Systems and methods for segmenting dental scans

A dental treatment system comprising:

• one or more processors;
• 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 one or more processors to execute a computer-implemented method, the computer-implemented method comprising:
• receiving, in a computing device, scan data comprising a bone root scan of a patient's dentition;
• segmenting the scan data into individual teeth, wherein the individual teeth include crowns and tooth roots, wherein the segmenting comprises:
• forming a first segmented volume by segmenting a first portion of the scan data with a first segmentation process;
• forming a second segmented volume by segmenting a second portion of the scan data with a second segmentation process, wherein the first segmented volume has a lower resolution than the second segmented volumes;
• and
• forming segmenting scan data by merging the first segmented volume with the second segmented volume, the merging comprising:
• removing teeth labels from the first segmented volume;
• adjusting a resolution of the first segmented volume to be the same as a resolution of the second segmented volume;
• and
• replacing voxels in the first segmented volume with voxels from the second segmented volume;
• aligning the segmented scan data to a digital model of the patient's dentition;
• modifying the digital model of the patient's dentition to include the tooth roots from the aligned segmented scan data to form a modified digital model;
• and
• displaying or modifying a treatment plan using the modified digital model.