RADIATION SAFETY | COMPREHENSIVE
STUDY GUIDE, PRACTICE QUESTIONS,
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Updated 2026 Questions and Answers
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, What are X-rays? A form of electromagnetic radiation that pass through the human body to produce
images of bone/teeth/nerves
A licensed X-ray employer must take all precautions necessary to provide protection to all individuals exposed to
radiation
Radiographs are used to help a dentist prevent, monitor and diagnose potential health issues in a patient's mouth
X-rays are invisible beans that pass through soft tissue and are absorbed by dense tissue to produce
detailed images
Radiation can Affect body tissues and cells that can carry hereditary materials for future generations
Intraoral X-rays are the most common type of x-ray, they give a high level of detail of the tooth, bone and
supporting tissues of the mouth.
Adult issues detected by x-rays areas of decay, damages in filings, possible dental/periodontal disease, infection or
nerve death, place or plan bone for implants
Child and teen issues detected by x-rays find decay, monitor tooth growth and development, determine if permanent teeth are
coming in properly, help plan braces
NCRP National Committee on Radiation Protection
The NCRP has established acceptable levels of ionizing radiation exposure
MPD maximum permissible dose