Did you know that in radiological procedures, a small increase in distance results in a large decrease in radiation dose? This is called the inverse square law and plays an important role in the safe performance of dental X-ray examinations.
Our continuing education course highlights how taking distance during X-rays can increase safety - a topic relevant to every dentist and/or assistant.
What exactly does the square law mean?
Radiation from a point (such as the focus or scattering radiation from the patient's head) spreads in all directions. When the distance to that source is doubled, the radiation spreads over an area four times larger. This means the dose at that double distance is four times lower. And at three times the distance, the dose even decreases by a factor of 9.
2x distance = dose reduction factor 4 (2 squared)
3x distance = dose decrease factor 9 (3 squared)
It is fascinating how an extra step backwards already makes a big difference.
Greater understanding of dose-saving measures
In our continuing education course for dentists, assistants and dental hygienists alike, we take a closer look at the practical application of the squared law and other techniques to minimise radiation risks. Our aim is to use this to provide you with practical tools for even safer practice.
Interested in learning more about this topic and other aspects of radiation safety in dentistry? View the details of the continuing education here and discover what this knowledge can mean for your daily practice.
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