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Updated: Jul 18, 2025

Precision Measurements and Parametric Models of Vertebral Endplates

Precision Measurements and Parametric Models of Vertebral Endplates

Published on: September 17, 2019

Making clinical sense of 3-dimensional metrology software programs.

Gary R Goldstein¹

¹Professor Emeritus, Department of Prosthodontics, New York University College of Dentistry, New York, NY.

The Journal of Prosthetic Dentistry

|August 27, 2023

Summary

This summary is machine-generated.

Three-dimensional (3D) metrology software aids manufacturing quality control. For prosthodontics, 3D color maps are most effective for interpreting clinical data from 3D scanners, surpassing basic statistics like RMS.

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Area of Science:

Dental Technology
Metrology
Manufacturing Quality Control

Background:

Three-dimensional (3D) metrology software is increasingly used in dentistry for data analysis.
Ensuring clinical significance of data from 3D scanners is a growing concern.
Common software programs require careful data interpretation for prosthodontic applications.

Purpose of the Study:

To present a rationale for interpreting 3D metrology software data in dentistry.
To review requirements for trueness, precision, and tolerance in metrology.
To identify the most effective method for determining clinical significance in prosthodontic studies.

Main Methods:

Review of data from a commonly used 3D metrology software program.
Analysis of statistical approaches, including arithmetic average and root mean square (RMS).
Contact with Oqton Tech Support regarding Geomagic software.

Main Results:

Arithmetic average and RMS do not indicate the amount or direction of deviation.
Statistical methods can confirm deviation but lack specific directional and magnitude information.
The 3D color map is identified as the most efficacious method for clinical significance.

Conclusions:

Standard statistical measures like RMS are insufficient for detailed deviation analysis in prosthodontics.
The 3D color map provides a superior method for assessing clinical significance of 3D metrology data.
Effective interpretation of 3D metrology data is crucial for quality decisions in dentistry.