File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Scopus: eid_2-s2.0-0642371536
- PMID: 14580019
- WOS: WOS:000185748700011
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Muscular adaptation to gradual advancement of the mandible
Title | Muscular adaptation to gradual advancement of the mandible |
---|---|
Authors | |
Keywords | Class II EMG Functional appliance Herbst Prospective study |
Issue Date | 2003 |
Publisher | E H Angle Education and Research Foundation, Inc. The Journal's web site is located at http://www.angle.org/ |
Citation | Angle Orthodontist, 2003, v. 73 n. 5, p. 525-531 How to Cite? |
Abstract | Muscular activity of the superficial masseter muscle and anterior portion of the temporal muscle before, during, and after treatment, with gradual advancement of the mandible, was evaluated by assessing the average integrated electromyogram (EMG) with the mandible in retruded position (RP) and incisal edge-to-edge (EE) position on 23 consecutive subjects with skeletal Class II malocclusion. Toward the end of active treatment and follow-up, the RP position and EE position coincided. At any given registration, the EMG activity of the masseter muscle was at least twice (P < .001) that of the anterior portion of the temporal muscle. The EMG activity in RP for the anterior portion of the temporal muscle was not affected significantly, whereas the EMG activity at EE position decreased significantly (P < .05) during the initial treatment, but, thereafter, it increased continuously. The difference in EMG activity between six months of follow-up and pretreatment level reached statistical significance (P < .05). For the masseter muscle, the EMG activity at both RP and EE position was reduced about 20% during the initial treatment but returned to the pretreatment level during active treatment and exceeded pretreatment level by approximately 30% to 50% at two and six months of follow-up, respectively. In conclusion, it seemed that gradual advancement affected the anterior portion of the temporal muscle to a minor extent, whereas the effect on the masseter muscle was significant. |
Persistent Identifier | http://hdl.handle.net/10722/66727 |
ISSN | 2021 Impact Factor: 2.684 2020 SCImago Journal Rankings: 1.116 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Du, X | en_HK |
dc.contributor.author | Hägg, U | en_HK |
dc.date.accessioned | 2010-09-06T05:48:49Z | - |
dc.date.available | 2010-09-06T05:48:49Z | - |
dc.date.issued | 2003 | en_HK |
dc.identifier.citation | Angle Orthodontist, 2003, v. 73 n. 5, p. 525-531 | en_HK |
dc.identifier.issn | 0003-3219 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/66727 | - |
dc.description.abstract | Muscular activity of the superficial masseter muscle and anterior portion of the temporal muscle before, during, and after treatment, with gradual advancement of the mandible, was evaluated by assessing the average integrated electromyogram (EMG) with the mandible in retruded position (RP) and incisal edge-to-edge (EE) position on 23 consecutive subjects with skeletal Class II malocclusion. Toward the end of active treatment and follow-up, the RP position and EE position coincided. At any given registration, the EMG activity of the masseter muscle was at least twice (P < .001) that of the anterior portion of the temporal muscle. The EMG activity in RP for the anterior portion of the temporal muscle was not affected significantly, whereas the EMG activity at EE position decreased significantly (P < .05) during the initial treatment, but, thereafter, it increased continuously. The difference in EMG activity between six months of follow-up and pretreatment level reached statistical significance (P < .05). For the masseter muscle, the EMG activity at both RP and EE position was reduced about 20% during the initial treatment but returned to the pretreatment level during active treatment and exceeded pretreatment level by approximately 30% to 50% at two and six months of follow-up, respectively. In conclusion, it seemed that gradual advancement affected the anterior portion of the temporal muscle to a minor extent, whereas the effect on the masseter muscle was significant. | en_HK |
dc.language | eng | en_HK |
dc.publisher | E H Angle Education and Research Foundation, Inc. The Journal's web site is located at http://www.angle.org/ | en_HK |
dc.relation.ispartof | Angle Orthodontist | en_HK |
dc.subject | Class II | - |
dc.subject | EMG | - |
dc.subject | Functional appliance | - |
dc.subject | Herbst | - |
dc.subject | Prospective study | - |
dc.subject.mesh | Adaptation, Physiological | en_HK |
dc.subject.mesh | Adolescent | en_HK |
dc.subject.mesh | Bite Force | en_HK |
dc.subject.mesh | Dental Occlusion, Centric | en_HK |
dc.subject.mesh | Electromyography | en_HK |
dc.subject.mesh | Extraoral Traction Appliances | en_HK |
dc.subject.mesh | Female | en_HK |
dc.subject.mesh | Follow-Up Studies | en_HK |
dc.subject.mesh | Humans | en_HK |
dc.subject.mesh | Isometric Contraction - physiology | en_HK |
dc.subject.mesh | Male | en_HK |
dc.subject.mesh | Malocclusion, Angle Class II - therapy | en_HK |
dc.subject.mesh | Mandibular Advancement | en_HK |
dc.subject.mesh | Masseter Muscle - physiopathology | en_HK |
dc.subject.mesh | Orthodontic Appliances, Functional | en_HK |
dc.subject.mesh | Temporal Muscle - physiopathology | en_HK |
dc.title | Muscular adaptation to gradual advancement of the mandible | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-3219&volume=73 No5&spage=525&epage=531&date=2003&atitle=Muscular+Adaptation+to+Gradual+Advancement+of+the+Mandible+ | en_HK |
dc.identifier.email | Hägg, U:euohagg@hkusua.hku.hk | en_HK |
dc.identifier.authority | Hägg, U=rp00020 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.pmid | 14580019 | - |
dc.identifier.scopus | eid_2-s2.0-0642371536 | en_HK |
dc.identifier.hkuros | 85354 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0642371536&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 73 | en_HK |
dc.identifier.issue | 5 | en_HK |
dc.identifier.spage | 525 | en_HK |
dc.identifier.epage | 531 | en_HK |
dc.identifier.isi | WOS:000185748700011 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Du, X=7402551294 | en_HK |
dc.identifier.scopusauthorid | Hägg, U=7006790279 | en_HK |
dc.identifier.issnl | 0003-3219 | - |