The effect of concha bullosa and nasal septal deviation on palatal dimensions: a cone beam computed tomography study

Abstract

Introduction Nasal septal deviation (NSD) and concha bullosa (CB) are associated with airway obstruction in mouth breathers. Mouth breathing is associated with alterations in maxillary growth and palatal architecture. The aim of our study was to determine the effect of the presence of CB and NSD on the dimensions of the hard palate using cone-beam computed tomography (CBCT). Materials and methods A retrospective study was conducted using CBCT scans of 200 study subjects. The study subjects were divided into four groups based on the presence of CB and NSD. Septal deviation angle (SDA), palatal interalveolar length (PIL), palatal depth (PD) and maxillopalatal arch angle (MPAA) were measured in the study groups. Results The presence of NSD and CB was associated with significant (p < 0.001) differences in the palatal dimensions of the study subjects. The PIL and MPA (p < 0.001) were significantly reduced (p < 0.001), whereas the PD was significantly increased (p < 0.001) in study subjects with NSD and CB. There was no significant change in the palatal dimensions between the unilateral and bilateral types of CB. Among the palatal dimensions, the PIL had the most significant association (R2 = 0.53) with SDA and CB. There was a significant correlation between the palatal dimensions and SDA when CB was present along with NSD. Conclusion Based on the results of this study, it can be concluded that the presence of NSD and CB have a significant effect on the palatal dimensions and, therefore, they may be associated with skeletal malocclusion.

Analysis of inferior nasal turbinate volume in subjects with nasal septum deviation: a retrospective cone beam tomography study

“…The criteria for determining ITH was based on the maximal width of inferior turbinate in the coronal CBCT section. A width of more than 10 mm was considered as ITH, based on the findings of published CT and CBCT studies ( Jha, Ghimire & Shrestha, 2020 ; Shetty et al, 2021 ). Based on the maximal width of the right and left turbinates the scans were further subdivided as unilateral or bilateral ITH.…”

“…Apart from lower radiation dose CBCT has higher image resolution, lower cost and provides thinner image slices compared to CT. In our previous work we have studied the association between NSD and inferior turbinate hypertrophy (ITH) using CBCT ( Shetty et al, 2021 ). We found that the width of the inferior nasal turbinates had an association with the degree of nasal septal deviation.…”

Anatomical Variant in Middle Turbinate: Concha Bullosa, Finding on Cone Beam Computerized Tomography

“…The anatomical variants of the nasal turbinates are important in the pathogenesis of the inflammatory processes of the paranasal sinuses, such as for the etiology of sinusitis associated with the middle turbinate (4,5). A significant correlation between the palatal dimensions, the presence of the concha bullosa and the deviation of the nasal septum that can contribute to the establishment of the skeletal malocclusion is also mentioned (6). In addition, the presence of the concha bullosa and deviation of the nasal septum would be related to compensatory hypertrophy of the contralateral turbinate (7).…”

Application of novel probation teaching mode in implant dentistry curriculum for Chinese undergraduate students

“…Since its complete spectrum cannot be covered within the undergraduate curriculum, previous studies have stated the importance of solid theoretical foundation and suitable clinical experience before the clinical internship or rotation [8,9]. Multiple teaching approaches have been introduced into the undergraduate setting of implant dentistry education, including implant planning software, virtual reality training, and 3D modelling [10][11][12]. Nevertheless, current teaching modes only focused on the preclinical training inside the laboratory, and barriers in implant dentistry education still exist, such as lack of clinical training, and divorce of theory and clinical practice [13].…”

“…Since its complete spectrum cannot be covered within the undergraduate curriculum, previous studies have stated the importance of solid theoretical foundation and suitable clinical experience before the clinical internship or rotation [8,9]. Multiple teaching approaches have been introduced into the undergraduate setting of implant dentistry education, including implant planning software, virtual reality training, and 3D modelling [10][11][12].…”