The present invention is directed to a bite tray having fiducial markers for head scan registration and method of use. The bite tray is held by a patient is his teeth while the scan of his head and the fiducial markers is made by x-ray, CT, or MRI and the scan is entered into a computer to register the scan to the fiducial markers. Instrument optical markers are placed on a dental instrument and it is observed by a camera and the observation is entered in to the computer to register the patient optical markers to the patient. The tip of the dental instrument is then touched to one of the fiducial markers making the location of the tip and the fiducial marker the same. The computer then registers the scan to the instrument and the patient. The bite tray is then removed from the mouth allowing access by the dentist to the teeth. The camera follows the movement of the instrument optical markers to the patient optical markers to create a display of the instrument and tip on the scan.本發明係關於具有頭部掃描定位用基準標記之咬合牙托及其使用方法。使一病患將該咬合牙托咬在其牙齒之間,以接受X光、CT或MRI對其頭部及該等基準標記之掃描,之後掃描影像輸入至電腦以將該掃描對位於該基準標記。儀器光學標記設置於一牙科儀器上,由攝影機觀察其移動,且觀察結果係輸入至該電腦以將該病患光學標記對位於該病患。以該牙科儀器尖端碰觸該等基準標記之一,使該尖端之位置與該基準標記相同。電腦接著將該掃描對位於該儀器及該病患。之後將咬合牙托自口中取出,以便牙醫接近處理牙齒。該攝影機跟隨該儀器光學標記對該病患光學標記之移動,以於該掃描影像上建立該儀器及尖端之顯示影像。10‧‧‧咬合牙托12‧‧‧底板14‧‧‧可定型化合物16‧‧‧內側牙周脊20‧‧‧把手22、24、26及28‧‧‧基準標記固定座32、34、36及38‧‧‧基準標記40‧‧‧呈圓筒狀之孔44‧‧‧縱長軸12‧‧‧平面底板
