Bone supported surgical guides
In the above case all the standing teeth are for extraction and the RX prescription form requests four implants in the anterior section for overdenture type restoration.
As is common to these case types, the bone anatomy is usually uneven due to the resorption caused by longterm periodontal disease.
It is advisable to carry out bone leveling in order to improve the contour of the ridge crest and the seating and maintenance of the future implant supported denture.
The bone leveling will combine both bone reduction & bone augmentation.
In the image above it is easy to see for example, the reduction required at implant site 34 and the bone augmentation required at implant site 43.
The use of computer guided surgery facilitates analysis of the future bone and tissue level, evaluation of the emergence of the implants in relationship to the future prosthesis and ensures that all the implants are parallel.
Parallel implants will offer more prosthetic options by enabling the use of individual attachments (Locators, anchors or ball attachments) or to facilitate simple laboratory techniques for the manufacture of a cad/cam bar type system.
In the above case it is easy to see the many benefits of 3d digital analysis.
Consultant
7 年Awesome ! What software is used to prepare And how can we confirm the digital reduction and surgical reduction match each other Please throw some light on this