3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study

Previous studies demonstrated that while the mandible assumes its resting position in space, antagonistic muscles should assume minimal muscle activity within a spatial range. This zone of mandibular rest has been mapped using physiologic parameters of muscle activity and incisal spatial kinematics....

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Main Author: Todd Shewman
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Case Reports in Medicine
Online Access:http://dx.doi.org/10.1155/2013/698397
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author Todd Shewman
author_facet Todd Shewman
author_sort Todd Shewman
collection DOAJ
description Previous studies demonstrated that while the mandible assumes its resting position in space, antagonistic muscles should assume minimal muscle activity within a spatial range. This zone of mandibular rest has been mapped using physiologic parameters of muscle activity and incisal spatial kinematics. This case study expands on previous research by monitoring incisal and posterior jaw position and includes lateral pterygoid muscle activity, thus allowing for determining the spatial range including additional relevant coordinates and muscle activity. Four positions were evaluated: a maximum physiologic open position, a maximum physiologic closed position, physiologic rest position, and maximum physiologic protrusion position. Within the physiologic zone of rest formed by these 4 positions, the vertical and anterior borders of the envelope of function may be documented for the incisal and posterior mandible in true 3-dimensional fashion to assist the clinician in determining a physiologic interocclusal freeway space and vertical dimension of occlusion. Advantages and limitations are discussed.
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spelling doaj-art-b7ddaa749e0548c5b4eac8557d50924e2025-08-20T02:19:18ZengWileyCase Reports in Medicine1687-96271687-96352013-01-01201310.1155/2013/6983976983973-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case StudyTodd Shewman0Noraxon USA, 3630 Ashridge Street, Columbus, OH 43219, USAPrevious studies demonstrated that while the mandible assumes its resting position in space, antagonistic muscles should assume minimal muscle activity within a spatial range. This zone of mandibular rest has been mapped using physiologic parameters of muscle activity and incisal spatial kinematics. This case study expands on previous research by monitoring incisal and posterior jaw position and includes lateral pterygoid muscle activity, thus allowing for determining the spatial range including additional relevant coordinates and muscle activity. Four positions were evaluated: a maximum physiologic open position, a maximum physiologic closed position, physiologic rest position, and maximum physiologic protrusion position. Within the physiologic zone of rest formed by these 4 positions, the vertical and anterior borders of the envelope of function may be documented for the incisal and posterior mandible in true 3-dimensional fashion to assist the clinician in determining a physiologic interocclusal freeway space and vertical dimension of occlusion. Advantages and limitations are discussed.http://dx.doi.org/10.1155/2013/698397
spellingShingle Todd Shewman
3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study
Case Reports in Medicine
title 3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study
title_full 3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study
title_fullStr 3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study
title_full_unstemmed 3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study
title_short 3-Dimensional Physiologic Postural Range of the Mandible: A Computerized-Assisted Technique—A Case Study
title_sort 3 dimensional physiologic postural range of the mandible a computerized assisted technique a case study
url http://dx.doi.org/10.1155/2013/698397
work_keys_str_mv AT toddshewman 3dimensionalphysiologicposturalrangeofthemandibleacomputerizedassistedtechniqueacasestudy