If the CBCT dicom file is not captured properly, it will be difficult for the planner to match the dicom and stl files. Therefore, it is important to follow these guidelines when taking the CBCT scan.
Position

Inadequate implant area coverage may result from improper patient positioning or errors in CBCT parameter settings. Therefore, it is crucial to position the patient correctly.
Movement Error

The final CBCT scan might show shaking or trembling because the patient moved too much while being scanned or due to issues with the sensor used for scanning.