CBCT Scan Computer Guided Surgery
Up until recently, dentists placing dental implants had to rely on 2-dimensional x-ray views. Although these images provided a good estimate of bone height, they did not give any indication of bone volume – to estimate volume, the dentist was thus guided by look/feel and experience and compromised implant placement was not uncommon.
Now, detailed 3D analysis of the jawbone can be interpreted by powerful computer software and this allows the ‘virtual placement’ of the dental implant on a 3-D computer model. Computers allow for more precise implant placement and take the risks out of the procedure. They also help visualise any important structures within the jaw [e.g. nerves and blood vessels and sinus areas].
Computer guided surgery allows for more accurate implant placement, often in a key-hole fashion, and this leads to increased post-operative comfort. Computers also allow for the modelling and production of the restoration before the implant is even placed.
It is fast becoming standard procedure to 3D scan in implant cases and for many patients, this is the safest and most precise way of placing a dental implant.
Computer guided implant placement and restoration production involves:
- An initial CBCT scan of the jaw
- A precise scan of the teeth using an intra-oral scanner
- The CBCT scan and intra-oral scan are then digitally stitched together
- Using the data obtained from above, the implant is first ‘virtually’ placed
- Virtual placement allows the production of a surgical guided stent and a provisional restoration prior to the implant even being placed
- Using the surgical guide, the implant is then placed in the patient’s jaw
- The pre-made provisional restoration is then added to the implant