Quality inspection system using three-dimensional imaging scan of dental mold

A system, comprising:

• one or more processors;
• and
• a memory coupled to the one or more processors and including program code that, when executed by the one or more processors, causes the system to:
• receive a dentition model representing a dentition of a patient at a stage of orthodontic treatment;
• scan a mold fabricated based on the dentition model to generate a pre-use mold model representing an outer surface of the mold;
• compare the pre-use mold model and the dentition model;
• identify one or more differences between the pre-use mold model and the dentition model based on the comparison;
• fail the mold if at least one of the one or more differences exceeds a first threshold;
• and
• pass the mold if none of the one or more differences exceeds the first threshold.

A computer program product comprising:

• a non-transitory computer-readable storage medium;
• and
• program code stored on the non-transitory computer-readable storage medium that, when executed by one or more processors, causes the one or more processors to:
• receive a dentition model representing a dentition of a patient at a stage of orthodontic treatment;
• scan a mold fabricated based on the dentition model to generate a pre-use mold model representing an outer surface of the mold;
• compare the pre-use mold model and the dentition model;
• identify one or more differences between the pre-use mold model and the dentition model based on the comparison;
• fail the mold if at least one of the one or more differences exceeds a first threshold;
• and
• pass the mold if none of the one or more differences exceeds the first threshold.