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Sagittal airway dimensions following maxillary protraction: a pilot study.
Eur J Orthod. 2006 Apr; 28(2):184-9.EJ

Abstract

The relationship between changes in the position of the maxillary structures caused by maxillary protraction therapy and airway dimensions have not been investigated as comprehensively as the accompanying skeletal changes. The purpose of this study was to examine the effects of rapid palatal expansion (RPE) used in conjunction with maxillary protraction headgear on the sagittal dimension of the airway. The treatment sample consisted of 19 Class III patients (12 girls, 7 boys) with a mean age of 10.51 +/- 1.15 years, presenting with maxillary retrognathism. A cap splint type rapid palatal expander that had hooks between the upper lateral and canine teeth was used intraorally, and a Petit type facemask device extraorally, for an average of 6.78 +/- 0.93 months. Pre- and post-treatment cephalometric radiographs were evaluated. The results of the study revealed that point A moved anteriorly. The palatal plane showed a counter-clockwise rotation matched by the clockwise rotation of the mandible and an accompanying decrease in SNB angle. The vertical parameters showed a statistically significant increase. The head was in a more extensive position in relation to the cervical vertebrae. The nasopharyngeal airway measurements (PNS-ad1, PNS-ad2) showed an increase of 2.71 +/- 3.35 and 3.03 +/- 2.37 mm, respectively. These results demonstrated that limited maxillary widening together with protraction of the maxilla, improve nasopharyngeal but not oropharyngeal airway dimensions in the short term.

Authors+Show Affiliations

Faculty of Dentistry, Yeditepe University, Istanbul, Turkey. drkorkmaz@yeditepe.edu.trNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16464873

Citation

Sayinsu, Korkmaz, et al. "Sagittal Airway Dimensions Following Maxillary Protraction: a Pilot Study." European Journal of Orthodontics, vol. 28, no. 2, 2006, pp. 184-9.
Sayinsu K, Isik F, Arun T. Sagittal airway dimensions following maxillary protraction: a pilot study. Eur J Orthod. 2006;28(2):184-9.
Sayinsu, K., Isik, F., & Arun, T. (2006). Sagittal airway dimensions following maxillary protraction: a pilot study. European Journal of Orthodontics, 28(2), 184-9.
Sayinsu K, Isik F, Arun T. Sagittal Airway Dimensions Following Maxillary Protraction: a Pilot Study. Eur J Orthod. 2006;28(2):184-9. PubMed PMID: 16464873.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sagittal airway dimensions following maxillary protraction: a pilot study. AU - Sayinsu,Korkmaz, AU - Isik,Fulya, AU - Arun,Tülin, Y1 - 2006/02/07/ PY - 2006/2/9/pubmed PY - 2006/5/26/medline PY - 2006/2/9/entrez SP - 184 EP - 9 JF - European journal of orthodontics JO - Eur J Orthod VL - 28 IS - 2 N2 - The relationship between changes in the position of the maxillary structures caused by maxillary protraction therapy and airway dimensions have not been investigated as comprehensively as the accompanying skeletal changes. The purpose of this study was to examine the effects of rapid palatal expansion (RPE) used in conjunction with maxillary protraction headgear on the sagittal dimension of the airway. The treatment sample consisted of 19 Class III patients (12 girls, 7 boys) with a mean age of 10.51 +/- 1.15 years, presenting with maxillary retrognathism. A cap splint type rapid palatal expander that had hooks between the upper lateral and canine teeth was used intraorally, and a Petit type facemask device extraorally, for an average of 6.78 +/- 0.93 months. Pre- and post-treatment cephalometric radiographs were evaluated. The results of the study revealed that point A moved anteriorly. The palatal plane showed a counter-clockwise rotation matched by the clockwise rotation of the mandible and an accompanying decrease in SNB angle. The vertical parameters showed a statistically significant increase. The head was in a more extensive position in relation to the cervical vertebrae. The nasopharyngeal airway measurements (PNS-ad1, PNS-ad2) showed an increase of 2.71 +/- 3.35 and 3.03 +/- 2.37 mm, respectively. These results demonstrated that limited maxillary widening together with protraction of the maxilla, improve nasopharyngeal but not oropharyngeal airway dimensions in the short term. SN - 0141-5387 UR - https://www.unboundmedicine.com/medline/citation/16464873/Sagittal_airway_dimensions_following_maxillary_protraction:_a_pilot_study_ L2 - https://academic.oup.com/ejo/article-lookup/doi/10.1093/ejo/cji095 DB - PRIME DP - Unbound Medicine ER -