Relations between tongue dimensions and lower incisor crowding

Abstract

Aim: The aim of this study was to evaluate the relationship between the tongue dimension measurements and lower incisor crowding/position and to identify the possible gender differences. Subjects and Methods: Forty-five pretreatment plaster models and (ephalometric radiographs ot Class I patients taken by a standard technique formed the sample for this study. The sample of this study included 22 male (mean age: 1.5.67i 1.41 years) and 23 female (mean age: 13.86±1.35 years) patients. Lower incisor crowding was measured with the Little irregularity index. Multivariate statistical analysis was used at petween tongue area and lower incisor crowding/position; Pearson correlation coefficients (r) were estimated. Results: Statistically significant gender differences were dctemiined in tongue area (p=0.001). There was no statistically significant difference for the tongue measurements among subjects with different levels of crowding. In female group, significant correlations were determined between tongue area, L 1-NB (mm) (r= 0.457; p=0.029) and LI NB (r= -0.447; p=0.032) measurements. In male group, significant correlations were determined oetween incisor crowding; L1-NB (mm) (r= -0.590; p=0.004), L1-NB (r= -0.638;p=0.(X)1) and LI -mandibular plane (r= -0.505; p=O.OI7). Conclusion: No relationship was found between tongue measurements and different levels of mandibular incisors crowding. Statistically significant correlation was found ixitween tongue area and mandibular incisors position for both genders. Beside this, males showed significant inverse correlation between irregularity index and mandibular incisors position. (Turkish I Orthod 2011;24:3446)

Özet

Amaç: Bu çalışmanın amacı dil boyutu ile alt keser çapraşıklığı/pozisyonları arasındaki ilişkiyi incelemek ve cinsiyetler arası olası farklılıkları belirlemektir. Bireyler ve Yöntem: Bu çalışma için 45 sınıf I hastanın tedavi öncesi alçı modelleri ve sefalometrik radyografileri standart teknikle alınmıştır. Çalışma 22 erkek (ortalama yaş: 15,67±1,41 yıl) ve 23 kız (ortalama yaş: 13,86±1,35 yıl) hastadan oluşmaktadır. Alt keser çapraşıklığı Little çapraşıklık indeksi kullanılarak hesaplanmıştır. Çok değişkenli istatistiksel analizler p