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Correlation of Variables for WHARFE Assessment and Pederson Difficulty Index for Impacted Mandibular Third Molar
M Ravi Sekhar1, Swapnil Singh1, Rathna Valluri1
1Department of Oral and Maxillofacial Surgery, Daswani Dental College and Research Centre, Kota, India.
Objectives:
To assess the correlation of factors of WHARFE assessment and Pederson difficulty index for impacted mandibular third molar surgery.
Study Design:
A comparative study of difficult factors utilizing Pederson WHARFE and WAR lines was performed involving patients undergoing surgical removal of mandibular third molars for 100 such teeth.
Results:
The Spearman's rho correlation run to determine the relationship between Pederson difficulty index and WHARFE assessment values showed a strong, positive monotonic correlation at the 0.05 level (2-tailed; rs = 0.242, n = 100, p = 0.015 < 0.05).
Conclusion:
The study has revealed WHARFE assessment to be a more reliable and consistent measure for the radiological evaluation of surgical difficulty over the contemporary Pederson difficulty index.
