Changes in maxillary width and upper airway spaces in young adults after surgically assisted rapid palatal expansion with surgically facilitated orthodontic therapy

Li, Panpan; Jiao, Delong; Wang, Xiaoya; Liu, Jing; Martín, Domingo; Guo, Jing

doi:10.1016/j.oooo.2018.11.005

Cited by 14 publications

(6 citation statements)

References 16 publications

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“…Previous studies focused on the first molar when evaluating the width of the basal bone [42][43][44]. The results of this study reminded us that more evaluations of the transverse coordination of the second molar and the retromolar region between the upper and lower basal bone were necessary.…”

Section: Strengths and Limitationsmentioning

confidence: 60%

Match of the Bimaxillary Basal Bone Arches and Its Variations among Individuals

et al. 2021

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Introduction. This study is aimed at illustrating the bimaxillary basal bone contours, to clarify the match of the basal bone arches of the upper and lower, especially the posterior segments, including the second molar and retromolar region. Methods. Based on 100 cone-beam computed tomography (CBCT) images (50 males and 50 females), we obtained 100 pairs of basal bone arches, which were the horizontal inner cortex contours passing the furcation of the first molar paralleled to the lower occlusal plane. The Generalized Procrustes Analysis (GPA) was applied to depict average contours and calculate the ratio and difference width of both upper and lower dental arches in different positions. Variations of the basal bone morphology among individuals were revealed using Principal Component Analysis (PCA). Results. The width discrepancy occurred at 7-7 segment (male: upper 65.62 mm and lower 68.81 mm and female: upper 62.98 mm and lower 68.38 mm) and the retromolar region (male: upper 64.67 mm and lower 71.96 mm and female: upper 62.34 mm and lower 71.44 mm). The ratio ( p = 0.006 ) and difference value ( p = 0.009 ) of 7-7 segment and the ratio of retromolar region ( p = 0.044 ) differed in genders. Setting 2 mm overjet, the upper basal bone arch was wider than the lower by approximate 2 mm on both sides, except the second molar and retromolar region. According to PCA, the variation of basal bone arches appeared mainly at terminal segments. Conclusions. For both male and female, the bimaxillary basal bone matched except terminal segments. Mismatch of female bimaxillary posterior basal bone was more pronounced than male. The basal bone arches of male were wider and longer than that of female.

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Section: Strengths and Limitationsmentioning

confidence: 60%

Match of the Bimaxillary Basal Bone Arches and Its Variations among Individuals

et al. 2021

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“…36 Numerous other studies demonstrated the corrective effect of combined surgical and orthodontic treatments on the airway space. [35][36][37] Therefore, the present study excluded patients with a history of orthodontics.…”

Section: Discussionmentioning

confidence: 99%

Comparison of the pharyngeal airway in snoring and non-snoring patients based on the lateral cephalometric study: A case–control study

Tofangchiha¹,

Esfehani²,

Eftetahi³

et al. 2023

Dent. Med. Probl.

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Background. Normal airways are a key factor during the craniofacial growth of the young. Therefore, sleep-disordered breathing (SDB) without treatment can have harmful consequences for development and health.Objectives. This study aimed to evaluate the cephalometric characteristics in non-snoring individuals and snoring subjects, and investigate differences in the pharyngeal airway space between the 2 groups.Material and methods. This case-control study included 70 patients aged over 18 years, selected from a radiology center. The patients were divided into 2 groups: case (35 patients with a history of habitual snoring); and control (35 healthy patients). The Berlin sleep questionnaire was administered to the parents of the patients. The nasopharyngeal airway was measured according to the analysis of Linder-Aronson (1970), and 4 indices were measured and analyzed in each of the lateral cephalometric radiographs. Results.No statistically significant differences were observed in the pharyngeal measurements between the 2 groups, although all means in the control group were higher than in the experimental group. However, there was a significant relationship between gender and the Ba-S-PNS and PNS-AD2 indices. Conclusions.Although the patients with nocturnal snoring had smaller airway dimensions, their pharyngeal measurements were not significantly different from the control group.

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“…The aforementioned issue is referred to just to provide a better understanding, but the focus of this study was the influence of software, and there is no intention to draw attention to the findings of previous studies. [33][34][35] Since the group without an open bite had smaller dimensions according to both software packages, and given the intentional use of a higher threshold for the NemoStudio software, as well as the relationship of this threshold with the algorithm configuration, the values obtained with Ne-moStudio were higher, leading to significant differences in the measurements for the non-open bite group.…”

Section: Discussionmentioning

confidence: 99%

Effect of the application of software on the volumetric and cross-sectional assessment of the oropharyngeal airway of patients with and without an open bite: A CBCT study

Vidal-Manyari¹,

Arriola-Guillén²,

Jimenez-Valdivia³

et al. 2022

Dent. Med. Probl.

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Background. Using different software to evaluate the airways, with different thresholds, but within the range for airway recognition, could yield different measurements in the same patient with or without craniofacial disharmony. Objectives.The aim of the present study was to compare the volume and the most constricted area (MCA) of the oropharynx in individuals with or without an open bite by using 2 software programs meant for cone-beam computed tomography (CBCT).Material and methods. This comparative study included 60 cases selected from 137 CBCT scans obtained from individuals with the presence or absence of an open bite. Each group included adults of both genders -in total 30 women and 30 men -with a mean age of 27.57 ±11.85 years in the open bite group and 26.23 ±6.78 years in the control group. The oropharyngeal volume and MCA were measured with 2 three-dimensional (3D) software packages: Planmeca Romexis ® ; and Nemotec NemoStudio ® . Two calibrated orthodontists trained in the use of the software made the measurements. Data was analyzed using Student's t tests for independent and paired samples (p < 0.05). Results.In general, the oropharynx volume measurements obtained with the NemoStudio software were significantly higher than those obtained with Romexis (19,007.17 ±8005.79 mm 3 and 17,823.47 ±7148.62 mm 3 , respectively) (p = 0.020). However, when the groups were analyzed separately, the measurements of the group with an open bite did not differ according to the software used (p = 0.352). The measurements of the MCA of the oropharynx were significantly higher when obtained with the NemoStudio software (MD (mean difference) = 19.02 mm 2 ) (p = 0.005). In contrast, no difference in the MCA results for the 2 software packages was found in the open bite group (p = 0.728).Conclusions. The volumetric and cross-sectional measurements of the oropharyngeal airway, particularly in individuals without an open bite, were affected by the software used.

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Changes in maxillary width and upper airway spaces in young adults after surgically assisted rapid palatal expansion with surgically facilitated orthodontic therapy

Cited by 14 publications

References 16 publications

Match of the Bimaxillary Basal Bone Arches and Its Variations among Individuals

Match of the Bimaxillary Basal Bone Arches and Its Variations among Individuals

Comparison of the pharyngeal airway in snoring and non-snoring patients based on the lateral cephalometric study: A case–control study

Effect of the application of software on the volumetric and cross-sectional assessment of the oropharyngeal airway of patients with and without an open bite: A CBCT study

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