File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Cephalometric study of the upper airway in surgically corrected class III skeletal deformity.

TitleCephalometric study of the upper airway in surgically corrected class III skeletal deformity.
Authors
Issue Date2002
Citation
The International Journal Of Adult Orthodontics And Orthognathic Surgery, 2002, v. 17 n. 3, p. 180-190 How to Cite?
AbstractChanges in the upper airway after surgical correction of Class III skeletal dentofacial deformity were investigated by measurement of the cephalometric radiographs of 70 Class III subjects before surgery and 6 months after surgery. Comparison of the results with those of a normal group of 74 subjects without deformity or surgery was also carried out. Gender dimorphism in measurements and type of surgery performed were taken into account. Results showed that postoperatively the soft palate and hyoid bone were posteriorly displaced in men, the oropharyngeal, hypopharyngeal, and minimal airway depth were reduced, but in women, the minimal depth was not reduced. In the mandibular setback group, men showed posterior movement of the tongue base, with decrease in minimal airway depth. In the maxillary advancement group, nasopharyngeal depth increased in both genders. In the bimaxillary surgery group, the soft palate moved posteriorly and the tongue occupied a larger proportion of the airway in both genders. The hyoid was displaced backwards in women, while men showed a decrease in both oropharyngeal and minimal airway depth. In comparison with normal subjects, postoperative measurements indicated that the soft palate was reduced in length, thickness, and area, and the base of the tongue was more posterior. Minimal pharyngeal depth was reduced in both genders. After mandibular setback, the tongue base was more posterior and the hypopharyngeal depth was reduced. The bimaxillary surgery group also demonstrated a more posterior tongue base but without reduction of the hypopharyngeal depth. The mandibular setback group should be most at risk of obstructive sleep apnea, but compensatory changes in soft palate morphology may explain the low occurrence in practice.
Persistent Identifierhttp://hdl.handle.net/10722/154209
ISSN
2005 SCImago Journal Rankings: 0.427

 

DC FieldValueLanguage
dc.contributor.authorSamman, Nen_US
dc.contributor.authorTang, SSen_US
dc.contributor.authorXia, Jen_US
dc.date.accessioned2012-08-08T08:23:53Z-
dc.date.available2012-08-08T08:23:53Z-
dc.date.issued2002en_US
dc.identifier.citationThe International Journal Of Adult Orthodontics And Orthognathic Surgery, 2002, v. 17 n. 3, p. 180-190en_US
dc.identifier.issn0742-1931en_US
dc.identifier.urihttp://hdl.handle.net/10722/154209-
dc.description.abstractChanges in the upper airway after surgical correction of Class III skeletal dentofacial deformity were investigated by measurement of the cephalometric radiographs of 70 Class III subjects before surgery and 6 months after surgery. Comparison of the results with those of a normal group of 74 subjects without deformity or surgery was also carried out. Gender dimorphism in measurements and type of surgery performed were taken into account. Results showed that postoperatively the soft palate and hyoid bone were posteriorly displaced in men, the oropharyngeal, hypopharyngeal, and minimal airway depth were reduced, but in women, the minimal depth was not reduced. In the mandibular setback group, men showed posterior movement of the tongue base, with decrease in minimal airway depth. In the maxillary advancement group, nasopharyngeal depth increased in both genders. In the bimaxillary surgery group, the soft palate moved posteriorly and the tongue occupied a larger proportion of the airway in both genders. The hyoid was displaced backwards in women, while men showed a decrease in both oropharyngeal and minimal airway depth. In comparison with normal subjects, postoperative measurements indicated that the soft palate was reduced in length, thickness, and area, and the base of the tongue was more posterior. Minimal pharyngeal depth was reduced in both genders. After mandibular setback, the tongue base was more posterior and the hypopharyngeal depth was reduced. The bimaxillary surgery group also demonstrated a more posterior tongue base but without reduction of the hypopharyngeal depth. The mandibular setback group should be most at risk of obstructive sleep apnea, but compensatory changes in soft palate morphology may explain the low occurrence in practice.en_US
dc.languageengen_US
dc.relation.ispartofThe International journal of adult orthodontics and orthognathic surgeryen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshCephalometryen_US
dc.subject.meshFemaleen_US
dc.subject.meshFollow-Up Studiesen_US
dc.subject.meshHumansen_US
dc.subject.meshHyoid Bone - Pathologyen_US
dc.subject.meshHypopharynx - Pathologyen_US
dc.subject.meshMaleen_US
dc.subject.meshMalocclusion, Angle Class Iii - Surgeryen_US
dc.subject.meshMandible - Surgeryen_US
dc.subject.meshMatched-Pair Analysisen_US
dc.subject.meshMaxilla - Surgeryen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshNasopharynx - Pathologyen_US
dc.subject.meshOropharynx - Pathologyen_US
dc.subject.meshPalate, Soft - Pathologyen_US
dc.subject.meshPharynx - Pathologyen_US
dc.subject.meshReproducibility Of Resultsen_US
dc.subject.meshRetrospective Studiesen_US
dc.subject.meshRisk Factorsen_US
dc.subject.meshSex Factorsen_US
dc.subject.meshStatistics As Topicen_US
dc.subject.meshTongue - Pathologyen_US
dc.titleCephalometric study of the upper airway in surgically corrected class III skeletal deformity.en_US
dc.typeArticleen_US
dc.identifier.emailSamman, N:nsamman@hkucc.hku.hken_US
dc.identifier.authoritySamman, N=rp00021en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid12353936-
dc.identifier.scopuseid_2-s2.0-0036730021en_US
dc.identifier.hkuros82086-
dc.identifier.volume17en_US
dc.identifier.issue3en_US
dc.identifier.spage180en_US
dc.identifier.epage190en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSamman, N=7006413627en_US
dc.identifier.scopusauthoridTang, SS=7403436404en_US
dc.identifier.scopusauthoridXia, J=7402325468en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats