Nasal cavity width changes following slow and rapid miniscrew-supported maxillary expansion

2021 ◽  
Vol 60 (1) ◽  
pp. 1-9
Author(s):  
Yomna Yacout ◽  
Essam Abdallah ◽  
Nadia El-Harouni
2021 ◽  
Vol 4 (5) ◽  
pp. 22934-22949
Author(s):  
Larissa da Silva Araújo ◽  
Rafaela Caires Santos ◽  
Daniele Assis Souza ◽  
Janaina Cristina Gomes ◽  
Roberto Mario Amaral Lima Filho ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Brandon J. Seubert ◽  
Laurence Gaalaas ◽  
Brent E. Larson ◽  
Thorsten Grünheid

AbstractThis study aimed at quantifying the annual transverse growth of the maxilla using skeletal landmarks in three different regions on cone-beam computed tomography (CBCT) scans. CBCT scans taken before and after orthodontic treatment of 100 child and adolescent patients (50 male, 50 female) without maxillary transverse deficiencies were used to determine the transverse linear distances between the greater palatine foramina (GPFd), the lateral walls of the nasal cavity (NCd), and the infraorbital foramina (IOFd). We found that all distances increased significantly with growth in both genders (p < 0.001). The overall average annual change was 0.5 mm for GPFd, 0.3 mm for NCd, and 0.7 mm for IOFd. Males generally had greater annual changes than females for GPFd and IOFd, but not NCd. There were weak, statistically not significant (p > 0.05) correlations between patient age and the annual changes in GPFd, NCd, and IOFd. These results suggest that the positions of the greater palatine foramina, the lateral walls of the nasal cavity, and the infraorbital foramina change consistently with maxillary transverse growth. Clinicians can use the growth rates as population averages to more confidently estimate the amount of skeletal transverse deficiency or evaluate the long-term effects of maxillary expansion treatment.


2012 ◽  
Vol 17 (4) ◽  
pp. 129-133 ◽  
Author(s):  
Carla Enoki Itikawa ◽  
Fabiana Cardoso Pereira Valera ◽  
Mírian Aiko Nakane Matsumoto ◽  
Wilma Terezinha Anselmo Lima

OBJECTIVE: To assess the effects of rapid maxillary expansion on facial morphology and on nasal cavity dimensions of mouth breathing children by acoustic rhinometry and computed rhinomanometry. METHODS: Cohort; 29 mouth breathing children with posterior crossbite were evaluated. Orthodontic and otorhinolaryngologic documentation were performed at three different times, i.e., before expansion, immediately after and 90 days following expansion. RESULTS: The expansion was accompanied by an increase of the maxillary and nasal bone transversal width. However, there were no significant differences in relation to mucosal area of the nose. Acoustic rhinometry showed no difference in the minimal cross-sectional area at the level of the valve and inferior turbinate between the periods analyzed, although rhinomanometry showed a statistically significant reduction in nasal resistance right after expansion, but were similar to pre-treatment values 90 days after expansion. CONCLUSION: The maxillary expansion increased the maxilla and nasal bony area, but was inefficient to increase the nasal mucosal area, and may lessen the nasal resistance, although there was no difference in nasal geometry. Significance: Nasal bony expansion is followed by a mucosal compensation.


2006 ◽  
Vol 70 (7) ◽  
pp. 1225-1230 ◽  
Author(s):  
Carla Enoki ◽  
Fabiana Cardoso Pereira Valera ◽  
Fernanda Campos Rosetti Lessa ◽  
Ana Maria Elias ◽  
Mirian Aiko N. Matsumoto ◽  
...  

2018 ◽  
Vol 88 (4) ◽  
pp. 435-441 ◽  
Author(s):  
Soo-Yeon Kim ◽  
Young-Chel Park ◽  
Kee-Joon Lee ◽  
Andreas Lintermann ◽  
Sang-Sun Han ◽  
...  

ABSTRACT Objectives: To evaluate changes in the volume and cross-sectional area of the nasal airway before and 1 year after nonsurgical miniscrew-assisted rapid maxillary expansion (MARME) in young adults. Materials and Methods: Fourteen patients (mean age, 22.7 years; 10 women, four men) with a transverse discrepancy who underwent cone beam computed tomography before (T0), immediately after (T1), and 1 year after (T2) expansion were retrospectively included in this study. The volume of the nasal cavity and nasopharynx and the cross-sectional area of the anterior, middle, and posterior segments of the nasal airway were measured and compared among the three timepoints using paired t-tests. Results: The volume of the nasal cavity showed a significant increase at T1 and T2 (P &lt; .05), while that of the nasopharynx increased only at T2 (P &lt; .05). The anterior and middle cross-sectional areas significantly increased at T1 and T2 (P &lt; .05), while the posterior cross-sectional area showed no significant change throughout the observation period (P &gt; .05). Conclusions: The results demonstrate that the volume and cross-sectional area of the nasal cavity increased after MARME and were maintained at 1 year after expansion. Therefore, MARME may be helpful in expanding the nasal airway.


2008 ◽  
Vol 134 (3) ◽  
pp. 370-382 ◽  
Author(s):  
Nanci Lara Oliveira De Felippe ◽  
Adriana C. Da Silveira ◽  
Grace Viana ◽  
Budi Kusnoto ◽  
Bonnie Smith ◽  
...  

2017 ◽  
Vol 88 (2) ◽  
pp. 202-207 ◽  
Author(s):  
Fundagül Bilgiç ◽  
İbrahim Damlar ◽  
Özgür Sürmelioğlu ◽  
Özlem Akıncı Sözer ◽  
Ufuk Tatlı

ABSTRACT Objective: To evaluate the effects of rapid maxillary expansion (RME) on the vocal quality, maxillary central incisors, midpalatal suture, and nasal cavity in patients with maxillary crossbite. Materials and Methods: Coronal CT scans of 30 subjects (14 boys, 16 girls; mean age, 12.01 ± 0.75) were taken before RME (T0), and at the end of the expansion phase (T1). Voice samples of all patients were recorded with a high-quality condenser microphone (RODE NT2-A) on a desktop computer at T0 and T1. Statistical analyses were performed using a paired-sample t-test. The degree of association between the changes in the voice parameters and nasal width was assessed with Pearson's correlation. Results: RME treatment produced a significant increase in the transverse dimensions of the midpalatal suture and nasal cavity between T0 and T1 (P &lt; .05). The maximum F0 and jitter (%) results were shown to decrease statistically significantly from T0 to T1 (P &lt; .001 and P = .042, respectively). Between T0 and T1, shimmer (%) and shimmer (dB) exhibited statistically significant increases (P = .037 and P = .019, respectively). Conclusions: After RME therapy, voice quality differences were found to be associated with increases in nasal width.


Author(s):  
Maria E. Tapia ◽  
Ursula Brethauer ◽  
Patricio Ulloa ◽  
Andrea Carcamo ◽  
Felipe Culaciati

Background: Rapid maxillary expansion is a common treatment for posterior cross-bites that has also shown to improve nasal breathing.Methods: Thirteen oral breather patients with posterior cross-bite were studied. Treatment consisted in rapid maxillary expansion with a fully bonded appliance including a bite-block and a hyrax expansion screw. Before and after treatment, CT scans and active anterior rhinomanometry were performed to each patient. Data was analyzed with the non-parametric Wilcoxon statistical test and correlation between palatal expansion and increase of airflow in each patient was assessed.Results: The CT scan showed that transversal dimensions were significantly increased (P<0.001) in most areas after treatment, considering the right and left side separately. Rhinomanometry also showed statistical differences (P<0.001) in all parameters studied when compared before and after treatment. Positive correlation was observed between palatal expansion and increase of airflow.Conclusions: All patients improved oral breathing habit clinically and there is also statistical evidence that the nasal cavity increased its transversal dimensions, measured by CT scan and that patients increased their airflow through the nasal cavity, measured by rhinomanometry.


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