scholarly journals Computed tomography assessment of temporomandibular joint position and dimensions in patients with class II division 1 and division 2 malocclusions

2017 ◽  
pp. 0-0
Author(s):  
H Gorucu-Coskuner ◽  
S Ciger
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Class Ii ◽  
Joint Position ◽  
Division 1 ◽  
Division 2 ◽  
Class Ii Division 1

Computed tomography evaluation of temporomandibular joint alterations in patients with class II division 1 subdivision malocclusions: condyle-fossa relationship

2004 ◽  
Vol 126 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Robert Willer Farinazzo Vitral ◽  
Carlos de Souza Telles ◽  
Marcelo Reis Fraga ◽  
Roberto Sotto Maior Fortes de Oliveira ◽  
Orlando Motohiro Tanaka
Keyword(s):  
Computed Tomography ◽  
Temporomandibular Joint ◽  
Class Ii ◽  
Division 1 ◽  
Class Ii Division 1

Comparative Dentoskeletal Study of Class II Division 1 and Class II Division 2 Malocclusion Subjects

2011 ◽  
Vol 1 (1) ◽  
pp. 36-41
Author(s):  
Jyoti Dhakal
Keyword(s):  
Class Ii ◽  
Class Ii Malocclusion ◽  
Basic Difference ◽  
Cephalometric Radiograph ◽  
Significant Difference ◽  
Division 1 ◽  
Dentoskeletal Morphology ◽  
Division 2 ◽  
Dental Cast ◽  
Class Ii Division 1

The dentoskeletal characteristics of Class II malocclusion subjects were evaluated using cephalometric radiograph and dental cast of 60 untreated patients. The sample included 30 Class II Division 1 and 30 Class II Division 2 malocclusion patients. The inter-canine, inter-premolar, inter-molar, inter-canine alveolar, inter-premolar alveolar, inter-molar alveolar widths are measured on study models. The result showed statistically significant difference between the groups for mandibular inter-canine width only. The cephalometric analysis revealed that SNB angle was responsible for the skeletal sagittal difference between the two groups except for the position of maxillary incisors. No basic difference in dentoskeletal morphology existed between Class II Division 1 and Class II Division 2 malocclusions.

scholarly journals Comparative Evaluation of Adenoids, Upper Airway, and Tongue Using “Predictors of Difficult Airways” in Class II Division 1 and Division 2 Cases with Class I Cases: Prospective In Vivo Observational Study

2021 ◽  
pp. 030157422096341
Author(s):  
Smita Mangesh Choudhari ◽  
Sunita Shrivastav
Keyword(s):  
Significant Positive Correlation ◽  
Upper Airway ◽  
Class Ii ◽  
Class I ◽  
Positive Correlation ◽  
Division 1 ◽  
Difficult Airways ◽  
Mandibular Protrusion ◽  
Division 2 ◽  
Class Ii Division 1

Introduction: Altered nasorespiratory function leads to altered craniofacial growth. Thus, airway evaluation is important for preventive, interceptive, and corrective orthodontic treatment. The aim of this study was to evaluate and compare adenoids, the upper airway, the tongue, and mandibular dimensions using “predictors of difficult airways” in class II division 1 and class II division 2 cases with class I cases. Method: Sixty subjects of age 15 to 18 years were divided into 3 groups (group 1: class I cases; group 2: class II division 1 cases; and group 3: class II division 2 cases) based on cephalometric parameters, with 20 cases in each group. Cephalometric evaluation of adenoids and the nasopharyngeal airway was done using the Handelman–Osborne area method. Upper and lower airway evaluation was done using McNamara’s linear method. “Predictors of difficult airways” were used for evaluation of the airway, which included nasal competency, the Mallampati scale, mandibular length, mandibular protrusion, and the thyromental distance. Results: The present study found a significant positive correlation between the grades of nasal competency and percentage adenoid wall area, and a significant negative correlation between the grades of nasal competency and the upper airway. There was a significant positive correlation between the grades of nasal competency and mandibular length, and a significant positive correlation between the grades of mandibular protrusion and mandibular length. There was a significant positive correlation between the grades of the thyromental distance and mandibular length. Conclusion: It was concluded that the “predictors of difficult airways” would be helpful in early diagnosis and identification of potential risk factors that may cause “breathing disorders”–related malocclusions and later on increase the risk of developing OSA.

scholarly journals Computed Tomography Evaluation of Craniomandibular Articulation in Class II Division 1 Malocclusion and Class I Normal Occlusion Subjects in North Indian Population

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
K. C. Prabhat ◽  
Sanjeev Kumar Verma ◽  
Sandhya Maheshwari ◽  
Ibne Ahmad ◽  
Mohd. Tariq
Keyword(s):  
Computed Tomography ◽  
Indian Population ◽  
Class Ii ◽  
Class I ◽  
Spiral Computed ◽  
Computed Tomography Images ◽  
Normal Occlusion ◽  
Division 1 ◽  
Joint Morphology ◽  
Class Ii Division 1

Objective. The purpose of this study is to investigate the Craniomandibular articulation morphology and position of condyle in mandibular fossae in Angle’s class I normal occlusion and Angle’s class II division 1 malocclusion. Materials and Methods. The present study was conducted on 40 subjects with 20 subjects in each group, and the computed tomography images were obtained using spiral computed tomography technique. Each measurement was compared by two-factor analysis of variance (ANOVA) while changes in anterior and posterior joint spaces were done by paired t-test. Results. Statistically significant anterior positioning of condyle was observed in class I normal malocclusion, and it was significant only on right side in class II division 1 malocclusion. Conclusions. There was no difference found in the condylar process and joint morphology between right and left sides of both Angle’s Class I normal occlusion and Angle’s class II division 1 malocclusion. Evaluation of the position of the condyles in their respective mandibular fossae showed concentric position with a tendency towards anterior positioning for both right and left sides of the subjects with Angle’s Class I normal occlusion as well as subjects with Angle’s class II division 1 malocclusion.

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