RELIABILITY AND VALIDITY OF MAXILLARY AND SPHENOID SINUS MORPHOLOGICAL VARIATIONS IN THE ASSESSMENT OF SKELETAL MATURITY

Authors

  • Hafiz Taha Mahmood BDS Resident Orthodontics, Section of Dentistry, Department of Surgery, The Aga Khan University Hospital, P.O Box 3500, Stadium Road, Karachi 74800, Pakistan
  • Attiya Shaikh BDS, M. Orth & FCPS (Orthodontics) Consultant Orthodontist/ Assistant Professor Liaquat College of Medicine and Dentistry
  • Mubassar Fida

Abstract

Background: The present study aimed at assessing the relationship between growth changes in maxillary (MS) and sphenoid sinus (SS) and cervical vertebral maturation (CVM) and to evaluate their reliability and validity in assessing the skeletal maturity of an individual. Methods: A cross-sectional study was conducted on the pretreatment lateral cephalograms of 224 patients (males=116, females=108) aged 8–17 years. MS and SS heights, widths and indices were evaluated. The subjects were classified according to six stages based on CVM using Baccetti’s method. Kruskal-Wallis test was applied to compare MS and SS measurements at different cervical stages for each gender. Kappa statistics, positive predictive value, negative predictive value, sensitivity and specificity were calculated to test the diagnostic accuracy of MS and SS indices. Results: The MS and SS indices varied significantly (p<0.001) at different cervical stages for both gender. Kappa statistics showed significant agreement using MS (p<0.001) and SS indices (p<0.05). The diagnostic performance of MS index (Sensitivity ≥71%) was found to be better than SS index (Sensitivity ≥65%). Conclusions: The MS height, width and index in both genders and SS height, width and index in males and only SS width and index in females were significantly associated with the CVM stages. The validity of MS and SS indices were comparable for females; whereas, the MS index offers significant advantage over SS index for the assessment of growth status of males.Keywords: Maxillary Sinus; Sphenoid Sinus; Cervical Vertebral Maturation

Author Biographies

Attiya Shaikh, BDS, M. Orth & FCPS (Orthodontics) Consultant Orthodontist/ Assistant Professor Liaquat College of Medicine and Dentistry

Consultant Orthodontist/ Assistant ProfessorLiaquat College of Medicine and Dentistry

Mubassar Fida

BDS, MCPS & FCPS (Orthodontics), MCPS (Periodontology),MCPS (Community Dentistry), PGD HIMSConsultant Orthodontist/Associate Professor,Section of Dentistry, Department of Surgery,The Aga Khan University Hospital, P.O Box 3500, Stadium Road, Karachi 74800, Pakistan

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2018-09-18

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