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Conference Paper: Advantages of early treatment of pseudo Class III
Title | Advantages of early treatment of pseudo Class III |
---|---|
Authors | |
Issue Date | 2003 |
Publisher | Oxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/ |
Citation | The 79th Congress of Euoropean Orthodontic Society, Prague, Czech Republic, 10–14 June 2003. In European Journal of Orthodontics, 2003, v. 25 n. 4, p. 438 Abstract no. 51 How to Cite? |
Abstract | AIM: To investigate the long-term outcome of early treatment of
pseudo Class III malocclusions, using a simple fixed appliance and to
compare it with untreated controls.
SUBJECTS AND METHOD: Twenty-one consecutively treated
pseudo Class III malocclusion patients with a mean age of 9.6 years.
Fifteen untreated pseudo Class III subjects in the permanent dentition
were used as controls. The subjects in the treated group were followed
for 5 years. Lateral cephalograms and study models were analysed for
the treated, the control and the follow-up group.
RESULTS: Anterior crossbites and mandibular displacement were
corrected after treatment and relapse was not observed during the
follow-up period. The angulations of the upper incisors to the maxillary
plane showed a mean increase of 9.5 degrees (P < 0.001), whereas the
angulation of the lower incisors to the mandibular plane showed a
decrease of 4.9 degrees (P < 0.001). A comparison of the space available
as a result of early treatment with space required for alignment
of teeth in the upper arch of the untreated group indicated that there
was sufficient 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.
CONCLUSIONS: Early treatment of pseudo Class III by proclination
of the upper incisors provides sufficient space for the eruption of the
buccal segments; erupting canines and premolars are guided into a Class I relationship after early correction of anterior mandibular
displacements |
Persistent Identifier | http://hdl.handle.net/10722/94176 |
ISSN | 2023 Impact Factor: 2.8 2023 SCImago Journal Rankings: 0.940 |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rabie, ABM | en_HK |
dc.contributor.author | Hagg, EUO | en_HK |
dc.contributor.author | Gu, Y | en_HK |
dc.date.accessioned | 2010-09-25T15:23:38Z | - |
dc.date.available | 2010-09-25T15:23:38Z | - |
dc.date.issued | 2003 | en_HK |
dc.identifier.citation | The 79th Congress of Euoropean Orthodontic Society, Prague, Czech Republic, 10–14 June 2003. In European Journal of Orthodontics, 2003, v. 25 n. 4, p. 438 Abstract no. 51 | en_HK |
dc.identifier.issn | 0141-5387 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/94176 | - |
dc.description.abstract | AIM: To investigate the long-term outcome of early treatment of pseudo Class III malocclusions, using a simple fixed appliance and to compare it with untreated controls. SUBJECTS AND METHOD: Twenty-one consecutively treated pseudo Class III malocclusion patients with a mean age of 9.6 years. Fifteen untreated pseudo Class III subjects in the permanent dentition were used as controls. The subjects in the treated group were followed for 5 years. Lateral cephalograms and study models were analysed for the treated, the control and the follow-up group. RESULTS: Anterior crossbites and mandibular displacement were corrected after treatment and relapse was not observed during the follow-up period. The angulations of the upper incisors to the maxillary plane showed a mean increase of 9.5 degrees (P < 0.001), whereas the angulation of the lower incisors to the mandibular plane showed a decrease of 4.9 degrees (P < 0.001). A comparison of the space available as a result of early treatment with space required for alignment of teeth in the upper arch of the untreated group indicated that there was sufficient 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. CONCLUSIONS: Early treatment of pseudo Class III by proclination of the upper incisors provides sufficient space for the eruption of the buccal segments; erupting canines and premolars are guided into a Class I relationship after early correction of anterior mandibular displacements | - |
dc.language | eng | en_HK |
dc.publisher | Oxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/ | en_HK |
dc.relation.ispartof | European Journal of Orthodontics | en_HK |
dc.rights | European Journal of Orthodontics. Copyright © Oxford University Press. | en_HK |
dc.title | Advantages of early treatment of pseudo Class III | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0141-5387&volume=25&issue=5&spage=438&epage=&date=2003&atitle=Advantages+of+early+treatment+of+pseudo+Class+III | en_HK |
dc.identifier.email | Rabie, ABM: rabie@hkusua.hku.hk | en_HK |
dc.identifier.email | Hagg, EUO: euohagg@hkusua.hku.hk | en_HK |
dc.identifier.authority | Rabie, ABM=rp00029 | en_HK |
dc.identifier.authority | Hagg, EUO=rp00020 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1093/ejo/25.4.425 | - |
dc.identifier.hkuros | 110882 | en_HK |
dc.identifier.volume | 25 | en_HK |
dc.identifier.issue | 5 | en_HK |
dc.identifier.spage | 438 | en_HK |
dc.identifier.issnl | 0141-5387 | - |