Indian Journal of Sleep Medicine

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VOLUME 17 , ISSUE 1 ( January-March, 2022 ) > List of Articles

ORIGINAL RESEARCH

Upper Airway Post-planned Positioning of Maxillary Anterior Teeth: An Acoustic Pharyngometric Study

Pushkar Andhare, Sanjeev Datana, SS Agarwal, Sukhbir S Chopra, ID Roy

Citation Information : Andhare P, Datana S, Agarwal S, Chopra SS, Roy I. Upper Airway Post-planned Positioning of Maxillary Anterior Teeth: An Acoustic Pharyngometric Study. Indian Sleep Med 2022; 17 (1):5-9.

DOI: 10.5005/JP-JOURNALS-10069-0096

License: CC BY-NC 4.0

Published Online: 30-04-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Introduction: The effect of the retraction of anterior teeth on the upper airway as a response to orthodontic tooth movement is a less explored area in orthodontic literature, which requires deliberation in order to avoid undesired effects. The present study evaluates the change in upper airway dimensions post-intrusion and retraction of maxillary anterior teeth using Acoustic Pharyngometry, a noninvasive, chair-side diagnostic modality. Materials and methods: The upper airway dimensions (mean area and volume) changes were assessed during pretreatment and 3 months post-intrusion and retraction of anterior teeth in a sample of 30 patients by using Eccovision(R) Acoustic Pharyngometer (Sleep Group Solutions, Florida, USA), a noninvasive diagnostic modality. Result: A reduction in mean area (0.11 cm2) and volume (1.15 cc) of upper airway was observed following intrusion and retraction of maxillary anterior teeth, although the results obtained were not statistically significant (p >0.05). Conclusion: As the results of this study suggest, there is reduction in mean area and volume of upper airway following intrusion and retraction of maxillary anteriors; it is essential to assess the pretreatment dimensions of upper airway. Nonionizing and noninvasive modalities like acoustic pharyngometry can be utilized as an efficient and convenient diagnostic modality to assess the upper airway in orthodontic clinics.


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  1. Kharbanda OP. Orthodontics diagnosis and management of malocclusion and dentofacial deformities. 2nd ed. New Delhi: Elsevier; 2013, p. 18–31.
  2. Ahn HW, Moon SC, Baek SH. Morphometric evaluation of changes in the alveolar bone and roots of the maxillary anterior teeth before and after en masse retraction using cone-beam computed tomography. Angle Orthod 2013;83(2):212–221. DOI: 10.2319/041812-325.1.
  3. Guo Q, Liu D, Li L, et al. Morphological changes of pharyngeal airway after incisor retraction in bimaxillary protrusion growing patients with maximum anchorage. J Clin Case Rep Trials 2019;2(2):35–40.
  4. Nasser A, Alshammari R, Al-Jewair T, et al. Post-orthodontic pharyngeal airway changes following first premolar extraction and incisor retraction in bimaxillary protrusion patients–a retrospective study. J Res Med Dent Sci 2019;7(5):29–38.
  5. Zhao W, An X. Research progress of maxillary anterior teeth en masse retraction in patients with tooth extraction. AIP Conf Proc 2020;2208(1):1–8. DOI: 10.1063/5.0000022.
  6. Sprenger R, Martins LAC, Dos Santos JCB, et al. A retrospective cephalometric study on upper airway spaces in different facial types. Prog Orthod 2017;18(1):25. DOI: 10.1186/s40510-017-0180-2.
  7. Oh K-M, Hong J-S, Kim Y-J, et al. Three-dimensional analysis of pharyngeal airway form in children with anteroposterior facial patterns. Angle Orthod 2011;81(6):1075–1082. DOI: 10.2319/010711-8.1.
  8. Jayan B, Kadu A. Airway-focused orthodontics. J Indian Orthod Soc 2018;52(4):23–28. DOI: 10.4103/jios.jios_51_18.
  9. Rojas E, Corvalán R, Messen E, et al. Upper airway assessment in orthodontics: a review. Odontoestomatología 2019;19(30):40–51. DOI: 10.22592/ode2017n30a5.
  10. Zimmerman JN, Vora SR, Pliska BT. Reliability of upper airway assessment using CBCT. Eur J Orthod 2019;41(1):101–108. DOI: 10.1093/ejo/cjy058.
  11. Kamal I. Acoustic pharyngometry objective assessment of the upper airway—the normal standard curve. Egypt J Otolaryngol 2001;17:105–115.
  12. Kumar S, Jayan B, Bansal AK. Acoustic pharyngometry: an objective assessment tool for determining pharyngeal airway. J Dent Specialities 2015;3(1):102–108.
  13. Hilger JJ, Farzin-Nia P. Adjuncts to bioprogressive therapy—the asymmetrical T archwire. J Clin Orthod 1992;26:81–86.
  14. Hu Z, Yin X, Liao J, et al. The effect of teeth extraction for orthodontic treatment on the upper airway: a systematic review. Sleep Breath 2015;19(2):441–451. DOI: 10.1007/s11325-015-1122-1.
  15. Ng JH, Song YL, Yap AUJ. Effects of bicuspid extractions and incisor retraction on upper airway of Asian adults and late adolescents: a systematic review. J Oral Rehabil 2019;46(11):1071–1087. DOI: 10.1111/joor.12854.
  16. Jackson AC, Butler JP, Millet EJ, et al. Airway geometry by analysis of acoustic pulse response measurements. J Appl Physiol 1977;43(3):523–536. DOI: 10.1152/jappl.1977.43.3.523.
  17. Kamal I. Test-retest validity of acoustic pharyngometry measurements. Otolaryngol Head Neck Surg 2004;130(2):223–228. DOI: 10.1016/j.otohns.2003.08.024.
  18. Gelardi M, Maselli del Giudice A, Cariti F, et al. Acoustic pharyngometry: clinical and instrumental correlations in sleep disorders. Rev Bras Otorrinolaringol 2007;73(2):257–265. DOI: 10.1016/s1808-8694(15)31075-2.
  19. DeYoung PN, Bakker JP, Sands SA, et al. Acoustic pharyngometry measurement of minimal cross-sectional airway area is a significant independent predictor of moderate-to-severe obstructive sleep apnea. J Clin Sleep Med 2013;9(11):1161–1164. DOI: 10.5664/jcsm.3158.
  20. Kumar S, Jayan B, Kumar P, et al. Acoustic pharyngometry vs lateral cephalometry: a comparative evaluation of pharyngeal airway dimensions in patients with skeletal class I and skeletal class II malocclusion. Orthod Waves 2019;78(3):118–125. DOI: 10.1016/j.odw.2019.07.001.
  21. Chen Y, Hong L, Wang CL, et al. Effect of large incisor retraction on upper airway morphology in adult bimaxillary protrusion patients. Angle Orthod 2012;82(6):964–970. DOI: 10.2319/110211-675.1.
  22. Bhatia S, Jayan B, Chopra SS. Effect of retraction of anterior teeth on pharyngeal airway and hyoid bone position in Class I bimaxillary dentoalveolar protrusion. Med J Armed Forces India 2016;72(1):17–23. DOI: 10.1016/j.mjafi.2016.06.006.
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