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Reliability and validity of two computerised occlusion analysis systems.

Zhe Zhao¹, Qing Wang¹, Xiuli Zheng¹

¹State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, PR China.

Journal of Dentistry

|January 26, 2022

Summary

This summary is machine-generated.

Two computerised occlusion analysis systems, the dental prescale occlusion analysis system (DPO) and virtual occlusion construction (VOC), demonstrate good reliability and validity for analyzing occlusal contacts.

Keywords:

Computerised Occlusal contact area Occlusion analysis Reliability Validity

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Area of Science:

Dental Science
Biomechanical Engineering
Digital Dentistry

Background:

Accurate analysis of occlusal contacts is crucial in dentistry.
Traditional methods like scanning articulating paper marks (SAP) have limitations.
Computerised systems offer potential for enhanced objectivity and convenience.

Purpose of the Study:

To evaluate the reliability and validity of two computerised occlusion analysis systems: dental prescale occlusion analysis system (DPO) and modified virtual occlusion construction method (VOC).
To compare these systems against a traditional method (SAP).

Main Methods:

In vitro study comparing SAP, DPO, and VOC.
Reliability assessed using coefficient of variation (CoV) on an articulator-mounted dentoform.
Validity evaluated using paired t-tests, regression, and Bland-Altman analysis on human dentition casts.

Main Results:

CoV values for occlusal contact areas: SAP (5.7%) < DPO (12.7%) < VOC (15.6%).
Significant differences found between SAP and DPO for entire and posterior teeth occlusal contact areas.
Good agreement observed between SAP and VOC via Bland-Altman analysis.

Conclusions:

Both DPO and VOC exhibit good reliability and validity.
These computerised systems are viable alternatives for occlusal contact analysis.
They offer a blend of convenience and digital objectivity for clinical use.