A Force Reproduction Analysis of Two Recording Sensors of a Computerized Occlusal Analysis System

The purpose of this study was to measure the performance of a new design of occlusal sensor, the high definition (HD) sensor, and directly compare this sensor to the previous design. This new HD sensor design has increased active recording area by 33%, and decreased inactive recording area by 50% as...

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Bibliographic Details
Published in:Cranio 2006-01, Vol.24 (1), p.15-24
Main Authors: Kerstein, Robert B., Lowe, Mark, Harty, Mike, Radke, John
Format: Article
Language:English
Subjects:
Bite Force
Dental Articulators
Dental Models
Dentistry
Electronics - instrumentation
Epoxy Resins
Equipment Design
Humans
Jaw Relation Record - instrumentation
Reproducibility of Results
Signal Processing, Computer-Assisted - instrumentation
Transducers, Pressure
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Summary:The purpose of this study was to measure the performance of a new design of occlusal sensor, the high definition (HD) sensor, and directly compare this sensor to the previous design. This new HD sensor design has increased active recording area by 33%, and decreased inactive recording area by 50% as compared to the previous design (G3). This was accomplished by determining the force reproduction variability for repeated occlusal closures on the same sensor for a sampling of sensors from both designs. Thirty (30) G3 and 30 HD sensors were consistently positioned and loaded 24 times between articulated epoxy casts by a Pneumatic Occlusal Force Simulator. Their force reproduction consistency was measured as an electronic voltage drop across six occlusal contacts that were consistently located on all sensors. The force variability of the two sensor designs was determined by comparing the consistency of the voltage drops across the six occlusal contacts. An analysis of variance was employed to determine the variability of force reproduction over multiple closures across six occlusal contact regions. For five of the six contacts, the G3 sensor mean variances, were significantly larger (p
ISSN:0886-9634
2151-0903
DOI:10.1179/crn.2006.004