Many patients have voiced their concerns recently about dental radiographs or x-rays. Much of their concern has arisen from a recent study which has been quoted on local and national tv programs.
The American Dental Association has issued the following statement on this study:
The ADA Division of Science has carefully reviewed the study and notes some weaknesses in the study design and interpretation of the results:
- The findings are based on patient recall of X-rays taken years ago and people’s memories can be unreliable.
- Advances in X-ray technology—equipment improvements, faster film speeds and digital imaging—have successfully reduced radiation exposure.
- The study was observational, meaning it cannot establish a cause-and-effect relationship between dental X-rays and meningioma.
- The results of the study did not appear to be dose-related as would be expected.
Considering these weaknesses and the small size of the reported effect, this study shouldn’t raise significant concerns. However, it’s a good reminder that dental X-rays should be taken only when the dentist expects the diagnostic yield to affect patient care.