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D. Goodarzi Pour , S. Ebrahimi Moghaddam ,
Volume 17, Issue 4 (1-2005)

Statement of Problem: A few decades have past from using radiographic technology as an accurate paraclinical method and always protective measurements is applicated against ionizing radiation. As dental radiography is a routine procedure in dentistry the importance of protective strategies is clear.
Propose: The aim of this descriptive study is to evaluate the protection principles in centers which have intraoral radiographic devices in Yazd.
Material and Methods: We have considered all three aspects of practitioner, environment and patient protection using questionnaire and visiting those centers.
Results: 33/7% of dental offices ,10 clinics ,3 institution and faculty of dentistry had intraoral radiographic equipments. Stablishment of protection principles for radiographer was favorable. 7.7% of centers had x-ray room with leaded walls, 23.1% had curtain , in 69/2% of centers radiographers stood in correct position and distance while taking radiograph. Regarding to protection of environment, beams leakage control in 23.1% dental offices, 70% of clinics, all institution and faculty of dentistry have done.
Conclusion: Non of the centers used rectangular localizator, thyroid shield, film holder and just some centers used leaded apron in specific circumstances. We have concluded that patient protection constitute less consideration. Generally lack of protective consideration is related to deficient knowledge of operators. Lack of information about protection equipments causes decrease of demanding of these tools and ultimately lack of these equipments in the market.
K. Ghazikhanlousani, A. Eskandarlou,
Volume 22, Issue 3 (12-2009)

Background and Aim: In recent decades many guidelines has been conducted by radiation protection organizations about radiation protection in dentistry. This study was designed to evaluate the observance of these guidelines in educational clinics of all dental schools in Iran.
Materials and Methods: In this cross-sectional study a questionnaire based on National Radiation Protection guidelines was conducted. The questionnaire consisted of questions about radiation protection principles in dental radiography that is needed for patients and personnel protection and quality control of radiological instruments. The questionnaires were completed by the responsible person of each radiology department of dental schools (18 schools). After gathering the data, the results were compared with radiation protection standards.
Results: There was proper condition in the case of the existence of radiation protection facilities, such as lead apron, thyroid shield and lead impacted walls. However, personnel rarely use these facilities. Usage of high speed films and existence of automatic processor in dental schools was an appreciable point. The main problem was related to the lack of regular quality control programs.
Conclusion: The observance of radiation protection regulations in radiology departments of dental schools was proper. But majority of departments had no regular quality control programs and the use of digital systems in dental radiography was not common.

Saeed Vahid Tazeh Kand, Asie Eftekhari,
Volume 33, Issue 3 (10-2020)

Background and Aims: Radiography is one of the most important para-clinical methods in diagnosing and selecting treatment in dentistry. Due to the potential dangers of X-rays for patients, the professional responsibility of the dentist requires that unnecessary radiographs to be avoided. The aim of this study was to investigate the awareness of dentists in Zanjan about the principles of radiation protection in 2019.
Materials and Methods: This cross-sectional study was performed on 107 general dentists and specialists working in Zanjan and the questionnaires were distributed among them. The level of awareness of dentists in 27 questions of radiographic prescribing questionnaire was evaluated and in each of the mentioned questions, their gender, age, work experience, participation in retraining, having X-ray machine in the field of dentistry and type of activity were evaluated. Data were analyzed by Chi-square test, Independent T-test, and ANOVA using SPSS software version 22.
Results: The results showed that the level of knowledge of general dentists about the principles of radiation protection (14.35±3.08) was lower than that of specialized dentists (17.19±2.35). Those who participated in retraining workshops (13.85±2.99) had less knowledge than those who did not (15.97±3.97), which was statistically significant (P<0.05); However, there was no significant difference in the dentists' knowledge about the principles of radiation protection based on gender, age, type of activity, having an X-ray machine at the place of treatment, and history of clinical experience (P≥0.05).
Conclusion: Awareness of dentists at various levels was moderate. Therefore, designing and holding more purposeful retraining courses to maintain and improve the level of awareness of dentists according to the guidelines provided by the authorities, still seems to be necessary.

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