1.  On a dry, well-fitting denture, place 6 x-ray markers:

– Place 3 markers on the facial/buccal surface and an additional 3 markers on the palatal surface

– Place the markers on varying axial planes.

– Example: if you place a marker on the buccal area of #2-3, the place your next marker on the lingual area of #4-5 area, the next marker on the facial of #8-9 area and so on.

*Do not place the markers on the intaglio surface of the denture.*

2.  Pre-Scan Patient Instructions:

– Use a bite registration for separation, secure fit, and to eliminate rocking

– Confirm fit by asking the patient “Is the denture fitting correctly?”

– Breathe through your nose, close your eyes, and place the tongue at the back of the mouth

3.  First Scan: Capture CBCT of ONLY the maxilla denture with the x-ray markers

– Position appliance on a foam block

– Orientate teeth occlusal DOWN

CBCT General Settings: 6cm – 8cm, 0.3 – 0.4 Voxel

4.  Second Scan: Capture CBCT of the patient WEARING maxilla denture with x-ray markers.

Vital Anatomy to be captured:

– Superior: Mid Sinus / below orbit

– Inferior: Capture 1-3 mm of mandible dentition

CBCT General Settings: Maxl 6cm – 8cm, 0.3 – 0.4 Voxel

5.  When scanning a patient following Dual Scan Protocol:

– Review the scan carefully to ensure there is no “Black Air Space” between the denture and the soft tissue of the patient

Rejected Scan  

Accepted Scan  

More information on exporting the DICOM files form you specific CBCT machine can be found under the “Exporting DICOM” section.