Methods and systems for orthodontic treatment planning

A non-transitory computer-readable storage medium comprising instructions that, when executed by one or more processors of a device, cause the device to perform operations comprising:

• displaying, on a user interface, a three-dimensional (3D) digital model of a dentition based on a dental treatment plan, wherein the 3D digital model includes a surface of at least one tooth with a first attachment;
• receiving, through the user interface, a user input to locate a second attachment on the surface of the at least one tooth;
• determining, by the one or more processors, an interference between the first attachment and the second attachment;
• generating an updated dental treatment plan based on the interference between the first attachment and the second attachment;
• and
• displaying an updated 3D digital model based on the updated dental treatment plan.

A system for designing a dental treatment plan, the system comprising:

• a user interface configured to display graphical data and receive user input;
• one or more processors;
• and
• a memory coupled to the one or more processors, the memory configured to store computer-program instructions that, when executed by the one or more processors cause the system to implement a method comprising:
• displaying, on a user interface, a three-dimensional (3D) digital model of a dentition based on a patient's dental treatment plan;
• receiving, through the user interface, a user input selecting a location for an occlusal feature on a tooth of the 3D digital model;
• determining, by the one or more processors, whether the occlusal feature can be implemented at the selected location;
• generating an updated dental treatment plan based at the selected location of the occlusal feature;
• and
• displaying an updated 3D digital model based on the updated dental treatment plan.