Introduction: The proper selection of variations in a variety of face patterns is very important for orthodontic diagnosis and treatment. The classification of facial types is directly associated with the growth of the speech and skull and is divided into three different types: Brachy-Facial, Mesio-Facial and Dolicho-Facial. This study investigated the relationship between oral and nasal airway volume and the palatal height in different vertical facial patterns using CBCT images. Methods: In this retrospective study cases of 60 patients who were undergone CBCT scans at the Oral and Maxillofacial Radiology Department of Tabriz Dental School were used to assess the oral and nasal airway volume and palatal height. The sample subgroups were determined by the facial vertical ratio into three equal groups. Results: The results of the comparison of the volume of nasal airways in the three facial patterns indicated that there was a statistically significant difference between the three groups (p <0.05). The results of the comparison of the volume of oral airways and palatal height in the coronal and sagittal sections in the three facial patterns indicated that there was a no statistically significant difference between the three groups(P> 0.05) Conclusion: The results of the comparison of the volume of nasal airways indicated that the highest volume of nasal airway was seen in individuals with short face pattern, while the lowest volume of nasal airway was observed in the long face pattern.
