Three-dimensional upper-airway assessment in patients with bronchial asthma

Author:

Bandeira Alexandre Marcos1,Oltramari-Navarro Paula Vanessa Pedron2,de Lima Navarro Ricardo3,de Castro Ferreira Conti Ana Cláudia2,de Almeida Marcio Rodrigues2,Fernandes Karen Barros Parron4

Affiliation:

1. Former graduate student, Orthodontic Department, University of North Parana (UNOPAR), Londrina, Brazil

2. Full Professor, Orthodontic Department, University of North Parana (UNOPAR), Londrina, Brazil

3. Postgraduate Researcher, Department of Dentistry, Area of Oral and Maxillofacial Surgery, State University of Maringá, Maringá, Brazil

4. Full Professor, Health and Biological Sciences Research Center, University of North Parana (UNOPAR), Londrina, Brazil

Abstract

ABSTRACT Objective: To assess the upper airway (UAW) total volume (TV), the nasopharyngeal narrowest area (NNA), and the oropharyngeal narrowest area (ONA) in patients with bronchial asthma. Materials and Methods: The sample consisted of 52 patients divided into two groups: the control group (n  =  26; mean age  =  14.85 years), which consisted of patients not suffering from bronchial asthma; and the asthmatic group (n  =  26; mean age  =  16.65 years), which consisted of patients with bronchial asthma. To assess UAW-related variables (TV, NNA, and ONA), cone-beam computed tomography scans of the patients were evaluated by means of the Dolphin Imaging software 11.5. All measurements were repeated after 30 days, and the results were submitted to reliability tests by means of the intraclass correlation coefficient and the Bland-Altman agreement test. The values obtained for TV, NNA, and ONA for each group were compared by using Student's t-test for independent samples (5% level of significance). Results: The results showed that the groups were matched concerning gender, cephalometric characteristics, and type of malocclusion. The asthmatic group had significantly lower TV (P  =  .01) and ONA (P  =  .007) than the control group. However, no significant difference was observed for NNA between the groups (P  =  .54). Conclusions: Bronchial asthma may be a determining factor for the reduction of UAW dimensions, as patients with asthma showed significant reductions in TV and ONA dimensions.

Publisher

The Angle Orthodontist (EH Angle Education & Research Foundation)

Subject

Orthodontics

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