Threshold for Detection of Incisal Forces Is Increased by Jaw Movement
Current knowledge regarding the sensitivity of the teeth to forces is based on psychophysical experiments that measured touch detection thresholds under static jaw conditions. It is not known whether jaw movements alter the perception of forces applied to the teeth, but, based on limb movement studi...
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Veröffentlicht in: | Journal of dental research 2010-04, Vol.89 (4), p.395-399 |
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description | Current knowledge regarding the sensitivity of the teeth to forces is based on psychophysical experiments that measured touch detection thresholds under static jaw conditions. It is not known whether jaw movements alter the perception of forces applied to the teeth, but, based on limb movement studies, it is hypothesized that the perception of mechanoreceptor outputs will be downwardly modulated by jaw movements. We predicted that, compared with static jaw conditions, rhythmic jaw movements would be associated with significantly higher psychophysical thresholds for the detection of incisally applied forces. In eight participants, mechanical pulses were delivered to an incisor during static jaw holding or during cyclic jaw opening and closing. Analogous to findings in human limbs, the psychophysical salience of periodontal mechanoreceptor feedback was downwardly modulated by physiologically relevant movements; detection thresholds for mechanical pulses applied to a central incisor were significantly higher during jaw-closing movements than during static jaw positioning. |
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It is not known whether jaw movements alter the perception of forces applied to the teeth, but, based on limb movement studies, it is hypothesized that the perception of mechanoreceptor outputs will be downwardly modulated by jaw movements. We predicted that, compared with static jaw conditions, rhythmic jaw movements would be associated with significantly higher psychophysical thresholds for the detection of incisally applied forces. In eight participants, mechanical pulses were delivered to an incisor during static jaw holding or during cyclic jaw opening and closing. 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Analogous to findings in human limbs, the psychophysical salience of periodontal mechanoreceptor feedback was downwardly modulated by physiologically relevant movements; detection thresholds for mechanical pulses applied to a central incisor were significantly higher during jaw-closing movements than during static jaw positioning.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Bite Force</subject><subject>Dental Stress Analysis</subject><subject>Dentistry</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>Mandible - physiology</subject><subject>Mastication</subject><subject>Mechanoreceptors - physiology</subject><subject>Movement</subject><subject>Periodontal Ligament - cytology</subject><subject>Sensory Thresholds - physiology</subject><subject>Touch Perception - physiology</subject><subject>Young Adult</subject><issn>0022-0345</issn><issn>1544-0591</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kM1LAzEQxYMotn7cPUnw4ml18t09SrVaqXip5yXJzmplu6nJVul_b5dWhYKngXm_92Z4hJwxuGLMmGsAzkFIxUBowYDtkT5TUmagcrZP-p2cdXqPHKX0DsByPhCHpMeBA0gGfTKavkVMb6EuaRUivcUWfTsLDQ0VHTd-lmxNRyF6THScuk1Em7CkbkUf7Rd9Cp84x6Y9IQeVrROebucxeRndTYcP2eT5fjy8mWRe5LzNEKB0UhmnnfNaOWMEV65Sua74gDkrmDQcjELLVSW9dhV3vNQy98pxrXNxTC43uYsYPpaY2mI-Sx7r2jYYlqkwQhjGmeJr8mKHfA_L2KyfKzjkUgujujjYQD6GlCJWxSLO5jauCgZF13Cx2_Dacr7NXbo5lr-Gn0rXQLYBkn3Fv6P_Bn4DYep_yQ</recordid><startdate>201004</startdate><enddate>201004</enddate><creator>Sowman, P.F</creator><creator>Brinkworth, R.S.A.</creator><creator>Türker, K.S.</creator><general>SAGE Publications</general><general>SAGE PUBLICATIONS, INC</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RQ</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>S0X</scope><scope>U9A</scope><scope>7X8</scope></search><sort><creationdate>201004</creationdate><title>Threshold for Detection of Incisal Forces Is Increased by Jaw Movement</title><author>Sowman, P.F ; 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It is not known whether jaw movements alter the perception of forces applied to the teeth, but, based on limb movement studies, it is hypothesized that the perception of mechanoreceptor outputs will be downwardly modulated by jaw movements. We predicted that, compared with static jaw conditions, rhythmic jaw movements would be associated with significantly higher psychophysical thresholds for the detection of incisally applied forces. In eight participants, mechanical pulses were delivered to an incisor during static jaw holding or during cyclic jaw opening and closing. Analogous to findings in human limbs, the psychophysical salience of periodontal mechanoreceptor feedback was downwardly modulated by physiologically relevant movements; detection thresholds for mechanical pulses applied to a central incisor were significantly higher during jaw-closing movements than during static jaw positioning.</abstract><cop>United States</cop><pub>SAGE Publications</pub><pmid>20200410</pmid><doi>10.1177/0022034510363101</doi><tpages>5</tpages></addata></record> |
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subjects | Adolescent Adult Bite Force Dental Stress Analysis Dentistry Female Humans Male Mandible - physiology Mastication Mechanoreceptors - physiology Movement Periodontal Ligament - cytology Sensory Thresholds - physiology Touch Perception - physiology Young Adult |
title | Threshold for Detection of Incisal Forces Is Increased by Jaw Movement |
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