Research Article

Impact of Nasal Septum Deviation on Maxillomandibular Morphology and Nasal Volume: A Retrospective Computed Tomography Study

Volume: 28 Number: 3 September 30, 2025
EN

Impact of Nasal Septum Deviation on Maxillomandibular Morphology and Nasal Volume: A Retrospective Computed Tomography Study

Abstract

Objectives This study aimed to investigate the association between nasal septum deviation (NSD) and the development of maxillomandibular structures and nasal morphology. Materials and Methods Computed tomography (CT) scans of 337 patients (mean age: 34.9 ± 10.95 years) were analyzed to assess the realtionship between NSD, transverse maxillary/mandibulary dimensions, and nasal volume. Measurements included 4 maxillary and 1 mandibular landmarks: Anterior nasal spina-posterior nasal spina (ANS-PNS) length, maxillary width, maxillary height (distance from Mx-Mx line to orbital floors), maxillary depth (distance from the first molar cemento-enamel junction to nasal floor), mandibular width (the distance between the outermost points of mandibular left and right first permanent molar). NSD presence was classified using Mladina’s system. Student’s t-test compared measurements based on NSD presence, while ANOVA assessed differences among NSD types. Statistical significance was set at p<0.05. Results Among participants, 44 (13.1%) had no nasal septal deviation (NSD). The prevalence of NSD types was as follows: Type I (21.1%), Type II (10.7%), Type III (16.6%), Type IV (7.4%), Type V (10.1%), Type VI (14.8%), and Type VII (6.2%). Comparison between patients with and without NSD showed no statistically significant differences in ANS-PNS distance, maxillary width, maxillary height, maxillary nasal base height, or mandibular molar width (p > 0.05). Males exhibited significantly larger craniofacial parameters and nasal volume than females. Maxillary width in patients aged 16 and older was significantly smaller than the value reported by Ricketts (p < 0.05). Nasal volume increased in the presence of NSD (p=0.01). Conclusions While NSD is a common condition, its impact on maxillomandibular development remains uncertain. However, its presence is associated with an increase in nasal volume. Further research incorporating larger sample sizes, advanced volumetric analyses, and functional assessments is essential to comprehensively evaluate the relationship between NSD and maxillomandibular morphology. Keywords: nasal septum, maxilla, mandible, nasal obstruction, cone-beam computed tomography ÖZET Amaç: Bu çalışmanın amacı, nazal septum deviasyonu (NSD) ile maksillomandibular ve nazal gelişim arasındaki ilişkiyi araştırmaktır. Gereç ve Yöntemler: Çalışmada, 337 hastanın (ortalama yaş: 34,9 ± 10,95 yıl) paranazal bilgisayarlı tomografi (BT) görüntüleri kullanılarak NSD ile maksiller/mandibular transvers parametreler ve nazal hacim arasındaki ilişki analiz edilmiştir. Ölçümler 4 maksiller ve 1 mandibular anatomik noktayı içermektedir: Anterior nazal spina-posterior nazal spina (ANS-PNS) uzunluğu, maksiller genişlik, maksiller yükseklik (Mx-Mx hattından orbitaların tabanına olan mesafe), maksiller derinlik (birinci molar bölgesindeki sement-mine birleşiminden nazal tabana olan mesafe) ve mandibular genişlik (sol ve sağ mandibular birinci moların en dış noktaları arasındaki mesafe). NSD varlığına göre ölçümleri karşılaştırmak için Student’s t-testi uygulanmıştır. Farklı NSD tiplerine bağlı parametre farklılıkları ANOVA testi ile değerlendirilmiştir. İstatistiksel anlamlılık seviyesi olarak p<0,05 kabul edilmiştir. Bulgular: Toplam 44 hastada (%13,1) NSD saptanmamıştır. Mladina sınıflamasına göre NSD tiplerinin dağılımı şu şekilde bulunmuştur: Tip I (%21,1), Tip II (%10,7), Tip III (%16,6), Tip IV (%7,4), Tip V (%10,1), Tip VI (%14,8) ve Tip VII (%6,2). NSD bulunan ve bulunmayan hastalar karşılaştırıldığında, ANS-PNS mesafesi, maksiller genişlik, maksiller yükseklik, maksiller nazal taban yüksekliği ve mandibular molar genişlik açısından istatistiksel olarak anlamlı bir fark saptanmamıştır (p > 0,05). Erkek hastalarda, kadınlara kıyasla kraniyofasiyal parametreler ve toplam nazal hacim anlamlı derecede daha büyük bulunmuştur. 16 yaş ve üzeri hastalarda maksiller genişlik, Ricketts tarafından bildirilen değerlerden daha küçük bulunmuştur. NSD varlığında nazal hacimde artış gözlenmiştir (p=0.01) Sonuçlar: NSD yaygın bir durum olmakla birlikte, kraniyofasiyal gelişim üzerindeki etkisi belirsizliğini korumaktadır. NSD, maksiller ve mandibular temel boyutları anlamlı şekilde değiştirmemekle birlikte, nazal hacimde artışla ilişkilidir. NSD ve maksillomandibular morfoloji arasındaki ilişkiyi kapsamlı bir şekilde değerlendirebilmek için daha geniş örneklem grupları, ileri hacim analizleri ve fonksiyonel değerlendirmeler içeren ek çalışmalara ihtiyaç vardır. • Anahtar Kelimeler: Nazal septum, maksilla, mandibula, nazal tıkanıklık, konik ışınlı bilgisayarlı tomografi

Keywords

Project Number

Not applicable

References

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Details

Primary Language

English

Subjects

Orthodontics and Dentofacial Orthopaedics

Journal Section

Research Article

Publication Date

September 30, 2025

Submission Date

March 25, 2025

Acceptance Date

August 29, 2025

Published in Issue

Year 2025 Volume: 28 Number: 3

EndNote
Eivazi Gharamaleki E, Gülyurt M, Dumanli Gök G, Öztürkmen Z, Saritzali G (September 1, 2025) Impact of Nasal Septum Deviation on Maxillomandibular Morphology and Nasal Volume: A Retrospective Computed Tomography Study. Cumhuriyet Dental Journal 28 3 375–382.

Cumhuriyet Dental Journal (Cumhuriyet Dent J, CDJ) is the official publication of Cumhuriyet University Faculty of Dentistry. CDJ is an international journal dedicated to the latest advancement of dentistry. The aim of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of dentistry. First issue of the Journal of Cumhuriyet University Faculty of Dentistry was published in 1998. In 2010, journal's name was changed as Cumhuriyet Dental Journal. Journal’s publication language is English.


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