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ePaper created 2018-02-26, 10:53:32 | version 1.38.0
B10 I N DUST RY Implant Tribune U.S. Edition | March 2018 A revolutionary paradigm shift in dynamic surgical navigation By George Mandelaris, DDS, MS A revolution in surgical guidance is afoot. A new dynamic naviga- tion technology called “Trace and Place” (TaP for short), was developed by ClaroNav and will soon be- come available with its Navident system. I have had the opportunity to try the tech- nology in a range of cases, and I am very impressed. Here’s a brief description of my experience. Registration is accomplished using any recent CT scan of the jaw by selecting on- screen and then tracing three of the pa- tient’s teeth or other structures (such as braces or abutments). The process is done in the chair, immediately before surgery. No stent or guide needs to be prepared, and the entire registration process is typi- cally accomplished in about three min- utes. AD In the rare case something goes wrong during registration and an accuracy check fails to demonstrate the accuracy expect- ed, the registration can be immediately repeated by tracing the same or other structures. Once the jaw is registered with its CT scan, on-screen guidance of the drill posi- tion and orientation is provided. The jaw surface is fully exposed, just like with free-hand drilling. Because the jaw often moves during the operation, the system continuously tracks the position of the jaw and adjusts the reg- istration to keep the jaw and its on-screen image in accurate alignment. Tracking the upper jaw is accomplished using a special head-tracking frame, which is not affected by movements of the lower jaw or changes in facial expressions. gets, to a single tooth using a light-cured composite. The motions of the drill are tracked using another plastic part marked with optical targets. Tracking the lower jaw is accomplished by connecting a lightweight plastic “jaw tracker” part, marked with optical tar- After only a short experience with Trace and Place technology in my prac- tice, I have come to believe that it is a real Photo/ Provided George AG Mandelaris, DDS MS tipping point for dynamic navigation guidance. It has streamlined and simpli- fied the workflow in both the diagnostic and surgical phases to allow state-of-the- art technology to be an everyday com- ponent of my surgical implant practice. I can’t imagine going back!