Objective: To evaluate changes in airway volumes and respiratory performance in patients undergoing rapid maxillary expansion and determine whether any correlations exist between the morphological and respiratory functional modifications induced by rapid maxillary expansion and pretreatment airway stenosis. Materials and methods: Fifteen patients (11 females and 4 males; mean age, 7.5 ± 0.3 years) were enrolled in the study. Each patient underwent cone beam computed tomography and polysomnography examination before rapid maxillary expansion and after the removal of the maxillary expander 12 months later. The airway regions were segmented and the volumes were computed. Results: The upper, middle, and lower airway volumes were significantly increased 2305 mm3, 1144 mm3, and 1915 mm3, respectively. Similarly, oxygen saturation was increased (+5.3%) and the apnea/hypopnea index was improved (24.2 events). All the observed modifications were statistically significant (P < .05). Baseline middle and lower airway volume showed a significant negative correlation with the oxygen saturation modification. Conclusions: The results of this study showed that when rapid maxillary expansion is performed in subjects having posterior crossbite, oxygen saturation is improved. The improvement is greater in subjects having more reduced middle and lower airway volumes.

Airway compartments volume and oxygen saturation changes after rapid maxillary expansion: A longitudinal correlation study

Zecca, Piero Antonio;CAPRIOGLIO, ALBERTO
2015-01-01

Abstract

Objective: To evaluate changes in airway volumes and respiratory performance in patients undergoing rapid maxillary expansion and determine whether any correlations exist between the morphological and respiratory functional modifications induced by rapid maxillary expansion and pretreatment airway stenosis. Materials and methods: Fifteen patients (11 females and 4 males; mean age, 7.5 ± 0.3 years) were enrolled in the study. Each patient underwent cone beam computed tomography and polysomnography examination before rapid maxillary expansion and after the removal of the maxillary expander 12 months later. The airway regions were segmented and the volumes were computed. Results: The upper, middle, and lower airway volumes were significantly increased 2305 mm3, 1144 mm3, and 1915 mm3, respectively. Similarly, oxygen saturation was increased (+5.3%) and the apnea/hypopnea index was improved (24.2 events). All the observed modifications were statistically significant (P < .05). Baseline middle and lower airway volume showed a significant negative correlation with the oxygen saturation modification. Conclusions: The results of this study showed that when rapid maxillary expansion is performed in subjects having posterior crossbite, oxygen saturation is improved. The improvement is greater in subjects having more reduced middle and lower airway volumes.
2015
http://www.angle.org/doi/pdf/10.2319/072014-504.1
Airway; Computed tomography; Maxillary expansion; Oxygen saturation; Polysomnography; Orthodontics
Fastuca, Rosamaria; Perinetti, Giuseppe; Zecca, Piero Antonio; Nucera, Riccardo; Caprioglio, Alberto
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11383/2057400
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 26
  • Scopus 58
  • ???jsp.display-item.citation.isi??? 51
social impact