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Article: Dentoskeletal effects and "effective" temporomandibular joint, maxilla and chin changes in good and bad responders to van Beek activator treatment

TitleDentoskeletal effects and "effective" temporomandibular joint, maxilla and chin changes in good and bad responders to van Beek activator treatment
Authors
Issue Date2007
PublisherE H Angle Education and Research Foundation, Inc. The Journal's web site is located at http://www.angle.org/
Citation
Angle Orthodontist, 2007, v. 77 n. 1, p. 64-72 How to Cite?
AbstractObjective: To assess possible differences in dentoskeletal effects and "effective" temporomandibular joint, maxilla, and chin changes between good and bad responders to van Beek activator treatment. Materials and Methods: The subject material consisted of 20 consecutive normodivergent male Class II division 1 patients treated with a van Beek activator. Because of insufficient cooperation, four patients were excluded. Lateral head films were taken 6 months before treatment, at start of treatment, and after 12 months of treatment. The patients were placed into a good responder group (successful, n = 8) and a bad responder group (unsuccessful, n = 8). An overjet reduction ≥4 mm was considered successful. Results: During the van Beek treatment period, the good responders showed a significantly larger improvement in overjet and molar relationship than did the bad responders. The good responders exhibited a significant posterior development of condylion, less anterior mandibular autorotation, retrusion of upper incisors, protrusion of lower incisors, distalization of maxillary molars, and a mesial movement of mandibular molars. No significant dental movements were seen in the bad responders. Conclusions: Although van Beek activator treatment affected the direction of condylar growth, as well as the direction of maxilla and chin changes, it can be concluded that skeletal changes did not contribute to the Class II correction. Instead, overjet reduction during van Beek activator treatment was found to be due to a favorable dental reaction. © 2006 by The EH Angle Education and Research Foundation, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/154435
ISSN
2015 Impact Factor: 1.579
2015 SCImago Journal Rankings: 1.254
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRuf, Sen_US
dc.contributor.authorBendeus, Men_US
dc.contributor.authorPancherz, Hen_US
dc.contributor.authorHägg, Uen_US
dc.date.accessioned2012-08-08T08:25:19Z-
dc.date.available2012-08-08T08:25:19Z-
dc.date.issued2007en_US
dc.identifier.citationAngle Orthodontist, 2007, v. 77 n. 1, p. 64-72en_US
dc.identifier.issn0003-3219en_US
dc.identifier.urihttp://hdl.handle.net/10722/154435-
dc.description.abstractObjective: To assess possible differences in dentoskeletal effects and "effective" temporomandibular joint, maxilla, and chin changes between good and bad responders to van Beek activator treatment. Materials and Methods: The subject material consisted of 20 consecutive normodivergent male Class II division 1 patients treated with a van Beek activator. Because of insufficient cooperation, four patients were excluded. Lateral head films were taken 6 months before treatment, at start of treatment, and after 12 months of treatment. The patients were placed into a good responder group (successful, n = 8) and a bad responder group (unsuccessful, n = 8). An overjet reduction ≥4 mm was considered successful. Results: During the van Beek treatment period, the good responders showed a significantly larger improvement in overjet and molar relationship than did the bad responders. The good responders exhibited a significant posterior development of condylion, less anterior mandibular autorotation, retrusion of upper incisors, protrusion of lower incisors, distalization of maxillary molars, and a mesial movement of mandibular molars. No significant dental movements were seen in the bad responders. Conclusions: Although van Beek activator treatment affected the direction of condylar growth, as well as the direction of maxilla and chin changes, it can be concluded that skeletal changes did not contribute to the Class II correction. Instead, overjet reduction during van Beek activator treatment was found to be due to a favorable dental reaction. © 2006 by The EH Angle Education and Research Foundation, Inc.en_US
dc.languageengen_US
dc.publisherE H Angle Education and Research Foundation, Inc. The Journal's web site is located at http://www.angle.org/en_US
dc.relation.ispartofAngle Orthodontisten_US
dc.subject.meshActivator Appliancesen_US
dc.subject.meshCephalometry - Statistics & Numerical Dataen_US
dc.subject.meshChilden_US
dc.subject.meshExtraoral Traction Appliancesen_US
dc.subject.meshHumansen_US
dc.subject.meshMaleen_US
dc.subject.meshMalocclusion, Angle Class Ii - Therapyen_US
dc.subject.meshMandibular Condyle - Growth & Developmenten_US
dc.subject.meshMaxillofacial Developmenten_US
dc.subject.meshOrthodontics, Interceptive - Instrumentationen_US
dc.subject.meshTemporomandibular Joint - Growth & Developmenten_US
dc.subject.meshTreatment Outcomeen_US
dc.titleDentoskeletal effects and "effective" temporomandibular joint, maxilla and chin changes in good and bad responders to van Beek activator treatmenten_US
dc.typeArticleen_US
dc.identifier.emailHägg, U:euohagg@hkusua.hku.hken_US
dc.identifier.authorityHägg, U=rp00020en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.2319/120605-425R.1en_US
dc.identifier.pmid17029547-
dc.identifier.scopuseid_2-s2.0-33846071585en_US
dc.identifier.hkuros140927-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846071585&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume77en_US
dc.identifier.issue1en_US
dc.identifier.spage64en_US
dc.identifier.epage72en_US
dc.identifier.isiWOS:000243451000010-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridRuf, S=7005192042en_US
dc.identifier.scopusauthoridBendeus, M=6506522941en_US
dc.identifier.scopusauthoridPancherz, H=7005373245en_US
dc.identifier.scopusauthoridHägg, U=7006790279en_US

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