Methods of designing and fabricating customized dental care for particular users

A method of making personalized toothbrush devices for a plurality of users, the method comprising:

• for each of a plurality of users:
• obtaining, for a respective user of the plurality of users, an electronic 3-D dental model of the respective user's mouth;
• determining, based on the electronic 3-D dental model of the respective user's mouth, a configuration for a mouthpiece of a personalized toothbrush device;
• 3-D printing the mouthpiece of the personalized toothbrush device, the mouthpiece of the personalized toothbrush device including a top cleaning tray, a bottom cleaning tray, and a set of cleaning elements, wherein each of the top cleaning tray, the bottom cleaning tray, and the set of cleaning elements are each customized based at least in part on the electronic 3-D dental model of the respective user's mouth;
• and
• wherein each personalized toothbrush device 3-D printed for each respective user of the plurality of users is different from every other user's personalized toothbrush device, and
• wherein the mouthpiece of the personalized toothbrush device is 3-D printed as a single, integral unit.