Three-dimensional study of the upper airway in different skeletal Class II malocclusion patterns

Brito, Fernando Cardoso; Brunetto, Daniel Paludo; Nojima, Matilde da Cunha Gonçalves

doi:10.2319/112117-806.1

Cited by 19 publications

(13 citation statements)

References 24 publications

(55 reference statements)

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“…Different aspects were analysed by other authors: effects produced by conventional fixed appliance therapy and/or orthognathic surgery, effects produced by extractive treatments and outcomes generated by functional appliance therapy 4‐10 . Among them, a special interest was devoted to the possible relationships between airway dimensions and different anteroposterior facial patterns 11‐18 . The interest in elucidating these relationships is not new: airway and the naso‐respiratory function have been in the centre of interest among orthodontists since the seventies 19,20 .…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the controversy became even more complex. Some authors claimed the relationship between skeletal anteroposterior facial patterns and airway volumes, 12‐14,17,22 while many others could not reach the same conclusions 16,18,23‐25 …”

Section: Introductionmentioning

confidence: 99%

“…Some authors claimed the relationship between skeletal anteroposterior facial patterns and airway volumes, [12][13][14]17,22 while many others could not reach the same conclusions. 16,18,[23][24][25] Although some controversies could be attributed to the lack of consistency between the different methodologies applied, it is believed that assessing the three-dimensional structure of the skull through the lens of traditional schemes could lead to an underrepresentation of this composite musculo-skeletal craniofacial complex.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8][9][10] Among them, a special interest was devoted to the possible relationships between airway dimensions and different anteroposterior facial patterns. [11][12][13][14][15][16][17][18] The interest in elucidating these relationships is not new: airway and the naso-respiratory function have been in the centre of interest among orthodontists since the seventies. 19,20 Despite the large number of studies produced, in 1990 Warren and Spalding stated that the relationship between naso-respiratory function and dentofacial development is anyhow controversial.…”

Section: Introductionmentioning

confidence: 99%

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A community detection analysis of malocclusion classes from orthodontics and upper airway data

Carlo

Gili

Caldarelli

et al. 2021

Orthod Craniofacial Res

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Objective The interaction between skeletal class and upper airway has been extensively studied. Nevertheless, this relationship has not been clearly elucidated, with the heterogeneity of results suggesting the existence of different patterns for patients' classification, which has been elusive so far, probably due to oversimplified approaches. Hence, a network analysis was applied to test whether different patterns in patients' grouping exist. Settings and sample population Ninety young adult patients with no obvious signs of respiratory diseases and no previous adeno‐tonsillectomy procedures, with thirty patients characterized as Class I (0 < ANB < 4); 30 Class II (ANB > 4); and 30 as Class III (ANB < 0). Materials and methods A community detection approach was applied on a graph obtained from a previously analysed sample: thirty‐two measurements (nineteen cephalometric and thirteen upper airways data) were considered. Results An airway‐orthodontic complex network has been obtained by cross‐correlating patients. Before entering the correlation, data were controlled for age and gender using linear regression and standardized. By including or not the upper airway measurements as independent variables, two different community structures were obtained. Each contained five modules, though with different patients' assignments. Conclusion The community detection algorithm found the existence of more than the three classical skeletal classifications. These results support the development of alternative tools to classify subjects according to their craniofacial morphology. This approach could offer a powerful tool for implementing novel strategies for clinical and research in orthodontics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A community detection analysis of malocclusion classes from orthodontics and upper airway data

Carlo

Gili

Caldarelli

et al. 2021

Orthod Craniofacial Res

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“…To overcome these limitations, three-dimensional (3D) imaging can be used to enable better volume rendering, image reconstruction, and evaluation of the position of the jaws in direct relation to the airway. Although upper airway volume and morphology in patients with different growth patterns has been evaluated three dimensionally, mandibular position with respect to the airway was not considered [12,13].…”

mentioning

confidence: 99%

Airway dimensions and mandibular position in adults with different growth patterns: a cone-beam computed tomography study

Paul¹,

Thakur²,

Mathur³

et al. 2022

jos

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Introduction: Orthodontic treatment modalities depend on individual patient's growth pattern and mandibular position. The airway is an important determinant of treatment. Therefore, a clear correlation between different growth patterns, mandibular positions, and airway would lead to better diagnosis and more specific planning. Objectives: The aim of this study was to evaluate mandibular position and its' relationship to pharyngeal airway dimensions in patients with different growth patterns using cone-beam computed tomography (CBCT). Material and methods: CBCT scans of patients were assigned to vertical, average, and horizontal growth pattern types, based on angular (S-N/Go-Me) and linear (S-Go/N-Me) measurements. Data of included patients was used for 3-dimensional reconstruction of the pharyngeal airway to assess parameters, such as total airway volume, airway length, mandibular position, and correlation with different growth patterns. For statistical analysis, one-way ANOVA, post-hoc Tukey test (for pairwise comparisons), and Spearman's correlation with a significance level of 0.05 were applied. Results: The mandibular distance from the airway was significantly higher in the horizontal growth pattern group (p = 0.035). Airway volume was lower in the vertical growth pattern group as compared with the horizontal growth pattern group (p = 0.043). A negative correlation was observed between mandibular position and airway length (p = 0.021, r = -0.338). Conclusions: Subjects with horizontal growth patterns tend to have shorter and wider airways with their mandibles farther away, as compared to those with vertical growth patterns. To avoid the risk of compromising narrow airway dimensions, clinicians must take into account these findings while planning orthodontic and surgical treatment.

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Beziehung zwischen kraniofazialer und Zahnbogenmorphologie und pharyngealem Atemwegsraum bei Jugendlichen

et al. 2022

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Three-dimensional study of the upper airway in different skeletal Class II malocclusion patterns

Abstract: Upper airway volume and morphology were similar in different skeletal patterns of Class II malocclusion. Actual upper and lower jaw lengths were more closely related to upper airway volume and morphology than the angles that reflected their position relative to the cranial base.

Cited by 19 publications

References 24 publications

A community detection analysis of malocclusion classes from orthodontics and upper airway data

A community detection analysis of malocclusion classes from orthodontics and upper airway data

Airway dimensions and mandibular position in adults with different growth patterns: a cone-beam computed tomography study

Beziehung zwischen kraniofazialer und Zahnbogenmorphologie und pharyngealem Atemwegsraum bei Jugendlichen

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