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Pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement with counterclockwise rotation for class II anterior open bite malocclusions

Identifieur interne : 003080 ( Main/Exploration ); précédent : 003079; suivant : 003081

Pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement with counterclockwise rotation for class II anterior open bite malocclusions

Auteurs : Fb Prado [Brésil] ; Ac Rossi [Brésil] ; Ar Freire [Brésil] ; Fc Groppo [Brésil] ; M. De Moraes [Brésil] ; Phf Caria [Brésil]

Source :

Dentomaxillofacial Radiology [ 0250-832X ] ; 2012.

RBID : PMC:3520379

Abstract

Objectives

The purpose of this study was to cephalometrically evaluate the pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion.

Methods

The study included 49 patients (98 lateral teleradiographs; 36 females and 13 males) who were analysed in the pre-operative (1 week before surgery) and post-operative (6 months after surgery) periods. In each lateral teleradiography, the dimensions of the inferior and superior pharyngeal airway space, TB-PhW1 [the point between the posterior aspect of the tongue to the dorsal pharyngeal wall (oropharynx) (TB) and the point on the dorsal pharyngeal wall closest to TB (PhW1)] and UP-PhW2 [and the point between the posterior aspect of the soft palate to the dorsal pharyngeal wall (nasopharynx) (UP) (PhW2)] measurements were evaluated, as well as the dimensions of the frontal and sphenoid sinuses. The differences between the two operative times were evaluated by Student's t-test.

Results

All measurements showed excellent reproducibility for the intraclass correlation coefficient (ICC > 0.9; p < 0.0001). There was an increase in the measurements TB-PhW1 and UP-PhW2 and a decrease in the dimensions of the frontal and sphenoid sinuses after orthognathic surgery.

Conclusions

The morphology of the superior and inferior pharyngeal airway space and frontal and sphenoid sinuses changes after 6 months of maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3520379

DOI: 10.1259/dmfr/22419253
PubMed: 22116128
PubMed Central: 3520379

Affiliations:

Le document en format XML

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<front><div type="abstract" xml:lang="en"><sec><title>Objectives</title>
<p>The purpose of this study was to cephalometrically evaluate the pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion.</p>
</sec>
<sec><title>Methods</title>
<p>The study included 49 patients (98 lateral teleradiographs; 36 females and 13 males) who were analysed in the pre-operative (1 week before surgery) and post-operative (6 months after surgery) periods. In each lateral teleradiography, the dimensions of the inferior and superior pharyngeal airway space, TB-PhW1 [the point between the posterior aspect of the tongue to the dorsal pharyngeal wall (oropharynx) (TB) and the point on the dorsal pharyngeal wall closest to TB (PhW1)] and UP-PhW2 [and the point between the posterior aspect of the soft palate to the dorsal pharyngeal wall (nasopharynx) (UP) (PhW2)] measurements were evaluated, as well as the dimensions of the frontal and sphenoid sinuses. The differences between the two operative times were evaluated by Student's <italic>t</italic>
-test.</p>
</sec>
<sec><title>Results</title>
<p>All measurements showed excellent reproducibility for the intraclass correlation coefficient (ICC > 0.9; <italic>p</italic>
 < 0.0001). There was an increase in the measurements TB-PhW1 and UP-PhW2 and a decrease in the dimensions of the frontal and sphenoid sinuses after orthognathic surgery.</p>
</sec>
<sec><title>Conclusions</title>
<p>The morphology of the superior and inferior pharyngeal airway space and frontal and sphenoid sinuses changes after 6 months of maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion.</p>
</sec>
</div>
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<name sortKey="Caria, Phf" sort="Caria, Phf" uniqKey="Caria P" first="Phf" last="Caria">Phf Caria</name>
<name sortKey="De Moraes, M" sort="De Moraes, M" uniqKey="De Moraes M" first="M" last="De Moraes">M. De Moraes</name>
<name sortKey="Freire, Ar" sort="Freire, Ar" uniqKey="Freire A" first="Ar" last="Freire">Ar Freire</name>
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Pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement with counterclockwise rotation for class II anterior open bite malocclusions

Pharyngeal airway space and frontal and sphenoid sinus changes after maxillomandibular advancement with counterclockwise rotation for class II anterior open bite malocclusions

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Abstract

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