Dental X-ray positioning—made easy!

iM3 canine positioning guide

This article is sponsored content brought to you by iM3.

iM3 has developed a new X-ray positioning kit with the aim of making it possible to achieve full-mouth radiographs on every dog and cat each time they have a ‘dental’ scale and polish.

The system developed is very simple and consists of the positioning kit, including size 2, 4 and 5 bite plates, 30, 45 and 55 degree angle guides and positioning diagrams for dogs and cats (figure 1). In addition, size 2, 4 and 5 image plates are required for cats and dogs (figure 2) developed by iM3 for use in the iM3 CR7 VET X-ray processor.

The general principle is very simple: the CR image plate is put into the bite protector, and the angle guide is placed in the edge of the bite protector in the centre. The angle guide will then give you the exact angle you need (the correct bisecting angle), the distance from the CR plate and the centre of the CR plate.

For example, for a cat’s maxillary lateral view, you use the 30-degree angle guide and a size-2 image plate.

Canine left maxilla view using the 45-degree angle guide and size-5 image plate

For a dog’s maxillary lateral view, you use the 45-degree angle guide and size-5 image plate, demonstrated in figure 3.

The large format, size-5 image plate from iM3 makes it possible to achieve a full mouth series in medium-to-large dogs in as little as six radiographs using just two angles (figure 4). Traditional dental X-ray systems have been limited to small size-2 sensors and even a large number of modern CR systems only scan image plates up to a maximum size 4c or 4—nearly 20mm shorter than the size-5 image plate developed by iM3 and used exclusively in the CR7 VET.


“When obtaining full mouth radiographic sets in dogs, the iM3 size-5 film gives a quick and detailed overview. It’s easy to place and you still have all the fine details. Often almost a whole quadrant can be obtained in one film (canines, premolars and molars). Therefore obtaining dental radiographs in dogs is quicker and easier with the size-5 film, saving important intraoperative time.”  Jens Ruhnau, DVM, Specialdyrlæge, Dipl.EVDC.

Contact iM3 for more information on dental radiology: or ph 02 9420 5766

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