Browsing by Author "Koc, A."

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Clinical and Neurological Findings of Severe Vitamin B12 Deficiency in Infancy and Importance of Early Diagnosis and Treatment
(2013) Demir, N.; Koc, A.; Üstyol, L.; Peker, E.; Abuhandan, M.
Aim Nutritional vitamin B12 deficiency among children in developing countries may lead to a severe clinical status. In this article, the clinical manifestations of vitamin B12 deficiency and the consequences of delay in its diagnosis have been evaluated. Methods A total of 41 patients who were hospitalised and treated with the diagnosis of severe vitamin B12 deficiency in the paediatric haematology department of the hospital were enrolled in the trial. The diagnosis of severe vitamin B 12 deficiency was based on haematological values, a serum vitamin B12 level of <100 pg/mL and a normal level of folic acid. Mental, neuro-motor and social developments of the enrolled patients were assessed by the same physician using the Ankara Developmental Screening Inventory. Results The mean age of 25 male and 16 female patients was determined as 12 (6-18 months) months. Almost all of the children had been fed with breast milk and a poor nutritional state was found in all of the mothers. Non-specific findings such as growth retardation (78%), hyperpigmentation of the skin (78%), diarrhoea (63.4%), convulsion (14.6%), weakness, reluctance to eat, vomiting, irritability and tremor were found in all the patients, in addition to hypotonia, motor retardation and pallor. Treatment with vitamin B12 provided recovery in all the patients. The mean age of the patients with full recovery was 11.7 months, while the mean age of patients with partial recovery was 12.9 months. Conclusion As a delay in the diagnosis causes irreversible neurological damage, early diagnosis and treatment is highly important. © 2013 The Authors. Journal of Paediatrics and Child Health.
Evaluation of Trabecular Bone Microstructure of Mandibular Condyle in Edentulous, Unilateral Edentulous and Fully Dentate Patients Using Cone-Beam Computed Tomography
(Via Medica, 2020) Koc, A.; Kavut, I; Ugur, M.
Background: The aim of this study was to compare the trabecular bone microstructure of the mandibular condyle in edentulous, unilateral edentulous (Kennedy Class II), and fully dentate patients. Materials and methods: The study used the cone-beam computed tomography (CBCT) images of 17 fully dentate (34 condyles), 16 edentulous (32 condyles), and 17 unilateral edentulous patients (34 condyles) aged 19 to 80 years. The trabecular bone microstructure of the mandibular condyle was evaluated on 8 consecutive cross-sectional images of these patients. In the microstructure analysis, structural model index (SMI), ellipsoid factor (EF), bone volume fraction (BV/TV), trabecular thickness (Tb.Th) and trabecular seperation (Tb.Sp) were measured. Results: There was no significant difference between the mean SMI, BV/TV, EF and Tb.Th microstructure values of each group (p = 0.243, p = 0.095, p = 0.962, p = 0.095, respectively). However, there was significant difference in terms of mean Tb.Sp between the groups (p = 0.021). The trabecular structure in all three groups was more rod-shaped. No correlation was found between age factor and microstructure values. Conclusions: Considering the in vivo microstructure analysis of CBCT images, it can be said that teeth loss does not have a significant effect on the microstructure parameters excluding Tb.Sp of mandible condyles and does not affect mandibular condyle trabecular endurance.
Socio-Demographic Determinants of Dental Anxiety and Fear Among College Students
(Yuzuncu Yil Universitesi Tip Fakultesi, 2019) Ozlek, E.; Yıldırım, A.; Koc, A.; Boysan, M.
The purpose of this study is to investigate the relationships of dental anxiety and fear with socio-demographic and clinical features, as well as physical exercise frequency. A total of 230 undergraduate students from five different majors including den tistry, medicine, veterinary medicine, physical education vocational high school, and faculty of education participated in the study. The mean age of participants was 23.27 (SS=2.09). A socio-demographic questionnaire, the Modified Dental Anxiety Scale (MDAS) and the Dental Fear Scale (DFS) were used in the study. In order to evaluate the correlates of dental fear and anxiety, two multiple regression analyses were performed where the scores of Dental Fear Scale and Dental Anxiety Scale were dependent variables. Multiple regression analyses showed that both dental fear and dental anxiety were significantly associated with being of younger age, being female, having a prior history of a psychiatric disorder, and less likely to exercise physically. Considering differences across five majors, medicine and dentistry students were less likely to report dental fear and anxiety relative to other majors. We concluded that females, individuals with a younger age, individuals with a psychiatric history, an those less likely to exercise physically were at greater risk of dental anxiety and fear. © 2019, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.