Cephalometric evaluation of the airway dimensions in subjects with different growth patterns

Ansar, Juhi; Singh, Raj Kumar; Bhattacharya, Preeti; Agarwal, Deepak; Verma, Sanjeev; Maheshwari, Sandhya

doi:10.4103/2321-3825.149051

Cited by 12 publications

(13 citation statements)

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“…Therefore, the decreased pharyngeal airway in hyperdivergent subjects cannot be attributed only to the larger adenoids or presence of soft tissues in the posterior nasopharyngeal region but may also be the consequence of other factors that are not fully understood. [ 24 ]…”

Section: Discussionmentioning

confidence: 99%

Assessment of airway dimensions in skeletal Class I malocclusion patients with various vertical facial patterns: A cephalometric study in a sample of the Saudi population

Alfawzan

2020

J Orthodont Sci

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OBJECTIVE: To compare airway widths among skeletal Class I malocclusion patients with different vertical facial patterns. MATERIAL AND METHODS: A total of 103 lateral cephalograms of skeletal Class I patients (mean age of 20 ± 2.3 years) with no history of orthodontic treatment, trauma, facial syndromes, or nasopharyngeal dysfunction were included. Based on the Frankfort–mandibular plane angle measurements, the sample was divided into three groups: low-angle, high-angle, and normal-angle groups. Upper and lower pharyngeal airway widths were measured as described by McNamara. The analysis of variance test was performed to compare the means of groups. Pairwise comparisons were performed using Tukey's post-hoc test. Differences were considered statistically significant at P < 0.05. RESULTS: ANOVA showed a significant mean difference between the groups for both the upper and lower airway widths with P values of 0.011 and 0.003, respectively. Tukey Pairwise comparisons showed the upper airway width to be significantly narrower in the high-angle group compared to the normal-angle ( P = 0.021) and low-angle groups ( P = 0.013). Furthermore, the lower airway width in the high angle group was significantly narrower than the normal angle ( P = 0.020) and low-angle groups ( P = 0.017). There were no statistically significant differences between normal and low angle groups. CONCLUSIONS: The upper and lower pharyngeal widths in the Class I high-angle group were significantly narrower than those in the normal-angle and low-angle groups.

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Section: Discussionmentioning

confidence: 99%

Assessment of airway dimensions in skeletal Class I malocclusion patients with various vertical facial patterns: A cephalometric study in a sample of the Saudi population

Alfawzan

2020

J Orthodont Sci

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“…Several studies on pharyngeal airway and face types have been done 1,3 . However, many have been evaluated by means of two-dimensional lateral cephalometric radiographs 2,3 .…”

Section: Introductionmentioning

confidence: 99%

“…Several studies on pharyngeal airway and face types have been done 1,3 . However, many have been evaluated by means of two-dimensional lateral cephalometric radiographs 2,3 . Since the human airway is a three-dimensional dynamic structure, two-dimensional static examination is not sufficient.…”

Section: Introductionmentioning

confidence: 99%

Cone-Beam Computed Tomography Analysis of Pharyngeal Airway Among Different Skeletal Facial Types

Soydinç¹

2021

jamp

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Craniofacial anomalies may cause alteration of pharyngeal airway due to compensation mechanisms occur as a result of physiological progresses. It's been always a subject of interest for orthodontics if there is a correlation between face morphology and airway. The aim of our study is to evaluate the relationship between pharyngeal airway and craniofacial structures according to facial growth patterns by 3-D imaging methods in individuals with different skeletal anomalies. For this purpose, archieved Cone Beam Computed Tomography (CBCT) images are used. Total number of 180 CBCT data were divided into to 3 groups in sagittal direction according to ANB as Class 1, Class 2 and Class 3. Then, each group were divided into 3 subgroups in vertical direction as horizontal, normal and vertical face types according to the SN-GoGn and sum of Posterior angles. The volumetric, areal and linear measurements of the airway were performed on the CBCT images by the MIMICS program and the results were analyzed by statistical methods. There was no statistically significant difference in volumetric measurements between Class 1, Class 2 and Class 3 groups. Significant differences in areal measurements in axial area at C2 level, in the transversal area at O-N border and in linear measurements, a-p at C2 levels and a-p at O-N margin were found. In Class 3 patients, there was a statistically significant difference between horizontal and normal face types at the level of a-p at C2. There was a statistically significant difference in a-p measurements at C2 level of horizontal face type group between Class 1-Class 3 and between Class 2-Class 3 groups. Malformations in the sagittal direction and different facial types in the vertical dimension may be related to pharyngeal airway volume and dimension.

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“…12 Airway constriction in young people can predispose them to obstructive episodes as they mature. 13 OSA's pathophysiology is sometimes associated with increased upper airway resistance, which might affect the quality of the pulmonary ventilation oxygenation and sleep. 14 Usual OSA symptoms comprise snoring, sleep apnea and hypopnea, and extreme daytime sleepiness.…”

Section: Introductionmentioning

confidence: 99%

Correlation Between Pharyngeal Airway Space and Sagittal Skeletal Malocclusions

Siddiqui¹,

Medical²,

Rizwan³

et al. 2020

J Pak Dent Assoc

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OBJECTIVE: To determine correlation between pharyngeal airway space and sagittal skeletal malocclusions. METHODOLOGY: Data was collected using pre-treatment records including pre-treatment lateral cephalograms of 54 orthodontic patients. Patients from both gender were included. The age group of selected patients was 15-25 years, Patients belonging to Pakistani ethnicity were included to avoid selection bias. Sagittal skeletal malocclusion was measured by ANB angle to group the skeletal Class I, II and III subjects (ANB=0-4°, ANB > 4° and ANB <0 respectively). Upper pharyngeal space and Lower Pharyngeal space was measured. This cross sectional study was conducted in Orthodontic OPD at Karachi Medical and Dental College, from August 2019 to March 2020. RESULTS: The obtained data showed strong negative correlation between ANB angle and upper pharyngeal space whereas moderately negative correlation between ANB angle and lower pharyngeal space. CONCLUSION: Upper and lower pharyngeal widths were influenced by Sagittal malocclusion. KEYWORDS: Pharyngeal airway space, Sagittal skeletal malocclusion, Obstructive sleep apnea, Sleep disordered breathing, ANB. HOW TO CITE: Siddiqui H, Rizwan S, Faisal SS, Hussain SS. Correlation between pharyngeal airway space and sagittal skeletal malocclusions. J Pak Dent Assoc 2020;29(4):217-222.

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Cephalometric evaluation of the airway dimensions in subjects with different growth patterns

Cited by 12 publications

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Assessment of airway dimensions in skeletal Class I malocclusion patients with various vertical facial patterns: A cephalometric study in a sample of the Saudi population

Assessment of airway dimensions in skeletal Class I malocclusion patients with various vertical facial patterns: A cephalometric study in a sample of the Saudi population

Cone-Beam Computed Tomography Analysis of Pharyngeal Airway Among Different Skeletal Facial Types

Correlation Between Pharyngeal Airway Space and Sagittal Skeletal Malocclusions

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