Comparison of Different Sagittal Dysplasia Indicators in a Sample from Syrian Population (original) (raw)
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Background: This study aimed to evaluate the relationship between Iraqi method used for assessing the sagittal skeletal relationship with other popular methods. Materials and methods: The sample included 60 digital true lateral cephalometric X-rays selected from the files of the patients attending the postgraduate Orthodontic clinic in the College of Dentistry/ University of Baghdad with an age raged between 18-30 years. The sample classified according to ANB angle into three skeletal classes. One angular and three linear parameters were measured using AutoCAD program. Descriptive statistics were performed for each variable and Pearson's correlation coefficient was obtained to determine the relationship between the variables in the study. Results: The results showed direct significant relation between FMO with ANB angle and Wit's appraisal and non-significant relation with MVI. Conclusion: FMO was correlated significantly with ANB and Wit's appraisal so it can be used in conjunction or as a substitution to these measurements.
Comparative assessment of sagittal skeletal discrepancy: a cephalometric study
Journal of clinical and diagnostic research : JCDR, 2015
Evaluating the sagittal apical base relationship during orthodontic diagnosis and treatment planning is an important step. This study was aimed at comparison of Beta angle, ANB angle and Wit's appraisal for assessment of sagittal skeletal discrepancy. Eighty six young adults (43 female and 43 male) were selected from the patient's reporting to Department of Orthodontics, College of Dental Sciences, Davangere, India. Family lineage was studied to know the nativity of Davangere. The standardized pre-treatment lateral cephalogram of the chosen sample was traced. The sample was divided into three skeletal pattern groups: Class I, Class II and Class III, based on the ANB angle and profile, Beta angle was assessed in each group. The data was subjected to statistical analysis student's t-test, ANOVA test and correlation and regression analysis, using the software namely SPSS Software version 13. Microsoft word and Excel were used to generate graphs and tables. In the local Dava...
2012
Introduction: - An accurate evaluation of sagittal jaw relationship is important in orthodontic diagnosis and treatment planning. Numerous angular and linear measurements have been incorporated to assess the antero-posterior jaw discrepancy between maxilla and mandible so as to reach the correct diagnosis. So the purpose of this study is to compare ANB angle, Wits appraisal, Beta angle, YEN angle and W-angle used to measure antero-posterior dysplasia and to find out which is the most reliable amongst them. Material and Method: - Sample comprised of 45 pre-treatment lateral cephalograms which were divided into 3 groups: Group I-Class I skeletal pattern (n=15), Group II- Class II skeletal pattern (n=15) and Group III - Class III skeletal pattern (n=15) Results: - ANOVA analysis was performed and highly significant differences were found in Beta angle, Yen angle and W-angle in all the three Groups (Group I, Group II, and Group III). Conclusion: - Thus it has been concluded from the stu...
The Journal of Contemporary Dental Practice
Aim: Diagnosis in orthodontic cases and treatment planning is a precise assessment of sagittal jaw relationship. A number of angular and linear measurements have been used to attain correct diagnosis. The present study is done to compare beta angle and A point-nasion-B point (ANB) angle for sagittal skeletal discrepancies. Materials and methods: A total of 105 subjects were included in between the age group of 18 and 24 years and were categorized based on the skeletal patterns as class I, class II, and class III having a sample of 35 in each group. Based on the ANB angle and patients' profile, the sample was divided into different skeletal groups. Beta angle is the angle amid the perpendicular from C to B line through point A and the A-B line. Analysis of variance (ANOVA) and post hoc Scheffe's test were applied to analyze dependent variables. The level of significance was set at p-value 0.05. Results: The mean scores of ANB for class I skeletal pattern were 2.46 ± 0.460, for class II, 5.64 ± 1.258, and for class III,-1.03 ± 1.618. Similarly, significant differences were observed in beta angle for class I skeletal pattern as 31.71 ± 3.885, for class II, 24.97 ± 2.162, and for class III, 39.26 ± 3.649. Conclusion: Both ANB and beta angle showed significant differences with different skeletal patterns. Clinical significance: Both ANB and beta angle are awfully supportive diagnostic measurements to scrutinize sagittal jaw relationship.
Reliability of beta angle in determination of sagittal skeletal discrepancy in class II patients
Pakistan Orthodontic Journal, 2016
Introduction: The debate over an ideal variable to judge the anteroposterior discrepancy has continued over years. The objective of this study was to view the correlation between Beta angle and ANB and to assess whether Beta angle can be used as a guide to assess the severity of skeletal sagittal dysplasia in Class II subjects. Material and Methods: 97 subjects with mean age of 16.49± 4.63, who presented to Orthodontics Department at Armed Forces Institute of Dentistry with CVM 4, skeletal Class II, having variations in vertical facial patterns and condyles visible clearly on digital radiographs were selected. The Beta angle and ANB were hand traced by four different post graduate trainees on lateral cephalograms and rechecked. Mean, SD, were calculated for age, SNA, SNB, ANB and Beta angles. ANB and Beta angles were evaluated by Pearson correlation test and cross-tabulation was done for the two variables. Results: Means calculated for the variables were as follows: age was calculat...
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.
Journal of clinical and diagnostic research : JCDR, 2016
The lateral cephalometric skeletal discrepancy indicators play a major role in diagnosing and preparing a case for orthognathic surgeries and the dentofacial corrections. The study was aimed to check the reliability and the predictability of different anterio-posterior skeletal discrepancy indicators in different age groups and to derive the most reliable indicator for the orthodontic diagnosis. A cross-sectional study was conducted on a sample of 100 subjects including 29 adolescent (15 males and 14 females) and 71 adult (41 males and 30 females) subjects with the mean age of 19.05 ± 5.78 years. All the subjects had Angle's Class I molar relationship. The lateral cephalograms of the sample were taken under the standard setting and hand tracing of the cephalometric radiographs using a sharp 4H pencil were made on acetate tracing paper. The anterio-posterior cephalometric indicators like β-angle, Wits appraisal (mm), Sella- Nasion plane to Point A and Point B distance (SN-AB mm) ...
Journal of Pharmaceutical Research International, 2021
Objective: The study aimed to compare the reliability of different cephalometric angles like the Beta, Yen, W and Pi angles to evaluate sagittal dysplasia in various skeletal patterns and assess the correlation between the variables. Materials and Methods: 135 pre-treatment lateral cephalograms were taken and further divided into Class I, Class II and Class III groups. Each group had equal samples of 45 (n=45), based on ANB angle using Nemoceph software. Cephalometric landmarks Pi, Yen, Beta and W angle were identified and measured. Statistical analysis was done using the ANOVA test followed by Correlation coefficient analysis. Results: Pi angle was highly predictable for differentiating class I cases, with 91.1% accuracy. Whereas in class II cases Pi and Beta angle were found to be most predictable with 73% and 66% accuracy respectively, while in class III cases Yen angle was found to be most predictable with 88% accuracy. Conclusion: Overall Pi angle is considered the most reliabl...
FSA Angle: A Soft Tissue Approach for Assessing Sagittal Skeletal Discrepancy
International Journal of Clinical Pediatric Dentistry
Introduction: Lateral cephalograms are taken as a diagnostic aid for the evaluation of the anteroposterior relationships. The assessment of anteroposterior soft tissue relationships is by using skeletal points and cranial reference planes. The anteroposterior relationships are, however, clinically affected by soft tissue structures. In this pilot study, we aim to assess the anteroposterior relationships based on soft tissue landmarks. Materials and methods: Lateral cephalograms were collected from 100 patients and evaluated on Facad software. The subject consisted of a mean age of 20 ± 7 years. Fifty-four cephalograms selected were used to perform the analysis. A new angle FSA was measured based on soft tissue landmarks. A new plane used for this analysis is the SA plane. Using this angle, we classified the cephalograms as class I, II, and III. Results: There is a statistically significant value to differentiate the profile of patients using the FSA angle. Thus, this new angle is created to determine the anteroposterior soft tissue relationship using soft tissue landmarks on a cephalometric analysis and from our data, the value was 81 ± 7.57° for class 1 patients that is consistent with the previous studies which evaluate sagittal skeletal relationships. Conclusion: There are various difficulties and errors in the previous analysis that is used to determine the anteroposterior jaw relations. Skeletal landmarks have been used previously and most of these points are not stable points. Thus, this new analysis that will be using soft tissue landmarks can be used to differentiate in the various profiles of patients with different malocclusions.
International Journal of Applied Dental Sciences, 2020
Introduction: ANB angle is the most commonly used measurement for assessing sagittal jaw discrepancy, however various new measurements have been introduced recently to overcome some inherent deficiencies associated with ANB angle, so it becomes necessary to compare their reliability and predictability with routinely used methods like ANB angle. Aims and objectives: To assess the reliability and comparison of ANB angle over other newly introduced linear cum angular skeletal and occlusal cephalometric parameters. Materials and Methods: A total of 60 lateral cephalograms of class I, class II, class III subjects were selected and traced as per inclusion criteria. ANB angle was measured and compared with other methods and reliability was checked and comparisons were made in each class. Results: The results showed that there was statistically significant and highly correlated relationship between ANB angle and other parameters used in the study for assessment of sagittal jaw relationship....