance and stronger antimicrobial stewardship to curb resistance trends.

Introduction. Hyperdontia or supernumerary teeth are excess number of teeth in comparison to normal dentition. The aim of this study was to present different variants of permanent supernumerary teeth, as well as their observation or elimination in order to prevent possible complications Case report. Six different cases of hyperdontia are presented in this paper. All hyperdontia cases were multidisciplinary evaluated and individual treatment protocols were applied. Already erupted supernumerary teeth were extracted without surgical intervention. Unerupted teeth were surgically removed or left for observation. Conclusion. Early and frequent dental check-ups are very important for children in order to detect possible dentition irregularities and thus timely start with appropriate therapy.

Introduction. Epulis is a change in gingival tissue that occurs under the influence of chronic irritation. Histologically, there are several different types of epulis. Fibrous epulis is benign tumor of gingiva that most often occurs in interdental papilla area as a result of local irritation (inadequate restorative fillings, carious teeth, subgingival deposits or the combination of them). The aim of this paper is to present a clinical case of fibrous epulis. Case report. A 25-year-old girl reported to the Specialist Center for Dentistry in Foca. Clinical examination revealed a gingival tissue enlargement in the area of the upper jaw central incisors with speech and chewing function disturbances. Intraoral examination revealed a change above the level of gingiva, reddish-pink in color with smooth surface texture and soft consistency. The size of the change was 1 x 1.5 cm. It was connected to the interdental gingiva between teeth 12 and 21 by a narrower base. Clinically, a significant amount of soft and hard dental deposits surrounded the remaining teeth. Remaining gingiva was swollen, red, bleeding on provocation. The anamnesis did not confirm the presence of other acute and chronic diseases. The patient was not pregnant. She was informed about clinical condition assessment, as well as possible therapeutic procedures. Our patient was treated with non-surgical periodontal therapy and surgical excision of the enlargement. After histopathological examination of the removed tissue, the diagnosis was made: "Fibrous epulis cum ulceration". Conclusion. Clinical examination is insufficient for definite diagnosis. Therefore, a histopathological examination of the tissue is mandatory for fibrous epulis definite diagnosis. Treatment of choice is surgical excision of the enlargement and removal of predisposing factors to avoid recurrence.

Introduction. Success in endodontic treatment depends upon the clinician's knowledge and ability to recognize and diagnose the presence of anatomical and morphological variations of the root and canal system. Mandibular canines are usually recognized as having one root and one root canal. In spite of the low incidence of mandibular canines with one root and two canals, their appearance should not be neglected due to the fact that the presence of a second canal in these teeth leads to difficulties in endodontic treatment. The aim of this case report is to describe mandibular canine with two root canals. Case presentation. 45-year-old patient presented for medical care due to the pain in a lower right canine. Clinical and radiographic examination revealed composite filling and caries with periapical radiolucent area and sensitivity to percussion in the mandibular right canine. By careful evaluation of the diagnostic radiology, it was observed that the mandibular canine had two canals. The patient was diagnosed with acute apical periodontitis and root canal therapy was given following the standard protocols. Conclusion. Although the prevalence of two canals in mandibular canine is low, the clinician should always be mindful of variations in the number of canals for appropriate therapeutic management.

Introduction/Objective. Malocclusions are one of the most frequent disorders in dentistry, and pose a risk for the onset of caries and periodontal diseases. Fixed orthodontic treatment solves the problem of malocclusions; however, it requires simultaneous cooperation of the patients, parents, and dentists involved. The objective of this study is to examine the effects of fixed orthodontic therapy on the Streptococcus mutans and Lactobacillus spp. bacteria in saliva, the pH value, and buffering capacity of saliva. Methods. The research was carried out at the Faculty of Medicine in Foca, Department of Dentistry. The study included 100 respondents, aged 13 to 17 years. The respondents were divided into two groups: the study group (respondents wearing fixed braces) and the control group (respondents not subjected to fixed braces therapy). Saliva samples were taken from the respondents four, 12, and 18 weeks after the start of the orthodontic therapy. The study used the bacteria caries risk test (CRT) and CRT buffer (Ivoclar Vivadent). Results. The study showed an increased number of bacteria in saliva of the respondents during all three follow-up periods (χ2 test, p = 0.001). The largest numbers of the Streptococcus mutans and Lactobacillus spp. bacteria were found in week 12 of the therapy. Saliva pH value and buffering capacity of saliva increased statistically significantly in week 12 of the therapy (χ2 test, p = 0.001). Conclusion. Oral conditions in patients changed during the fixed orthodontic therapy: the number of bacteria increased, the pH value and buffering capacity of saliva changed. It was necessary to use preventive measures in order to avoid complications during the fixed orthodontic appliances therapy.

Introduction. The success of endodontic treatment depends on the adequate biomechanical preparation and obturation of the entire root canal system. The untreated or poorly debrided/obturated root canals are among the most frequent causes of endodontic treatment failure. The endodontic treatment of maxillary molar has the highest failure rates due to the complexity of their root canal anatomy. The aim of the study is to present the endodontic treatment of maxillary second molar with two roots and two canals. Case report. The clinical case report presents the endodontic treatment of maxillary second molar with two roots and two canals in a patient, aged 32 years. After the analysis of preoperative diagnostic radiograph, opening the pulp chamber and access cavity preparation, two canal orifices were localized. After the biomechanical preparation, root canals were obturated with the Gutta-percha points and sealer during the same visit. Conclusion. Although maxillary second molar most commonly varies in terms of the number of root canals in the buccal roots, less common variations in anatomical and morphological traits, such as the presence of two roots and two canals, should be considered during endodontic treatment.

Summary Introduction Caries and orthodontic anomalies in school-age children lead to disturbed aesthetics, oral functions (chewing, swallowing, and speech), predisposition to trauma and the onset of periodontal diseases. The aim was to assess dental health and frequency of orthodontic anomalies in children aged 8-9 years in the municipality of Foča. Methods The research was conducted in the primary school Sveti Sava in Foča, where the total of 112 children age 8-9 years were examined. An informed consent was obtained from parents and school director for each student. Dental examination was performed using standard dental method, a mirror and a probe under artificial lighting. Children received instructions on proper nutrition, oral hygiene, tooth protection and elimination of bad habits. Results Among 112 examined boys and girls of selected ages, very high person caries index (PCI) was found (78.57%). A total of 548 caries affected teeth were found (boys 331 (24.62%), girls 217 (16.14%) (p <0.05)). Fifty-nine children had caries lesions on permanent teeth (boys 39 (2.9%), girls 20 (1.5%) (p <0.05)). Sagital abnormalities of the bite were present in 39 (34.82%) children, while 38 (33.92%) anomalies were related to vertical bite irregularities, 10 (8.92%) of them had open bite and 28 subjects (25%) had deep bite (p> 0.05). Conclusion Large number of teeth was affected with caries lesions (548) in eighth-year-olds, while orthodontic anomalies, mostly sagital abnormalities of bite were found in 39 subjects.