ArticleSensors (Basel, Switzerland)2020
Accuracy and Reliability of AG501 Articulograph for Mandibular Movement Analysis: A Quantitative Descriptive Study.
Article in Sensors (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
8 citing papers in PubMed.
- Amplitude Distribution Characteristics of the Tongue, Lower Lip, and Jaw in Talkers With Dysarthria Due to Parkinson's Disease.Journal of speech, language, and hearing research : JSLHR · 2026Article
- Chewing Index: A Pilot Trial to Measure Masticatory Effort.Journal of clinical medicine · 2026Article
- 3-D Markerless Tracking of Speech Movements With Submillimeter Accuracy.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2026Article
- A Standardized Protocol for Analyzing Masticatory Muscle Activity at Different Levels of Mouth Opening Using Electromagnetic Articulography and Surface Electromyography: A Proof-of-Concept Study.Bioengineering (Basel, Switzerland) · 2025Article
- Tongue and jaw movement assessed by 3D motion capture during gum chewing.Frontiers in physiology · 2024Article
- Chewing Analysis by Means of Electromagnetic Articulography: Current Developments and New Possibilities.Sensors (Basel, Switzerland) · 2023Article
- A Novel Technique to Accurately Measure Mouth Opening Using 3D Electromagnetic Articulography.Bioengineering (Basel, Switzerland) · 2022Article
- Analytical Validation of a Webcam-Based Assessment of Speech Kinematics: Digital Biomarker Evaluation following the V3 Framework.Digital biomarkersArticle
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Electromagnetic articulography (EMA) have been mostly employed to study articulatory movements of speech. This technology appears to be very promising for studying mandibular movements within the field of dentistry. However, there are no studies reporting the validity of EMA for such purpose. The aim of this study is to assess accuracy and reliability of Carstens three-dimensional EMA AG501 in order to validate its use for mandibular movement analysis in dentistry. A set of tests was conducted attaching 16 sensors to a rotating rigid structure placed inside the measurement area. Another set of tests were conducted using a mouth anatomical model with human-like articulatory behaviour. A function of the EMA system called "head correction" was applied to normalize the data of every recording. The system reliability was higher at the centre of the measurement area and decreased toward the edges. Dispersion was greater for raw data than for normalized data. Bland-Altman analysis of agreement between the AG501 and a millimetre ruler used to measure the distance between the sensors revealed limits of agreement between 0.5 mm and -0.9 mm. The results suggest that EMA AG501 is valid for three-dimensional analysis of mandibular biomechanics allowing natural movements.
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Registered trials
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