Correlation between acoustic rhinometry, computed rhinomanometry and cone-beam computed tomography in mouth breathers with transverse maxillary deficiency

Publication date: Available online 25 November 2016
Source:Brazilian Journal of Otorhinolaryngology
Author(s): Raquel Harumi Uejima Satto Sakai, Fernando Augusto Lima Marson, Emerson Taro Inoue Sakuma, José Dirceu Ribeiro, Eulália Sakano
IntroductionTo provide clinical information and diagnosis in mouth breathers with transverse maxillary deficiency (MBTMD) with posterior crossbite. Numerous exams can be performed; however, the correlation among these exams remains unclear.ObjectiveTo evaluate the correlation between acoustic rhinometry (AR), computed rhinomanometry (CR), and cone-beam computed tomography (CBCT) in MBTMD.MethodsA cross-sectional study was conducted in 30 MBTMD (7–13 y.o.) patients with posterior crossbite. The examinations assessed: (i) AR: nasal volumes (0–5cm and 2–5cm) and minimum cross-sectional areas (MCA1 and MCA2) of nasal cavity; (ii) CR: flow (F) and average inspiratory (AIR) and expiratory (AER) resistance; (iii) CBCT: coronal section on the head of inferior turbinate (Widths 1 and 2), middle turbinate (Widths 3 and 4) and maxilla levels (Width 5). AR and CR were evaluated before (WVC) and after administration of vasoconstrictor. Results were compared by Spearman's correlation and Mann–Whitney tests (α=0.05).ResultsPositive correlation was observed between: (i) F/WVC and Width 4 (Rho=0.380) and Width 5 (Rho=0.371); (ii) Width 2 and MCA1/WVC (Rho=0.380); (iii) F/WVC and nasal volumes of 0–5cm (Rho=0.421), 2–5cm (Rho=0.393) and MCA1 (Rho=0.375); (iv) Width 4 and nasal volumes of 0–5cm/WVC (Rho=0.376), 2–5cm/WVC (Rho=0.376), MCA1/WVC (Rho=0.410) and MCA1 after administration of vasoconstrictor (Rho=0.426); (v) Width 5 and Width 1 (Rho=0.542), Width 2 (Rho=0.411), and Width 4 (Rho=0.429). Negative correlation was observed between: (i) Width 4 and AIR (Rho=−0.385); (ii) AIR/WVC and volume of 0–5cm (Rho=−0.382), and AER/WVC and MCA1 (Rho=−0.362).ConclusionThere was correlation between acoustic rhinometry, computed rhinomanometry, and cone-beam computed tomography in mouth breathers with transverse maxillary deficiency.



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