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Face & sinuses X-ray positioning

How to position for each of the 8 face & sinuses X-ray views: where the patient goes, where to centre, which receptor and distance to use, and what a good image looks like.

By the ScanFlo Editorial Team · Updated

In this section · X-ray positioning

X-ray positioning/Face & sinuses

The routine face & sinuses views are Mandible oblique lateral, Mandible PA, Nasal bones lateral, Sinuses and face PA and Sinuses and face semiaxial (occipitomental). Mandible AP, Mandible oblique lateral (lying) and Sinuses and face lateral come in when you need to answer a particular question, or when the patient can't manage a routine view. Each guide walks you through the set-up step by step, with a short video, exposure settings for different patient sizes and what a good image should show.

A radiographer is still checking these guides.

Routine views

Extra views

All views in this region

  • Mandible oblique lateral
  • Mandible PA
  • Nasal bones lateral
  • Sinuses and face PA
  • Sinuses and face semiaxial (occipitomental)
  • Mandible AP
  • Mandible oblique lateral (lying)
  • Sinuses and face lateral

Quick reference

Where to centre, how far and which receptor, for every face & sinuses view at a glance. Open a guide for the full set-up.

ProjectionCentre onSIDReceptorBreathing
Mandible oblique lateralthe angle of the mandible of the side examined100 cm18×24 landscape, gridNo breathing instruction needed
Mandible PAthe angles of the mandible, midline100 cm24×30 portrait, gridNo breathing instruction needed
Nasal bones lateralthe nasal bones100 cm18×24 portrait, gridNo breathing instruction needed
Sinuses and face PAthe nasion100 cm24×30 portrait, gridNo breathing instruction needed
Sinuses and face semiaxial (occipitomental)the acanthion100 cm18×24 portrait, gridNo breathing instruction needed
Mandible APthe lips, midline100 cm24×30 portrait, gridNo breathing instruction needed
Mandible oblique lateral (lying)the angle of the mandible100 cm18×24 landscape, gridNo breathing instruction needed
Sinuses and face lateralthe outer canthus, 2 cm posterior100 cm18×24 portrait, gridNo breathing instruction needed

Mistakes that lead to repeats

  • Two sides superimposed on the mandible oblique lateral: angle 15° and tilt the head.
  • Rami asymmetric on the mandible PA: centre the mid-sagittal plane.
  • Nasal bones burnt out on the nasal bones lateral: use the low-kV nasal technique and collimate tightly.
  • Rotation on the sinuses and face PA: align the mid-sagittal plane with the bucky centre.
  • Petrous ridges over the maxillary sinuses on the sinuses and face semiaxial (occipitomental): raise the chin to 45°.
  • Condyles hidden on the mandible AP: open the mouth; use a wedge.

Common questions

Which face & sinuses views are routine?
Usually Mandible oblique lateral, Mandible PA, Nasal bones lateral, Sinuses and face PA and Sinuses and face semiaxial (occipitomental).
What distance (SID) do face & sinuses X-rays use?
100 cm for every face & sinuses view here.
Do face & sinuses X-rays need a grid?
Yes, every view here is taken with a grid.

Try it in ScanFlo: the ScanFlo XR X-ray Room, coming soon, lets you set up every face & sinuses projection in a 3D room and score your positioning. See ScanFlo XR →

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