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Estimated radiation risks associated with endodontic radiography.

R A Danforth¹, M Torabinejad

¹School of Dentistry, University of Southern California, Los Angeles.

Endodontics & Dental Traumatology

|February 1, 1990

Summary

This summary is machine-generated.

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Radiation exposure from dental X-rays during root canal therapy poses minimal cancer and cataract risks. Calculated risks are comparable to everyday activities like smoking or driving short distances.

Area of Science:

Dentistry
Radiology
Public Health

Background:

Patients undergoing endodontic procedures may worry about radiation exposure risks.
Concerns include potential development of tumors and cataracts from diagnostic imaging.

Purpose of the Study:

To quantify the risks of tumors and cataracts associated with radiation exposure during endodontic therapy.
To provide patients with accurate risk information based on established scientific data.

Main Methods:

Utilized established dose and risk assessment information.
Calculated the probability of specific adverse health outcomes (leukemia, thyroid and salivary gland neoplasia, cataracts).
Compared radiation-induced risks to risks from common activities like smoking and driving.

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Main Results:

The risk of leukemia from a 90 kVp endodontic X-ray survey is 1 in 7.69 million.
Risks for thyroid and salivary gland neoplasia were calculated as 1 in 667,000 and 1 in 1.35 million, respectively.
A patient would need 10,900 surveys to reach the cataractogenic dose threshold.

Conclusions:

Radiation risks from endodontic radiography are exceedingly low.
The use of lower kilovoltage peak (kVp) settings offers only marginal risk reduction.
Patient anxiety regarding radiation exposure during endodontic treatment is largely unwarranted.