Intraoral scanner and smart toothbrush for oral health

A method for using intraoral scan data to improve oral health, the method comprising:

• receiving first scan data of a patient's dentition at a first time;
• receiving second scan data of a patient's dentition at a second time;
• receiving toothbrushing tracking data of a patient's toothbrushing for a plurality of toothbrushing sessions between the first time and the second time;
• identifying from the first scan data and the second scan data types and locations of oral health changes of the patient's dentition between the first scan data and the second scan data;
• and
• providing toothbrushing guidance based on the type and location of the oral health changes.

A system for using intraoral scan data to guide patient toothbrushing, the system comprising:

• an electronic toothbrush including:
• a toothbrush head having bristles and being configured to oscillate;
• one or more sensors configured to record sensor data for determining the position and orientation of the toothbrush relative to the patient's dentition;
• a first processor configured to control the operation of the electronic toothbrush;
• instructions stored in memory that when executed by a second processor cause the second processor to:
• receive and store brushing guidance, a 3D model of a patient's dentition, and the sensor data;
• determine, during toothbrushing activity, a location of the toothbrush head with respect to the patient's dentition based on the sensor data and the 3D model;
• correlate the toothbrush location with the brushing guidance;
• and
• send an instructions to the electronic toothbrush to adjust an operation of the toothbrush based on the correlation of the toothbrush location with the brushing guidance.