Intra Oral Positioning

Tips and Tricks:

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• Use the paralleling technique using a Rinnstyle positioning device set. These holder sets do the work for you and guarantee a good image every time

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• Make sure the exposure settings are correct on the X-ray source (60–65 KVP suggested). You will need to adjust exposure times (pulses), depending on the X-ray source and the physical size of the patient. Remember that maxillary molar images need the most exposure time and mandibular anterior images need the least amount of time

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• Place the sensor parallel to the teeth, but not necessarily up against the teeth

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• Maxillary shots—place the sensor at the midline of the palate

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• Mandibular shots—place the sensor more towards the tongue if necessary

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• Use a long cone (16") technique for clearer images

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• Make sure the bite block is fully in the patient’s mouth on molar shots

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• If the patient has trouble closing have them stabilise the arm of the holder with their finger

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• Make sure the cone of the X-ray source is parallel to the arm of the holder and directed at the centre of the aiming ring

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• Use a cotton roll as a cushion between the sensor and torii

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• For especially sensitive patients, there are foam cushions specifically made for use with sensors. Many of these work very well with sensitive patients and make placement much more comfortable