Evaluation of AirwayChanges After Rapid Maxillary Expansion

Abstract

The aim of this study to evaluate airwaychanges in patients who had undergone rapid maxillary expansion therapy.Material and method is consist of twenty-fivepatients 10 boys and 15 girls who were indicatedrapid maxillary expansion were included in thestudy. The mean age was 14,64 ± 2,26 years max:18,64 and min: 8,98 . Pretreatment SNA value was79,52 ± 3,37° and SNB value was 77,51 ± 3,66°.Fourteen airway measurements ANS-PNS-SPT,PNS-SPT, SPC-SPD, SPT-SPpp, PNS-PPW1, SPTPPW2, SPL/SPS, SPL/IPS, sbti-phwl, PNS-Eb, EbTt, GoGn-Hy, psp-phws ve sbtn-phwn were madeon cephalometric radiographs which had beentaken before T1 and after T2 treatment. Pairedt-test was used to compare changes in T1 and T2. There were no statistically significant difference in any airway measurements P>0.05 .However, there were increase in SPT-PPW2 indicates lower pharyngeal cavity and SPC-SPD, PNSSPT indicates soft palate dimensions . It wasshown that rapid maxillary expansion had increased nasal capacity by reducing nasal resistanceand therefore had facilitated respiration. But results of this study showed that rapid maxillary expansion did not produce the same effect in airway. In conclusion, it is determined that rapid maxillary expansion which was achieved with modifiedacrylic bonded rapid maxillary expansion appliance showed no significant changes in airwaydimensions

Keywords

• Maxillary constriction, rapidmaxillary expansion, nasopharyngeal airway

Hızlı üst çene genişletmesi sonucu oluşan hava yolu değişikliklerinin değerlendirilmesi

Abstract

Bu çalışmanın amacı hızlı üst çene genişletmesi yapılan hastalarda hava yolu değişikliklerinin incelenmesidir.Çalışmanın materyalini hızlı üst çene genişletmesi endikasyonu konulan 25 hastadan 10erkek ve 15 kız oluşmaktadır. Ortalama yaş 14,64± 2,26 yıldır max: 18,64 ve min: 8,98 . Tedaviöncesi SNA: 79,52 ± 3,37º ve SNB: 77,51 ± 3,66ºdir.Tedavi öncesi T1 ve tedavi sonrası T2 alındansefalometrik filmlerde 14 hava yolu ölçümüyapılmıştır ANS-PNS-SPT, PNS-SPT, SPC-SPD,SPT-SPpp, PNS-PPW1, SPT-PPW2, SPL/SPS,SPL/IPS, sbti-phwl, PNS-Eb, Eb-Tt, GoGn-Hy,psp-phws ve sbtn-phwn . T1 ve T2 de oluşandeğişikler eşleştirilmiş-t testi karşılaştırılmıştır.Herhangi bir hava yolu ölçümünde anlamlıbir fark görülmemiştir P>0.05 . Ancak alt faringeal boşluğu gösteren SPT-PPW2 ve uvulaboyutlarını gösteren SPC-SPD ve PNS-SPT değerlerinde artış vardır. Hızlı üst çene genişletmesininnazal direnci azaltarak, nazal kapasiteyi arttırdığı,dolayısıyla solunumu rahatlattığı gösterilmiştirancak bu çalışmanın bulguları, hızlı maksilergenişletmenin havayolunda aynı etkiyi göstermediğini ortaya koymuştur.Sonuç olarak modifiye akrilik bonded hızlırapid maksillar ekspansiyon apareyi ile yapılanhızlı üst çene genişletmesinin, havayolu boyutlarında anlamlı bir değişiklik sağlamadığı tespitedilmiştir

Keywords

• Maksiller darlık, rapidmaksillar ekspansiyon, nazofaringeal havayolu

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