In 1952 the Swedish orthopaedic surgeon, Per-Ingvar Brånemark, was interested in studying bone healing and regeneration. During his research time at Lund University he adopted the Cambridge designed "rabbit ear chamber" for use in the rabbit femur. Following the study, he attempted to retrieve these expensive chambers from the rabbits and found that he was unable to remove them. Brånemark observed that bone had grown into such close proximity with the titanium that it effectively adhered to the metal and the birth of current day implants was seen.
Dr. Ryne Johnson, prosthodontist and managing partner of Newton Wellesley Dental Partners, whom many consider a pioneer in using computer in implant dentistry, has developed a synergistic technique to remove many of the early pitfalls seen in implant placement and dental prosthetics. He has been performing implant reconstructions since 1989 with the assistance of computers. His current approach is outlined below:
1. Initial examination and work up to simulate the final design of the dental prosthesis (think architectural plans when building a home). 2. Create a three dimensional representation of this plan (either a denture or some other means to position teeth for the patient & doctor to evaluate form, aesthetics, phonetics 3. Convert this into a X-ray scanning guide (to wear during the CT scan) or to scan the mouth with CAD/CAM appliance 4. Merge the digital data into software that creates a 3-D image of the newly designed plan overlaid onto the existing bone contours 5. Evaluate bone and other anatomical structures related to planned implant placement 6. Determine implant angulation, length, diameter, position, etc 7. Create a surgical placement jig 8. Place implants using placement jig 9. Place dental prosthesis (often at same visit as implant placement)
Dr. Johnson uses this approach on most of his dental implant cases and states, “I can’t imagine why more clinicians are not following this protocol as it has diminished our complications and often allows our patients to go home with a ‘tooth’ the same day implants are placed. Why accept less?
Original content: www.wikipedia.com Artwork: www.perfectdentalimplant.com, www.wikipedia, www.texasimplant.com