biostudies-literatureUnknown49(8)Laurence-Chasen JDNIDCR NIH HHSNIA NIH HHSNational Institute of Dental and Craniofacial ResearchNational Science Foundation of Sri LankaNational Institute on AgingNational Science Foundation<h4>Background</h4>Individuals with impaired oral sensation report difficulty chewing, but little is known about the underlying changes to tongue and jaw kinematics. Methodological challenges impede the measurement of 3D tongue movement and its relationship to the gape cycle.<h4>Objective</h4>The aim of this study was to quantify the impact of loss of oral somatosensation on feeding performance, 3D tongue kinematics and tongue-jaw coordination.<h4>Methodology</h4>XROMM (X-ray Reconstruction of Moving Morphology) was used to quantify 3D tongue and jaw kinematics during feeding in three rhesus macaques (Macaca mulatta) before and after an oral tactile nerve block. Feeding performance was measured using feeding sequence duration, number of manipulation cycles and swallow frequency. CoordinatiJournal of oral rehabilitation806-816https://www.ebi.ac.uk/biostudies/studies/S-EPMC9540871biostudies-literatureLoss of oral sensation impairs feeding performance and consistency of tongue-jaw coordination.PMC9540871Laurence-Chasen JDRoss CFArce-McShane FIHatsopoulos NGfalseLoss of oral sensation impairs feeding performance and consistency of tongue-jaw coordination.<h4>Background</h4>Individuals with impaired oral sensation report difficulty chewing, but little is known about the underlying changes to tongue and jaw kinematics. Methodological challenges impede the measurement of 3D tongue movement and its relationship to the gape cycle.<h4>Objective</h4>The aim of this study was to quantify the impact of loss of oral somatosensation on feeding performance, 3D tongue kinematics and tongue-jaw coordination.<h4>Methodology</h4>XROMM (X-ray Reconstruction of Moving Morphology) was used to quantify 3D tongue and jaw kinematics during feeding in three rhesus macaques (Macaca mulatta) before and after an oral tactile nerve block. Feeding performance was measured using feeding sequence duration, number of manipulation cycles and swallow frequency. Coordinati2022-01-01T00:00:00Z2022 Aug2025-04-19T04:47:26.286Z2025-04-19T04:47:26.286ZS-EPMC95408713551425810.1111/joor.13336