Effective Doses and Radiation Risks From Common Dental Radiographic, Panoramic and CBCT Examinations

Abstract

This study was aimed at the estimation of the effective doses and radiation risks from dental X-ray examinations based on the data collection in St. Petersburg and the Leningrad Region. The range of mean values of effective doses for intraoral examinations on the X-ray units with film detectors was from 3.5 to 8.2 μSv and for the units with digital detectors—from 1.2 to 2.5 μSv. The mean effective doses for panoramic examinations were 22.9 μSv and for cone-beam computed tomography (CBCT)—530.6 μSv, respectively. The highest detriment-adjusted lifetime risk values were estimated for the 20–24-year-old age group: 40.8 × 10−6 in females and 32.7 × 10−6 in males for CBCT. Effective doses in St. Petersburg and Leningrad region were comparable or higher compared with the published data.

Associated risks with periodontal x‐rays or CBCT scans: Are there any?

“…Panoramic radiographs, on the other end, have an effective dose range of 4 to 61 µSv, with a mean of 20 µSv. [7][8][9][10] CBCT scans'effective dose varies based on the examination's FOV, with smaller FOVs having an average effective dose of less than 100 µSv (mean 4.7 µSv for anterior maxilla, 9.8 µSv for posterior maxilla, and 38.3 µSv for posterior mandible). However, when the FOV is expanded to cover larger regions (usually medical CT), the effective dose can increase to 1000 µSv or more.…”

“…This can result in a full‐mouth x‐rays dose of up to 400 μSv, with a mean of 171 μSv. Panoramic radiographs, on the other end, have an effective dose range of 4 to 61 μSv, with a mean of 20 μSv 7–10 . CBCT scans’ effective dose varies based on the examination's FOV, with smaller FOVs having an average effective dose of less than 100 μSv (mean 4.7 μSv for anterior maxilla, 9.8 μSv for posterior maxilla, and 38.3 μSv for posterior mandible).…”

Development and Validation of a Questionnaire on Radiation Protection in Dentistry

“…Entre los efectos estocásticos, el riesgo principal en odontología es la carcinogénesis (1). Por esta razón, ninguna exposición en odontología puede considerarse completamente libre de riesgo (7).…”

Desenvolvimento de um objeto simulador de maxila e mandíbula infantis utilizando impressão 3D para dosimetria em tomografia computadorizada de feixe cônico

“…Essa diferença na geometria, faz com que a dose de radiação nos exames para ambas as modalidades, seja mais elevada que outras técnicas de exames radiológicos. Portanto, a dose efetiva da TCFC é menor que a dose da TC convencional, e pode ser até 24 vezes a dose de uma radiografia panorâmica (RP) (2) .…”

“…As grandezas são: o Kerma (K), Dose absorvida (D), Dose equivalente em órgão ou tecido (𝐻 ) e Dose efetiva (E), onde (47) : Kerma (K): É o quociente entre a soma das energias cinéticas, 𝐸 , , de todas as partículas ionizantes carregadas liberadas pelas partículas não ionizantes carregadas na matéria de massa 𝑑𝑚, como na Equação (2). Esta grandeza é mensurável e sua unidade é o J.Kg -1 , também conhecida como Gray (Gy).…”