Scanning long span edentulous is a very likely culprit with rendering dimensionally accurate models because to the software and camera, the geometric shapes are too identical across the ridge.
The more we can disrupt the symmetry with large, short, non-reflective and asymmetric scanbodies, the more likely we are to keep the models accurate. This video presentation address some of those issues and how to overcome them.
here is a list of why the Medit Artificial Intelligent Implant Suprastructure Identification System is significantly more advantageous over all other cadcam systems.
With Medit’s Crown Fit function, you can see exactly how much cement is required to seat the restoration and how well it is adapted to the tibase.
A cool new feature in the upcoming Medit i500 is the opportunity to capture deep areas that are out of the camera’s focal length (-1.5 to 17mm). This usually happens in complex implant cases, or in this case where the anterior four teeth were traumatized.
With very little tooth structure remaining, a custom post and core was required to restored the dentition with a very guarded prognosis. After root canal therapy, the chamber was accessed and a conventional impression was taken.
Separate from this, a clinical digital impression was taken of the temporaries, the opposing and the buccal bite. The margins of the preps were protected and the chamber was deleted / cropped. As you can see, there are hollow areas in the depth of the chambers where the topography was outside the focal length. Scanning the impression as a negative gives easy access to the depths of the chamber, allowing you to form a model that is well outside the imagine range of the neighboring teeth.
The software allows you to image intra-orally and then allows you to fill in the voids by imaging the impression instead.
