System and Method for Performing Quality Control of Manufactured Models
AssigneeJames R. Glidewell Dental Ceramics, Inc.
InventorsAbhishek Babasaheb Ajri, Vaheh Golestanian Nemagrdi, Marco Antonio Jokada, David Christopher Leeson
Life of this patent
Estimating the term…
Abstract
Disclosed herein are example embodiments of methods and systems for identifying manufacturing defects of a manufactured dentition model. One of the methods for performing quality control comprises: determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model.
Claims22
A method for performing quality control on a manufactured dentition model designed to test fitting of a dental prosthesis, the method comprising:
- determining whether the manufactured dentition model is a good or a defective product based on a statistical characteristic of a differences model, wherein the differences model comprises differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data, wherein the scanned 3D patient-dentition data comprises 3D data of a patient's dentition and the scanned 3D manufactured-dentition data comprises 3D data of the manufactured dentition model.
The method of claim 12, further comprises determining that the manufactured dentition model is too small or too large based on a distribution of differences that is negatively or positively biased as compared to a normal distribution.
The method of claim 12, wherein the manufactured dentition model comprises a 3D printed model.
A system for performing quality control on a manufactured dentition model, the system comprising:
- a quality control module configured to determine whether the manufactured dentition model is a good or a defective product based at least on a statistical characteristic of a differences model, wherein the differences model comprises differences between a scanned 3D patient-dentition data and a scanned 3D manufactured-dentition data, wherein the scanned 3D patient-dentition data comprises 3D data of a patient's dentition and the scanned 3D manufactured-dentition data comprises 3D data of the manufactured dentition model.
A method for performing quality control on a 3D-printed dentition model, the method comprising:
- obtaining a scanned 3D dentition data of dentition of a patient;
- printing, using a 3D printer, the 3D-printed dentition model based at least on the scanned 3D dentition data;
- generating a differences model by comparing the scanned 3D dentition data of the patient and a scanned 3D manufactured-dentition data generated by scanning the manufactured dentition model;
- and
- determining whether the 3D-printed dentition model is a good or a defective product based on a statistical characteristic of a differences model.
Dependencies are inferred from the claim text.