Methods and systems for dental procedures

A system for digitally aligning a patient's teeth with a reference portion of the patient, the system comprising:

• a device comprising:
• an occlusal portion for securing the device in a mouth of a patient during an optical scan of exposed teeth of the patient;
• and
• a non-occlusal portion separate from the occlusal portion, the non-occlusal portion having a coded pattern integrated therein for aligning scanned 3D model data of the exposed teeth of the patient, the non-occlusal portion and the occlusal portion being arranged in order to capture the coded pattern in the scanned 3D model data of the exposed teeth;
• a scanner for acquiring a first image of at least a portion of the patient's teeth and a second image of the coded pattern and the at least the portion of the patient's teeth;
• and
• a computer comprising storage media comprising instructions that, when executed, cause the computer to determine a spatial relationship between at least some of the patient's teeth and the reference portion associated with the patient by calculating a first spatial relationship between the device and the at least the portion of the patient's teeth and a second spatial relationship between the device and the reference portion.