Overlapping of dental X-rays, particularly in the interproximal areas, occurs when the X-ray beam is not perpendicular to the tooth surfaces and the image receptor. Here are some common causes: Incorrect Horizontal Angulation: The most frequent cause of overlapping is improper horizontal angulation.

The x-ray beam should be aimed directly between the contact points of the targeted teeth in order to open the interproximal surfaces (Figure 23). Horizontal alignment errors cause the image to shift anteriorly or posteriorly, resulting in the overlapping of …

2023年5月15日 · To avoid horizontal overlap, the central ray should be perpendicular to the arch of the teeth and directly through the interproximal spaces. With proper training and education on the concepts to mitigate overlapping, we can avoid …

To improve the quality of bitewing radiographs a Bite Registration Technique (BRT) was developed by modifying a commercially available Rinn XCP Instrument.

The interproximal areas are overlapped, thus obscuring any carious lesions. In this example, the tubehead is directed too mesial, determined by the lingual cusp (shorter cusp) positioned mesial to the buccal cusp (longer cusp). Solution: Rotate the tubehead toward the distal. Figure 8 Problem: The level of alveolar bone imaged in the

2016年9月1日 · Horizontal overlap is a result of the X-ray beam not passing through the open interproximal area at right angles to a properly positioned detector. Correcting this error can usually be achieved by inclining the tubehead in a more mesial or distal direction.

2015年1月12日 · Intraoral images can be divided into three categories: (1) periapical projections, (2) bitewing projections, and (3) occlusal projections. Periapical radiographs should show all of a tooth, including the surrounding bone. Bitewing images show only the crowns of teeth and the adjacent alveolar crests.

2008年3月31日 · Use bitewings? Forced to place receptors diagonal to the teeth? Watch out for horizontal angulation errors, which produce a too-wide image with interproximal overlap. The solution is to shoot the x-rays through interproximal surfaces. Central ray cone-cut errors.

2017年10月29日 · The EB radiographs, which generate fewer images of overlapping proximal surfaces, have the advantage of detecting more carious lesions and bone loss findings than the IB radiographs do, but with the disadvantage of more false-positive diagnoses.

2020年6月30日 · Exposure errors include underexposed, overexposed, and unexposed receptors, resulting in images that are too light or dark. Technique errors involve improper receptor placement or angulation, which can cause issues like absence of apical structures, overlapped contacts between teeth, or cone-cut images where part of the image is missing.