Orthodontic measurements and nasal respiratory function after surgically assisted rapid maxillary expansion: an acoustic rhinometry and rhinomanometry study |
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| Authors: | Zambon C E Ceccheti M M Utumi E R Pinna F R Machado G G Peres M P S M Voegels R L |
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| Affiliation: | 1. Department of Oral and Maxillofacial Surgery, Clinics Hospital, University of São Paulo, São Paulo, Brazil;2. Brazilian Air Force Hospital, São Paulo, Brazil;3. Department of Otorhinolaryngology, Clinics Hospital, University of São Paulo, São Paulo, Brazil;1. Stanford University Sleep Medicine Division, Redwood City, CA, USA;2. Pediatric Sleep Medicine and Cranio-Facial Center, Chang Gung Memorial Hospital and University, Taoyuan, Taiwan;3. University of California San Francisco Dental School, San Francisco, CA, USA;4. Clinique Oto-Laryngologique Bordeaux, France;1. Field of Developmental Medicine, Health Research Course, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8544, Japan;2. Division of Pediatric Dentistry, Department of Oral Health Science, Course of Oral Life Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan;3. Kanomi Orthodontic Office, Himeji, Hyogo, Japan;1. Department of Otolaryngology, Singapore General Hospital, 20 College Road, Singapore 169856, Singapore;2. Department of Otolaryngology, Sengkang General Hospital, 110 Sengkang East Way, Singapore 544886, Singapore;1. Resident in Oral and Maxillofacial Surgery, University of Pennsylvania Health System, Perelman Center for Advanced Medicine, Philadelphia, PA;2. Dental Student, University of Pennsylvania School of Dental Medicine, Robert Schattner Center, Philadelphia, PA;3. Charles Harrison Frazier Professor and Chairman of Department of Neurosurgery, University of Pennsylvania Health System, Perelman Center for Advanced Medicine, Philadelphia, PA;4. Chief of Oral and Maxillofacial Surgery, Philadelphia Veterans Affairs Medical Center, University of Pennsylvania Presbyterian Medical Center, Philadelphia, PA |
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| Abstract: | The present study sought to assess nasal respiratory function in adult patients with maxillary constriction who underwent surgically assisted rapid maxillary expansion (SARME) and to determine correlations between orthodontic measurements and changes in nasal area, volume, resistance, and airflow. Twenty-seven patients were assessed by acoustic rhinometry, rhinomanometry, orthodontic measurements, and use of a visual analogue scale at three time points: before surgery; after activation of a preoperatively applied palatal expander; and 4 months post-SARME. Results showed a statistically significant increase (p<0.001) in all orthodontic measurements. The overall area of the nasal cavity increased after surgery (p<0.036). The mean volume increased between assessments, but not significantly. Expiratory and inspiratory flow increased over time (p<0.001). Airway resistance decreased between assessments (p<0.004). Subjective analysis of the feeling of breathing exclusively through the nose increased significantly from one point in time to the next (p<0.05). There was a statistical correlation between increased arch perimeter and decreased airway resistance. Respiratory flow was the only variable to behave differently between sides. The authors conclude that the SARME procedure produces major changes in the oral and nasal cavity; when combined, these changes improve patients' quality of breathing. |
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