<div class="description">
<p>Cone beam computed tomography in endodontics<br>Commander John S. Evered, DC, USN and Commander Terry Webb, DC, USN<br><br>Purpose<br>Computed tomography (CT) was invented by Sir Godfrey<br>Newbold Hounsfield and Allan McLeod Cormack<br>working independently in the late 1960' s and early<br>1970's. They shared the Nobel Prize for Medicine in<br>1979 for this discovery. It was developed as a way to see<br>a "slice" of a patient's body which was not available before<br>with two-dimensional radiographs. CT machines are<br>relatively large and expensive and expose the patient to<br>high doses of radiation. Cone beam CT (CBCT) was<br>developed in the late 1990' s as an outgrowth of computed<br>tomography. It offers reduced radiation exposure and<br>scan time. Cone beam CT was approved by the FDA in<br>2000, and then introduced to North American dentists in<br>2001. Since then, it has presented new opportunities in<br>endodontic diagnosis and treatment planning. This clinical<br>update will define cone beam CT, present its diagnostic<br>abilities compared to conventional two dimensional<br>radiographs, and explain its endodontic applications.
</p>
<br>Subjects: Cone-Beam Computed Tomography; Dentists; Endodontics</div>
<div class="fn value">
U.S. Navy. Naval Postgraduate Dental School</div>
<dl><dd><a rel="nofollow" class="external free" href="https://archive.org/details/2009009ConeBeamComputedTomographyInEndodontics">https://archive.org/details/2009009ConeBeamComputedTomographyInEndodontics</a></dd>
<dd><a rel="nofollow" class="external free" href="https://archive.org/download/2009009ConeBeamComputedTomographyInEndodontics/2009_-_009%20Cone%20beam%20computed%20tomography%20in%20endodontics.pdf">https://archive.org/download/2009009ConeBeamComputedTomographyInEndodontics/2009_-_009%20Cone%20beam%20computed%20tomography%20in%20endodontics.pdf</a></dd></dl>