X-ray at the clinic – concepts and radiation safety
What the image shows, and how we protect against radiation
X-ray is an important tool at the clinic because it allows the dentist to see holes between the teeth, the bone around the roots and other things that cannot be seen in the mouth. As an assistant you encounter X-ray as a concept and as part of the clinic's routines and safety.
§What is X-ray used for
X-rays are used for diagnostics – finding and assessing e.g. caries, inflammation at a root or bone conditions – and to monitor treatment. The image is a basis for the dentist's decision, not something you take without reason.
§Typical records (as a concept)
- 01Smaller images of individual teeth or areas inside the mouth.
- 02Overview shots showing a wider picture of the jaws.
- 03Which type is chosen is determined by what the dentist needs to see.
§ALARA – as low as reasonably achievable
A basic principle in all work with radiation is to keep the dose as low as reasonably possible and only take pictures that are professionally necessary. This means correct technique so recording does not need to be repeated and that you do not take more pictures than necessary.
§Protection and procedures
Radiation protection is about distance, shielding and only exposing when necessary. The clinic has fixed routines for how staff protect themselves and the patient, and for maintenance and control of the equipment.
§The assistant's role
You often prepare for the scan, help the patient get comfortable, and handle the images in the journal system. Calm and clear guidance of the patient – hold still, bite here – makes the scan easier and reduces the need to retake it.