Sometimes a CBCT scan can have an undesirable amount of artifact (noise) in it. Usually due to excessive metallic and zirconia restorations, this abundance of noise can actually prevent the merging of the patient’s model to the CBCT scan data. When this is the case, we do need to use a scanning appliance that provides markers below the plane of the restorations’, even though the patient has teeth.
Facilities / equipment needed:
1) Plaster model of the arch in question.
2) Optional: Model of opposing arch if articulator setup is to be used for the waxup.