cone cut

cone cut

An area of a dental radiograph that was not exposed to radiation during imaging as a result of improper aiming of the primary beam. To avoid this problem, the proper point of entry must be carefully calculated.
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References in periodicals archive ?
Cone Cuts: Cone Cut errors occur when the x-ray cone is not centered over the film or sensor, creating a white unexposed image on the radiograph.
Cone cuts are common on bitewing films when it is hard to see the film.
Apex incomplete, Elongation and Cone cut were the three reasons for unacceptability among the samples.
HURST - Sitting in his new office - the sparsely decorated basement of an unassuming 9,000-square-foot building just outside Fort Worth - Christopher Cone cut to the chase during a discussion of academic accreditation.
Below the park is an immense 2,000-space underground car park which will use natural daylight streaming through a huge cone cut through all four levels to enhance lighting.
The holders have a cone cut into the body that allows for nearly tolerance-free clamping of the tool.
You see, that seemingly innocuous little forcing cone cut in the breech area of the barrel is there for a number of reasons.
Also, it is difficult to detect the cone cut on Figure 13-2.
The barrel was threaded and an l-degree forcing cone cut behind the brake.
* Action job with all internal parts honed, squared and lightened, forcing cone cut to 11 degrees, barrel crowned at 11 degrees and an overtravel stud welded on the rear of the trigger, $95
According to the manufacturer, Tru-Align[TM] eliminates cone cuts and retakes, as well as improving image quality, and it uses the most common film/sensor holders such as those by Rinn and Flow, so there is no change in technique.
It would be great to live in a world where every radiograph taken by a dental assistant is free of distortion, has the correct density and contrast, has no cone cuts or overlapping interproximal spaces, and can be used properly in the detection of dental disease.