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Article: Dental changes and space gained as a result of early treatment of pseudo-Class III malocclusion.

TitleDental changes and space gained as a result of early treatment of pseudo-Class III malocclusion.
Authors
Issue Date2000
Citation
Australian Orthodontic Journal, 2000, v. 16 n. 1, p. 40-52 How to Cite?
AbstractThis study was designed to investigate the dental changes and the space gained following early treatment of pseudo-Class III malocclusion, using a simple fixed appliance. Twenty-one consecutively treated patients who had a pseudo-Class III malocclusion comprised the treated group. Fifteen untreated control subjects were used as matched controls for the three-year follow-up after completion of treatment. Lateral cephalograms and study models were analysed for the treated, the control and the follow-up group. The arithmetic mean and standard deviation were calculated for each variable, and paired t-tests were performed to assess the effects of treatment on the treated group. The Mann-Whitney test was performed to evaluate the difference between the follow-up group and the control group. Anterior crossbites and mandibular displacements were eliminated after the treatment. On average, the space gained as a result of the treatment was 4.7 mm in the upper arch (p < 0.001 degree). Comparison of the space available as a result of early treatment with the space required for alignment of posterior segments in the upper arch of the untreated control group indicated that there was enough space for the eruption of the canines and premolars as a result of early treatment; whereas, lack of space was evident in the untreated controls. In conclusion, a pseudo-Class III malocclusion, proclination of the upper incisors and/or retroclination of the lower incisors contributed to the correction of anterior crossbite and the elimination of mandibular displacement. Proclination of the upper incisors, utilisation of leeway space, and arch-width increase provided the space required for eruption of the premolars and canines.
Persistent Identifierhttp://hdl.handle.net/10722/154100
ISSN
2015 Impact Factor: 0.451
2015 SCImago Journal Rankings: 0.317

 

DC FieldValueLanguage
dc.contributor.authorGu, Yen_US
dc.contributor.authorRabie, ABen_US
dc.date.accessioned2012-08-08T08:23:16Z-
dc.date.available2012-08-08T08:23:16Z-
dc.date.issued2000en_US
dc.identifier.citationAustralian Orthodontic Journal, 2000, v. 16 n. 1, p. 40-52en_US
dc.identifier.issn0587-3908en_US
dc.identifier.urihttp://hdl.handle.net/10722/154100-
dc.description.abstractThis study was designed to investigate the dental changes and the space gained following early treatment of pseudo-Class III malocclusion, using a simple fixed appliance. Twenty-one consecutively treated patients who had a pseudo-Class III malocclusion comprised the treated group. Fifteen untreated control subjects were used as matched controls for the three-year follow-up after completion of treatment. Lateral cephalograms and study models were analysed for the treated, the control and the follow-up group. The arithmetic mean and standard deviation were calculated for each variable, and paired t-tests were performed to assess the effects of treatment on the treated group. The Mann-Whitney test was performed to evaluate the difference between the follow-up group and the control group. Anterior crossbites and mandibular displacements were eliminated after the treatment. On average, the space gained as a result of the treatment was 4.7 mm in the upper arch (p < 0.001 degree). Comparison of the space available as a result of early treatment with the space required for alignment of posterior segments in the upper arch of the untreated control group indicated that there was enough space for the eruption of the canines and premolars as a result of early treatment; whereas, lack of space was evident in the untreated controls. In conclusion, a pseudo-Class III malocclusion, proclination of the upper incisors and/or retroclination of the lower incisors contributed to the correction of anterior crossbite and the elimination of mandibular displacement. Proclination of the upper incisors, utilisation of leeway space, and arch-width increase provided the space required for eruption of the premolars and canines.en_US
dc.languageengen_US
dc.relation.ispartofAustralian orthodontic journalen_US
dc.subject.meshBicuspid - Physiologyen_US
dc.subject.meshCase-Control Studiesen_US
dc.subject.meshCephalometryen_US
dc.subject.meshChilden_US
dc.subject.meshCuspid - Physiologyen_US
dc.subject.meshDental Arch - Pathologyen_US
dc.subject.meshDental Modelsen_US
dc.subject.meshFemaleen_US
dc.subject.meshFollow-Up Studiesen_US
dc.subject.meshHumansen_US
dc.subject.meshIncisor - Pathologyen_US
dc.subject.meshMaleen_US
dc.subject.meshMalocclusion, Angle Class Iii - Pathology - Therapyen_US
dc.subject.meshMandible - Pathologyen_US
dc.subject.meshMaxilla - Pathologyen_US
dc.subject.meshOdontometryen_US
dc.subject.meshOrthodontic Appliancesen_US
dc.subject.meshStatistics, Nonparametricen_US
dc.subject.meshTime Factorsen_US
dc.subject.meshTooth - Pathologyen_US
dc.subject.meshTooth Eruption - Physiologyen_US
dc.subject.meshTooth Movement - Instrumentationen_US
dc.titleDental changes and space gained as a result of early treatment of pseudo-Class III malocclusion.en_US
dc.typeArticleen_US
dc.identifier.emailRabie, AB:rabie@hku.hken_US
dc.identifier.authorityRabie, AB=rp00029en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid11201959-
dc.identifier.scopuseid_2-s2.0-0034157145en_US
dc.identifier.hkuros48477-
dc.identifier.volume16en_US
dc.identifier.issue1en_US
dc.identifier.spage40en_US
dc.identifier.epage52en_US
dc.publisher.placeAustraliaen_US
dc.identifier.scopusauthoridGu, Y=7403046201en_US
dc.identifier.scopusauthoridRabie, AB=7007172734en_US

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