COMPARISON BETWEEN THE WITS APPRAISAL , THE BETA ANGLE & YEN ANGLE IN ASSESSING THE ANTERO-POSTERIOR JAW RELATION: A CEPHALOMETRIC STUDY

Madhuri Chandak, Sujoy Banerjee, Usha Shenoy, Pankaj Akhare, Ananya Hazarey, Himija Karia, Sangeeta Bhattacharya

Abstract


AIM

To compare the wits appraisal, beta angle & YEN angle in assessing the antero-posterior jaw relation.

 

OBJECTIVE

 To compare the wits appraisal beta angle & YEN angle in assessing the antero-posterior jaw relation.

 

MATERIAL & METHOD

 Standardized pre-treatment lateral cephalograms (Kodak 8000c (G-XR-29461) machine) of 60 subjects were divided into 3 group i.e. Class I, Class II and Class III according to their ANB angle. Age ranges from 18 years to 25 years. All the cephalograms were traced on 0.003 inch acetate paper using a 0.5 mm lead pencil. All the tracing was performed by the principle investigator. Reliability of the measurement was calculated using intra-class correlation test. The value was obtained as 0.82.

 

RESULT

 Statistically significant correlation were found among all the four  measurments; ANB angle, WITS appraisal, BETA angle and YEN angle. It  shows  higher correlation with  ANB angle, whereas least correlation with WITS appraisal. YEN  angle shows better values of specificity & accuracy with the ANB angle.

 

CONCLUSION

YEN angle can be used to assess sagittal jaw discrepancy in addition to the established one.


Keywords


YEN Angle , Wits Appraisal , Cephalometry , Malocclusion , Jaw Relation

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