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Digital and analog vertical dimension measurements: A clinical observational study
The International Journal of Prosthodontics
|February 22, 2021
Summary
Digital facial scanning accurately measures vertical dimensions, matching conventional methods. File format (OBJ or STL) does not impact accuracy, ensuring reliable dental measurements.
Area of Science:
- Dentistry
- Biometrics
- Digital Imaging
Background:
- Accurate measurement of vertical dimensions is crucial in dentistry.
- Digital technologies offer potential for improved measurement accuracy and efficiency.
Purpose of the Study:
- To compare rest vertical dimension (RVD) and occlusal vertical dimension (OVD) measurements using a facial scanner against conventional methods.
- To assess the impact of OBJ and STL file formats on the accuracy of digital measurements.
Main Methods:
- 30 participants had facial landmarks marked for RVD and OVD measurements.
- Measurements were taken conventionally (caliper) and digitally (facial scanner).
- Digital scans were exported in OBJ and STL formats for analysis.
Main Results:
- No significant differences were found between manual and digital measurements (OBJ or STL).
- High inter- and intra-operator reliability was observed (Cronbach's alpha > .994).
- Facial scan file format did not influence measurement accuracy.
Conclusions:
- Digital facial scanning provides accurate RVD and OVD measurements comparable to conventional techniques.
- The OBJ and STL file formats do not affect the accuracy of digital measurements.
- Facial scanning demonstrates high reliability for dental measurements.
