scholarly journals Evaluation of airway and obstructive sleep apnoea in cleft lip and cleft palate adolescents using cone-beam computed tomography — a retrospective study

2017 ◽  
Vol 46 ◽  
pp. 64-65
Author(s):  
R. Joy ◽  
S. Edwards ◽  
D. Gupta ◽  
P. Afzali ◽  
R.S. Conley ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Cleft Palate ◽  
Obstructive Sleep Apnoea ◽  
Cone Beam Computed Tomography ◽  
Cleft Lip ◽  
Sleep Apnoea ◽  
Cone Beam ◽  
Obstructive Sleep

Airway changes in obstructive sleep apnoea patients associated with a supine versus an upright position examined using cone beam computed tomography

2014 ◽  
Vol 128 (9) ◽  
pp. 824-830 ◽  
Author(s):  
M Camacho ◽  
R Capasso ◽  
S Schendel
Keyword(s):  
Computed Tomography ◽  
Obstructive Sleep Apnoea ◽  
Cone Beam Computed Tomography ◽  
Sleep Apnoea ◽  
Upright Position ◽  
Cross Sectional Area ◽  
Cone Beam ◽  
Sectional Area ◽  
Cross Sectional ◽  
Obstructive Sleep

AbstractObjective:This study aimed to describe total volume and cross-sectional area measurement changes in obstructive sleep apnoea patients associated with a supine versus an upright position.Method:A retrospective chart review of patients who underwent cone beam computed tomography in upright and supine positions was performed, and the images were analysed.Results:Five obstructive sleep apnoea patients (all male) underwent both upright and supine cone beam computed tomography imaging. Mean age was 35.0 ± 9.3 years, mean body mass index was 28.1 ± 2.7 kg/m2 and mean apnoea–hypopnoea index was 39.3 ± 23.0 per hour. The airway was smaller when patients were in a supine compared with an upright position, as reflected by decreases in the following airway measurements: total volume; posterior nasal spine, uvula tip, retrolingual and tongue base (not significant) cross-sectional areas; and site of the minimum cross-sectional area (of the overall airway). Total airway volume decreased by 32.6 per cent and cross-sectional area measurements decreased between 32.3 and 75.9 per cent when patients were in a supine position.Conclusion:In this case series, the airway of obstructive sleep apnoea patients was significantly smaller when patients were in a supine compared with an upright position.

Predictors of Velopharyngeal Dysfunction in Individuals With Cleft Palate Following Surgical Maxillary Advancement: Clinical and Tomographic Assessments

2019 ◽  
Vol 56 (10) ◽  
pp. 1314-1321 ◽  
Author(s):  
Maria Natália Leite de Medeiros-Santana ◽  
Jamie L. Perry ◽  
Renato Yassutaka Faria Yaedú ◽  
Ivy Kiemle Trindade-Suedam ◽  
Renata Paciello Yamashita
Keyword(s):  
Computed Tomography ◽  
Cleft Palate ◽  
Cone Beam Computed Tomography ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Cone Beam ◽  
Point Scale ◽  
Maxillary Advancement ◽  
Significant Difference ◽  
T1 And T2

Objective: To investigate whether morphofunctional velopharyngeal aspects may be considered predictors of appearance or worsening of hypernasality in patients with cleft palate after surgical maxillary advancement (MA). Design: Prospective. Setting: National referral center for cleft lip and palate rehabilitation. Participants: Fifty-two patients with repaired cleft palate, skeletal class III malocclusion, and normal speech resonance completed speech audio recordings and cone-beam computed tomography examination before (T1) and, on average, 14 months after (T2) MA. Interventions: Hypernasality was rated by 3 experienced speech-language pathologists using a 4-point scale and morphofunctional aspects on a 3-point scale. Cone-beam computed tomography image measurements were performed using Amira and Dolphin 3D software. For each velopharyngeal morphofunctional aspect analyzed, patients were compared according to the absence (G1) and presence (G2) of postoperative hypernasality. Main Outcome Measures: Comparison of hypernasality scores between T1 and T2 and association between hypernasality and each velopharyngeal morphofunctional aspect. Results: Significant difference was observed between T1 and T2 for hypernasality ( P = .031) and between G1 and G2 ( P = .015) for velar mobility, with significant association between this variable and hypernasality on T2 ( P = .041). Conclusions: Levator veli palatini mobility influenced the appearance of hypernasality after MA.

scholarly journals Analysis of Genial Tubercle Anatomy Using Cone Beam Computed Tomography – A Retrospective Study from Chennai, India

2021 ◽  
Vol 10 (38) ◽  
pp. 3333-3337
Author(s):  
Abarna Jawahar ◽  
Maragathavalli Gopal
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Radiology Department ◽  
Type I ◽  
Morphological Pattern ◽  
Obstructive Sleep ◽  
Mean Width ◽  
Genial Tubercle

BACKGROUND Analysis of genial tubercle anatomy using three-dimensional (3D) imaging can be valuable in preparation for genioglossus advancement in the treatment of obstructive sleep apnoea, estimation of the safe zone prior to implant surgery and evaluation of mandibular asymmetry. Hence the intention of the study was to analyse the morphological pattern, dimensions of genial tubercles and their position in the mandible using cone beam computed tomography (CBCT). METHODS A retrospective study was conducted on 100 patients scanned using Sirona Orthophos XG device in the Radiology department, Saveetha dental college and hospital. The genial tubercles were identified, morphological pattern of the genial tubercles was classified into four patterns and linear measurements of the genial tubercle height, width, position of genial tubercles on the mandible in the images were done. The collected data was tabulated and analysed using SPSS software. A paired t - test was used for intra examiner calibration and a chi-square test was used for comparison between genial tubercle patterns in both the sex. RESULTS On analysing the genial tubercle patterns, type I (44) was the most commonly seen followed by type II (24). Genial tubercles were not evident (type IV) in 20 patients. Type III (12) was least commonly seen among the pattern types. CONCLUSIONS The anatomy of genial tubercles is highly variable. The mean height of genial tubercles (GTH) measured was 5.36 mm and mean width of genial tubercles (GTW) measured was 5.24 mm. KEY WORDS Genial Tubercles, Anatomy, Cone Beam Computed Tomography, Mandible

scholarly journals Alveolar bone heights of maxillary central incisors in unilateral cleft lip and palate patients using cone-beam computed tomography evaluation

2021 ◽  
Author(s):  
Marcin Stasiak ◽  
Anna Wojtaszek-Słomińska ◽  
Bogna Racka-Pilszak
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Contralateral Side ◽  
Cone Beam ◽  
Rank Test ◽  
Cross Sectional ◽  
Alveolar Bone Grafting

Abstract Purpose The aims of this retrospective cross-sectional study were to measure and compare labial and palatal alveolar bone heights of maxillary central incisors in unilateral cleft lip and palate patients, following STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) guidelines. Patients and methods The study group consisted of 21 patients with a mean age of 16 years. High-resolution cone-beam computed tomography was performed at least one year after secondary alveolar bone grafting. The experimental side was the cleft side and the contralateral side without congenital cleft was the control. Measurements were performed on incisors’ midsagittal cross-sections. The Wilcoxon signed-rank test was used for intergroup comparisons. Results The labial and palatal distances between alveolar bone crests and cementoenamel junctions were significantly greater on the cleft side than on the noncleft side. Mean differences were 0.75 and 1.41 mm, respectively. The prevalence of dehiscences at the cleft side maxillary central incisors was 52% on the labial surface and 43% on the palatal surface. In the controls, it was 19% and 14%, respectively. Conclusion The cleft-adjacent maxillary central incisors had more apically displaced alveolar bone crests on the labial and palatal sides of the roots than the controls. Higher prevalence of dehiscences was found on the cleft side. Bone margin differences predispose to gingival height differences of the central incisors. These differences could increase the demands of patients to obtain more esthetic treatment results with orthodontic extrusion and periodontal intervention on the cleft side.

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