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    Determination of sex using frontal sinus morphometry with CBCT
    (Elsevier, 2024) Yurdabakan, Zeliha Zuhal; Okumuş, Özlem
    AIM or PURPOSE The purpose of this study is to evaluate the morphometry of the frontal sinuses and compare it with the nasal, maxillary, cranial and the mandible widths, as well as their relationship with age, sex, and side. MATERIALS and METHOD The randomly selected 208 patients aged from 20 to 85 years were analysed. The measurements of mesio-distal, antero-posterior, and supero-inferior dimension of frontal sinus, cranial width, nasal width, maxillary width, and mandibular width were examined using cone-beam computed tomography (CBCT). Statistical analyses were performed using Kolmogorov–Smirnov, paired sample t test, Oneway ANOVA test, Student's t-test. P values < 0.05 were accepted as statistically significant. RESULTS In all parameters, the average values of males were statistically significantly higher than those of females (p<0.05). There was no statistically significant difference between the mesio-distal, antero-posterior, and supero-inferior frontal sinus measurement between the right and left sides in all cases (p>0.05). There was a statistically significant difference in terms of total anterioposterior measurement among age groups (p<0.05). CONCLUSION(S) This study revealed that the measurements of frontal sinuses and other cranial parametres can be useful in sex determination using CBCT.
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    Knowledge, attitude, practice about radiation safety of dental students
    (Elsevier, 2024) Okumuş, Özlem; Yurdabakan, Zeliha Zuhal
    AIM or PURPOSE The purpose of this questionnaire was to evaluate the knowledge, attitude and practice among dental students about radiation safety in a dental school. MATERIALS and METHOD The third, fourth and fifth-grade students at the Altınbaş University Faculty of Dentistry were participated in the study. A questionnaire consisting of 9 multiple-choice, 15 true/false questions related to basic knowledge of radiation safety, and 7 true/false questions regarding practice and attitude was administered. Statistical analyses were performed using Chi-squared test and Fisher Freeman Halton exact test. P values < 0.05 were accepted as statistically significant. RESULTS 164 students participated in the questionnaire and 32.9% of the participants were third-grade, 36% of them were fourth-grade, and 31.1% of them were fifth-grade students. 93.3% of the students answered ‘‘yes’’ to the principle of staying at least 3 meters away from the patient and using a lead apron during X-ray examination. The correct response rate to the question ‘‘What is the ALARA principle?’’ was significantly higher among 3rd-grade students (98.1%) compared to 4th-grade (88.1%) and 5th-grade students (86.3%) (p<0.05). CONCLUSION(S) It has been observed that students have sufficient knowledge about attitudes and practical applications regarding radiation safety and protection.