Discrepância da dose de radiação em face posterior da glândula tireoide em protocolos panorâmicos: um estudo em phantoms

Abstract

Imaging exams are widely used in dentistry, as are radiographic exams. With regard to pediatric patients, radiographic examinations can assist in a more accurate diagnosis, as well as in the development of treatment plans. A negative point is that the dose of radiation, when in excess or used inappropriately, can cause damage to some organs, such as the thyroid gland. Objective: to evaluate, through RP, the discrepancy of ionizing radiation in the posterior region of the thyroid gland using children's anthropomorphic simulators. Methodology: study applied to phantoms that simulate children aged 6 and 11 years old. Two exposures were made on each radiographic film, after which they were processed and analyzed using a lux meter in the physics laboratory. Both stages were carried out at the University of Caxias do Sul. Results: the PP panoramic protocol performed on the 11-year-old anthropomorphic simulator had the lowest radiation rate. As expected, the phantom that had the highest dose received was the 6-year-old, using protocol G. Final considerations: there are protocols available that aim to reduce radiation doses in child patients during panoramic radiography. It is up to professionals to use it to ensure greater protection for children, as well as their sensitive organs. [resumo fornecido pelos autores]