{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T02:52:00Z","timestamp":1772160720943,"version":"3.50.1"},"reference-count":23,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,11,20]],"date-time":"2020-11-20T00:00:00Z","timestamp":1605830400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The envelope of motion is a diagrammatic representation of the mandibular border movements. Classically, those movements are carried out eccentrically; starting from the position of maximal intercuspation, the mandible describes an excursion movement until reaching maximal mouth opening. Reverse movements would describe a different path, but up to now concentric development of mandibular border movements has not been considered. Literature states that beyond mandibular border movements limits, no movement is possible. Therefore, it is of great interest to compare both paths\u2014both envelopes of motion\u2014and define the actual limits of mandibular movement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The aim of this study was to compare the geometric characteristics of mandibular border movements carried out eccentrically and concentrically by healthy subjects.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Sixteen individuals aged between 18 and 27\u00a0years, molar class I and with no temporomandibular disorders, participated in the study. Eccentric and concentric mandibular movements were recorded using a 3D electromagnetic articulograph. Data were processed with computational scripts developed in MATLAB. Maximum mouth opening, trajectories, displacement ranges, polygon areas and chewing cycle area\/ mandibular border movements area ratio were analysed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The frontal plane showed significant differences in all the parameters evaluated. Higher values were registered in the concentric area of the border movement envelope (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a0.008) and in the trajectories on both sides. Statistical differences were observed in polygon areas (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a0.006) in the sagittal plane and right ranges (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0=\u00a0.046) in the horizontal plane.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Concentric mandibular movements revealed significant differences in three\u2010dimensional trajectories in the frontal plane.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/joor.13124","type":"journal-article","created":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T11:39:50Z","timestamp":1604576390000},"page":"384-391","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Mandibular border movements: The two envelopes of motion"],"prefix":"10.1111","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3160-9682","authenticated-orcid":false,"given":"Priscila","family":"Chuhuaicura","sequence":"first","affiliation":[{"name":"Dental School Research Centre in Dental Sciences (CICO) Universidad de La Frontera  Temuco Chile"},{"name":"Department of Integral Adults Dentistry Dental School Universidad de La Frontera  Temuco Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda Florencia","family":"Lezcano","sequence":"additional","affiliation":[{"name":"Dental School Research Centre in Dental Sciences (CICO) Universidad de La Frontera  Temuco Chile"},{"name":"Department of Integral Adults Dentistry Dental School Universidad de La Frontera  Temuco Chile"},{"name":"Laboratorio de Cibern\u00e9tica Departamento de Bioingenier\u00eda Facultad de Ingenier\u00eda Universidad Nacional de Entre R\u00edos  Entre R\u00edos Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9945-9185","authenticated-orcid":false,"given":"Fernando Jos\u00e9","family":"Dias","sequence":"additional","affiliation":[{"name":"Dental School Research Centre in Dental Sciences (CICO) Universidad de La Frontera  Temuco Chile"},{"name":"Department of Integral Adults Dentistry Dental School Universidad de La Frontera  Temuco Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aler Daniel","family":"Fuentes","sequence":"additional","affiliation":[{"name":"Institute for Research in Dental Sciences Faculty of Dentistry Universidad de Chile  Santiago Chile"},{"name":"Oral Physiology Laboratory Faculty of Medicine Biomedical Sciences Institute Universidad de Chile  Santiago Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1107-9426","authenticated-orcid":false,"given":"Alain","family":"Arias","sequence":"additional","affiliation":[{"name":"Dental School Research Centre in Dental Sciences (CICO) Universidad de La Frontera  Temuco Chile"},{"name":"Department of Integral Adults Dentistry Dental School Universidad de La Frontera  Temuco Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5895-024X","authenticated-orcid":false,"given":"Ram\u00f3n","family":"Fuentes","sequence":"additional","affiliation":[{"name":"Dental School Research Centre in Dental Sciences (CICO) Universidad de La Frontera  Temuco Chile"},{"name":"Department of Integral Adults Dentistry Dental School Universidad de La Frontera  Temuco 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