Comparative Assessment of Sagittal Jaw Discrepancies by Various Cephalometric Parameters in Skeletal Class I and Class II Malocclusion among Bhopal Population: A Cephalometric Study (original) (raw)
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Journal of Contemporary Dentistry, 2016
ABSTRACTIntroductionAn accurate evaluation of sagittal jaw relationship is important in orthodontic diagnosis and treatment planning. Numerous angular and linear measurements have been incorporated to assess anteroposterior jaw discrepancy between maxilla and mandible so as to reach the correct diagnosis. So the purpose of this study is to compare Beta angle and YEN angle used to measure anteroposterior dysplasia and to find which is the most reliable between them.Materials and MethodsThe sample comprised 26 pretreatment lateral cephalograms of Skeletal class II patients.ResultsDescriptive analysis was performed and highly significant values were found with both Beta angle and YEN angle.ConclusionBeta and YEN angles are significant ones to assess the sagittal jaw relationship between maxilla and mandible.How to cite this articleGupta PK, Karandikar GR, Ravindranath VK, Sonawane M, Patni VJ. A Comparative Evaluation of Reliability of Beta and YEN Angle in Diagnosis of Skeletal Class ...
Journal of Mahatma Gandhi University of Medical Sciences and Technology, 2021
Aim and objective: To establish the mean value, standard deviation, and to determine statistically significant differences of Beta, Yen, and W angle for skeletal class I, skeletal class II, and skeletal class III malocclusion in North India population. Materials and methods: The study will be carried on 90 pretreatment lateral cephalograms randomly taken from records of the Department of Orthodontics and Dentofacial Orthopedics, Genesis Institute of Dental Sciences and Research, Ferozepur. All the cephalograms will be traced using a sharp 0.5 mm pencil on 0.003-inch acetate tracing paper using an X-ray viewer. Mean values of measurements such as ANB angle and Wits appraisal will be calculated and will be divided into 3 groups of 30 samples each. Then, Beta, Yen, and W angle will be measured for all three groups. The data will then be summarized and standard statistical methods will be applied. Results: Beta angle had a value of 31.23 ± 3.2.99° for skeletal class I group, 25.33 ± 2.64° for skeletal class II group, 40.03 ± 3 0.05° for skeletal class III group, YEN angle had a value of 122.57 ± 6.53 for skeletal class I group, 115.20 ± 2.49 for skeletal class II group, and 132.60 ± 3.56 for skeletal class III group, and W angle had a value of 54.90 ± 2.39 for skeletal class I group, 51.17 ± 3.21 for skeletal class II group, and 59.40 ± 1.95 for skeletal class III group. Conclusion: A significant difference was present between the mean value of Beta, Yen, and W angle for class I, class II, and class III malocclusion. Clinical significance: Beta, Yen, and W angle are new parameters to diagnose the skeletal relationship of both the arches and are important clinically in diagnosis and treatment planning of the patient for orthodontic treatment.
2012
The study was aimed to check the predictability and variability of Yen angle along with other sagittal discrepancy parameters and to discuss the correlation existing between them, so as to obtained a more reliable and least variable parameter for antero-posterior cephalometric analysis. The lateral cephalograms of 120 Class II malocclusion in Indian subjects were obtained and traced for seventeen different sagittal discrepancy parameters. The age of subjects ranged from 17-24 years. Study revealed that, Yen angle was highly reliable (CV= 1.81) and most homogenously distributed angular parameter to assess antero-posterior sagittal discrepancy. Other parameters like FABA, APDI/ PABA, SGn-AB and Beta angle also exhibit homogenous distribution and less variability in comparison to other parameters. As all the parameters used in the study share statistically significant correlation amongst themselves, instead of relying on one single parameter, others also should be checked and should be...
Correlation between vertical components and skeletal class II malocclusion in ethnic Javanese
Clinical, Cosmetic and Investigational Dentistry, 2018
Introduction: The dentoskeletal morphology of Class II malocclusion has been analyzed in several cephalometric investigations. It is crucially important to understand the vertical components in orthodontic treatment. Defining the facial type of an individual is an essential key to obtain an accurate orthodontic diagnosis. Aim: The aim of this study was to understand the correlation of vertical components in Class II skeletal malocclusion. Materials and methods: This is a observational descriptive study. This study used lateral cephalograms of Class II skeletal malocclusion from Universitas Airlangga Dental Hospital, between April 2015 and 2016. Cephalometric analysis was performed using digital software by a single examiner. This analysis measured gonial (Go), upper gonial (Go 1), lower gonial (Go 2), Yaxis-SN angle, the length of anterior face height, and posterior face height. The correlation between each variable was analyzed using the Pearson correlation test (P<0.01). Results: There was a correlation between vertical components and Class II skeletal malocclusion. Conclusion: Vertical components were correlated with Class II skeletal malocclusion. The greater ANB angle will be followed by greater Go 2 , which worsens the condition of Class II skeletal malocclusion.
IP Indian Journal of Orthodontics and Dentofacial Research, 2019
Aim: To evaluate the validity of Yen, W and Beta angle and to compare it with other commonly used sagittal measurements in Eastern Indian population. Materials and Methods: Sample size of 100 subjects (males-50, females 50, mean age-25.5+-2 years) of indo aryan race were taken from the OPD of the College. The lateral cephalograms were traced for ANB, Wits appraisal, Beta angle, W angle and YEN angle. Lateral Cephalometric Head film was obtained with the patient positioned in Natural Head Position, seated Condyle, and with Passive Lips. The cephalograms were further traced by the same operator, this comprised the Cephalometric database for the study. The final results obtained were compared between Males and Females of the study to verify the acceptable standards of them. Results: There was no statistically significant gender wise difference. Hence a common normative range applicable for both the genders can be proposed. The results show that all five-skeletal cephalometric sagittal analyses i.e. ANB angle Wits analysis, BETA angle, YEN angle and W angle are reliable and can used in different populations without any gross deviations in the findings. Conclusion: Based on the present study, it can be concluded that no statistically significant differences in all parameters were found between the subjects of the Local Palamau population and also between the males and females. From the above statement ANB angle, Wits analysis, BETA angle, YEN angle and W angle can be used as they are reliable. All
IP innovative publication pvt ltd, 2020
Background: Varying number of lateral cephalometric analyses has emerged to analyse the skeletal relationships of jaw in the sagittal plane which is the most necessitate process in any kind of orthodontic diagnosis. Aim: The present study was aimed to calculate the values of different angles (ANB angle, Wits appraisal, BETA angle, YEN angle, W angle and ASB angle) which further aid to assess the anterior-posterior jaw relationship on selected subjects of the local population of Bihar region. Materials and Methods: The research sample comprised of lateral cephalograms of 90 subjects aged between 18-25 years with equal gender distribution from the Department of Orthodontics, Buddha Institute of Dental Science & Hospital, Patna which were grouping further as Class I, II and III skeletal pattern (each consisted of 30 subjects). Results: Mean values for each angle was derived for Bihar population of all three classes and different angles were compared with other previous studies. Conclusion: Apart from certain regular parameters which showed statistically significant differences between subjects of the Bihar population, a new angle i.e. ASB is also taken into consideration which certainly can help in orthodontic diagnosis and treatment planning. Further studies are needed on large scale to establish data for the particular population.
The European Journal of Orthodontics, 2002
The aims of the present study were: (1) to investigate the statistical differences in jaw relationship assessments with the ANB angle and the Wits appraisal in Angle Class III children, and (2) to suggest guidelines for the use of these two parameters in this group of children. Seventy-five Angle Class I children with anterior crowding (male, 37; female, 38) and 96 Angle Class III children with anterior crossbite (male, 38; female, 58) were examined. All had undergone treatment that started at 8 or 9 years of age. Pre-treatment lateral cephalograms were used cross-sectionally for the analysis. The mean age was 8 years 7 months ± 9 months in the Class I subjects, and 9 years 0 month ± 7 months in the Class III subjects. To compare the assessments using ANB angle and the Wits appraisal in the Angle's Class III subjects, nine measured values from each individual subject were converted into Z scores in relation to the means and standard deviations of the two parameters in the Angle Class I subjects. The jaw discrepancy is assessed more severely using the ANB angle than by the Wits appraisal in these Angle Class III subjects. The paired t-test showed that the Z score of the ANB angle was significantly smaller than that of the Wits appraisal (P < 0.001). In Angle Class III subjects with a counterclockwise mandibular rotation and a flattened occlusal plane, the ANB angle is a more critical cephalometric parameter than the Wits appraisal.
In orthodontic diagnosis and treatment planning an accurate evaluation of sagittal jaw relationship is important. To assess the antero-posterior jaw discrepancy between maxilla and mandible, numerous angular and linear measurements have been in corporate so as to reach correct diagnosis. So the purpose of this study is to compare ANB angle, Wits appraisal, Beta angle and W angle used to measure anteroposterior dysplasia and to find out which is the most reliable amongst them. Material and method:
RGUHS Journal of Dental Sciences, 2019
In orthodontics, various methods of assessing sagittal jaw base relationship areformulated.Earlier, skeletal pattern was analysed only clinically, with the introduction of Cephalometrics by Broadbent and Hofrath in 1931, ANB angle and Beta angle are being used to describe skeletal discrepancies between the maxilla and mandible. YEN angle is also used as a sagittal dysplasia indicator after its introduction in 2009. The aim of our study was tocorrelate ANB, Beta and Yen angle with soft tissue profile angle in class I and class II patientsTotal of 140 lateral cephalograms of class I and class II patients were selected based on soft tissue profile angle. In each cephalogram, ANB, Beta and YEN angle were measured and compared with soft tissue profile angle. Statistical analysis carried out. Our study concluded that soft tissue drape in both Class I and class II individuals are not significantly correlated with skeletal alignment of maxilla and mandible.
Dental Journal of Advance Studies, 2021
Introduction Sagittal skeletal discrepancies are frequently assessed by Wits appraisal and point A–Nasion–point B (ANB) angle. These angular and linear measurements depend upon various factors and sometime produced inaccurate results. Beta angle has been introduced recently and possesses significant advantage over ANB and Wits appraisal, because it is independent of cranial landmarks and dental occlusion. Aim To evaluate and correlate beta angle in various skeletal malocclusions and its correlation with Wits appraisal and ANB angle. Material and Methods The present study was carried out in Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India. A total of 63 pretreatment lateral cephalograms (23 skeletal class I, 20 skeletal class II, and 20 skeletal class III) of patients aged between 14 to 25 years were included. Various landmarks and planes were identified and marked. Values of Wits appraisal, ANB angle, and beta angle were recorded. Comparisons of group were made wit...