Dose reduction in dental radiography

doi:10.1016/0300-5712(90)90106-O

Journal of Dentistry

Volume 18, Issue 4, August 1990, Pages 171-184

https://doi.org/10.1016/0300-5712(90)90106-O Get rights and content

Abstract

All exposures to ionizing radiation for medical and dental purposes carry risks to both the patient and staff. It is now accepted practice that all exposures should be kept as low as reasonably practicable to minimize these risks. The various methods currently available for dose limitation in intraoral and panoramic radiography and their effects on image quality are considered. In intraoral radiography the use of fast (E-speed) film and rectangular collimation offer dose reductions of approximately 50 per cent and 60 per cent respectively. Constant potential X-ray units, longer focus-to-skin distances and rare-earth filtration will permit further dose reductions. In panoramic radiography the radiation dose to the patients can be reduced by up to one-eighth by combining the use of constant potential X-ray units, rare-earth intensifying screens and rare-earth filtration.

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Traditionally, round collimation is used for intraoral radiography. A circular collimation of 6 cm of diameter is approximately 135% larger in area than a conventional periapical dental film of size No. 2, indicating considerable scope for further collimation [67]. As rectangular collimator decreases the radiation dose by up to fivefold as compared with a short circular one [68–70], so radiographic equipment should equipped with rectangular collimation for periapical and bitewing radiographs [61].
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Dental radiography technique and equipment: How they influence the radiation dose received at the level of the thyroid gland
2007, Radiography
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The phantom study proved a useful trial for detecting the radiation dose at the thyroid gland position and conclusively supported the use of the ‘low dose’ combination of the paralleling technique and rectangular collimator. Background research also identified that, despite evidential proof,4–6,8,14 the choice of the paralleling technique and rectangular collimator is not sufficiently integrated within dental practices. This investigation, in collaboration with others, identifies the need for more awareness concerning radiation hazards within dental practices, so that consequentially the application of radiation protection measures seem justifiable to the dentist or operator.
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ReviewDose reduction in dental radiography

Abstract

J. Am. Dent. Assoc.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med.Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

J. Endodont

J. Endodont

Oral Surg. Oral Med. Oral Path ol.

J. Am. Dent. Assoc.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

J. Endodont.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

J. Am. Dent. Assoc.

J. Prosthet. Dent

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

J. Endodont.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

J. Am. Dent. Assoc.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

J. Am. Dent. Assoc.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

Oral Surg. Oral Med. Oral Pathol.

The Radiographic Detection of Initial Carious Lesions on the Proximal Surfaces of Teeth

A comparison of Ektaspeed and Ultraspeed films using manual and automatic processing solutions

Oral Surg. Oral Med. Oral Pathol.

The influence of scattered radiation on the quality of intra-oral radiographs

Dentomaxillofac. Radiol.

Review
Dose reduction in dental radiography