Yafteh

Background:: Decades have passed since the use of radiographic technology as an accurate paraclinical tool and it has always been tried to observe protective measures against ionizing radiation. This issue is especially important in the field of dentistry due to the frequent use of radiographs in the office. Accordingly, the present study was conducted to determine the principles of radiation protection in dental offices in Ilam. Materials and Methods:This was a descriptive cross-sectional study. The number of samples was equal to 42 dental offices in Ilam. Information completed by checklist. Data were collected by SPSS24 software at a significance level of 0.05 and descriptive and inferential statistics. Results: There was no significant relationship between personnel protection methods with age and work experience, also between the device with gender and work experience (P>0.05). There was no significant relationship between processing method and between exposure time with age, gender and work experience (P>0.05). There was no significant relationship between radiography technique and age and gender (P>0.05) but there was a significant relationship with work experience (P<0.05). There was a significant relationship between the radiographer with gender and work experience (P<0.05) . Conclusion: The results of this study indicated that dental

Background: Today, the use of dental radiography equipment in dental centers has increased due to its high application in the diagnosis of dental diseases. As a result, concerns are increasing regarding repeated exposure to this low dose level of radiation. Therefore, the knowledge and practice of dentists about radiation protection are essential for themselves and the patients. This study aimed to assess the knowledge and practice of dentists about radiation protection.
Materials and Methods: This cross-sectional study was performed based on a questionnaire in several cities of Iran. The first part of the questionnaire included such information as gender, years of work experience, and participation in radiation protection workshops. The second, third, and fourth sections consisted of questions on radiobiology, radiation protection, and performance, respectively.
Results: In this study, 94 dentists participated, and the mean scores of dentists (out of 5 points) for radiobiology knowledge, radiation protection knowledge, and performance were obtained at 2.66±1.1, 2.80±1.01, and 2.87±1.37, respectively. The results of Pearson analysis showed that general knowledge had a significant relationship with performance (P=0.014). There was also a significant relationship between the history of participation in radiation protection workshops and performance (P=0.01).
Conclusion: It was found that more knowledge about the effects of ionizing radiation on the body and more awareness of the principles of radiation protection would help dentists to better observe the practical principles of radiation protection. Also, participating in radiation protection workshops could increase dentists' knowledge, and therefore, improve their performance.
 

Background: The mandibular bone, similar to other bones in the human body, has a number of effective anatomical features that the use of radiographic images of these features can be effective in various findings, such as forensic dentistry. The present study aimed to estimate age, gender, and height by measuring the anthropometric radiographic indices of the mandible in 20-50-year-olds of Iranian race.
Materials and Methods: This cross-sectional study was performed on 100 people (50 female and 50 male) who were referred to the Orthodontics Department of Ilham Dental School in 2018. The required information was extracted and recorded from patients' panoramic radiographs. Statistical analysis was performed using descriptive statistics, t-test, and SPSS (version 22) software.
Results: The results of this study showed no significant difference between any of the studied variables with age (P>0.05). However, a significant difference was observed between mandibular width, mandibular height, gonial angle, mandibular canal, and the superior-inferior position of the mandibular foramen with gender and height (P<0.05). Moreover, no significant difference was found between the location of the mental foramen and the posterior and anterior position of the mandibular foramen with height (P>0.05). In addition, although no significant difference was seen between the antegonial angle and gender, the antegonial angle had a significant relationship with height (P<0.04).
Conclusion: There is a significant relationship between skeletal variables and gender and height, and it may be possible to determine the gender and height of individuals by evaluating radiomorphometric indices.