Background: Electronic gadgets are indispensable part of our life which has reached every doorstep across the globe. With advancing age the use of mobile phones have drastically increased and people spend long hours on their gadgets which has led to several musculoskeletal problems. Constant head down posture and improper alignment of head and neck attained during usage leads to permanent damage in cervical spine such as flattening of spinal curve, early onset of arthritis, spine degeneration, disc compression and herniation. The term text neck can be described as repetitive stress injury and pain sustained from excessive use of handheld devices. Lack of awareness and negligence amongst the young population text neck syndrome can result in inflammation of neck ligaments, muscle and nerves leading to permanent changes. This study aims to find out the effects of providing awareness regarding text neck syndrome and it preventive measures while using hand held device.Methods: 218 young healthy adults were pre given a pre-test regarding the awareness of text neck syndrome, later they were given an information brochure. Following this, the participants were given a post-test to check the effect of providing information regarding Text neck syndrome.Results: Results of the study revealed that there was significant improvement in post test score as compared to pre-test using paired t test (p value >0.05).Conclusions: There was lack of awareness regarding the syndrome and its preventive measures, after appropriate providing information, awareness were established in the young adult population.
Palatal expansion has a unique role in dentofacial therapy. The rapid Maxillary expansion which is a type of skeletal expansion involves the opening of the mid-palatal suture and movement of the palatal shelves away from each other. Selection of appropriate appliance should be made by preparing a list of criteria depending on the biomechanical requirements of RME. Rapid expansion affects the maxillary complex, palatal vaults, maxillary teeth, adjacent periodontal structures to get desired expansion in the maxillary arch. Maxillary transverse deficiency in adults is a malocclusion of relatively high prevalence in orthodontics. The rapid maxillary expansion (RME) surgically assisted is considered the preferred procedure to correction of this alteration in patients skeletally mature. This review discusses the types of palatal expansion and skeletal and soft tissue effects of palatal expansion.
Introduction
Sagittal jaw relationship is one of the basic criteria assessed for orthodontic diagnosis. ANB angle, Wits appraisal, and Beta angle are the most commonly used measures. Yen angle and W angle have been recently introduced. It was necessary to assess their predictability by comparing them with routinely used sagittal jaw indicators.
Aim
To assess Yen angle and W angle and compare them with ANB angle, Wits appraisal, and Beta angle in predicting sagittal jaw dysplasia.
Materials and methods
A total of 40 lateral cephalograms of class I malocclusion subjects were selected and traced as per the inclusion criteria. ANB angle, Wits appraisal, Beta angle, Yen angle, and W angle were measured and compared with each other. Statistical analyses used were independent t-test, Pearson's correlation coefficient, sensitivity, specificity, and accuracy.
Results
ANB angle, Wits appraisal, Beta angle, Yen angle, and W angle all show a significant correlation with each other. Yen angle and W angle show best correlation with ANB angle showing 100% sensitivity. The values of specificity and accuracy of Yen angle with ANB angle are 73.7 and 81.48% respectively, and that of W angle with ANB angle are 44.4 and 67.74% respectively.
Conclusion
Yen angle and W angle show a good correlation with each other and with other three measures. Both the angles show highest correlation with ANB angle and the least correlation with Wits appraisal. Yen angle shows stronger correlation with ANB angle than W angle. Yen angle and W angle can be used to assess sagittal jaw dysplasia in addition to the established angles.
How to cite this article
Kapadia RM, Diyora SD, Shah RB, Modi BN. Comparative Evaluation of Yen Angle and W Angle with ANB Angle, Wits Appraisal, and Beta Angle for Predicting Sagittal Jaw Dysplasia: A Cephalometric Study. Int J Clin Dent Res 2017;1(1):26-31.
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