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:: Volume 25, Issue 1 (1-2013) ::
J Iran Dent Assoc 2013, 25(1): 16-20 Back to browse issues page
Evaluation of Correlation between Wits’ Appraisal and a New Method for Assessment of Sagittal Relationship of Jaws
Zohreh Hedayati * 1, Somayeh Heidari2 , Farzaneh Khaje3
1- Orthodontic Research Center, Associate Professor and Head of Orthodontic Department, School of Dentistry, Shiraz University of Medical Sciences. Shiraz, Iran , hedayatz@yahoo.com
2- Assistant Professor, Department of Orthodontic, School of Dentistry, Bushehr University of Medical Sciences. Bushehr, Iran
3- Orthodontic Research Center, Assistant Professor, Department of Orthodontic, International Branch, Shiraz University of Medical Sciences. Shiraz, Iran
Abstract:   (10614 Views)
  Background and Aim : Although Wit’s appraisal is a valuable measurement for antero-posterior jaw relationship evaluation in orthodontic patients, occlusal plane detection is difficult in a lot of cases or is challenging due to its various inclinations. In this study a new method for assessment of sagittal skeletal relationship is introduced and the purpose of this investigation is evaluation of correlation between wit’s appraisal and this new method . 

  Materials and Methods : Lateral cephalograms of 71 orthodontic patients (male and female) from all types of skeletal malocclusions (class I, II, III) were collected and analyzed. Two lines were traced from point A and point B while they were perpendicular to Frankfort Horizontal plane (FH) and also to functional occlusal plane (Wit's) and the bothdistances were measured. Pearson Correlation analysis was performed for assessment the relationship between AO´-BO´ distance on FH (q) and wit’s appraisal. Correlation of these variables was evaluated with SNA, SNB, ANB and overjet, separately .

  Results : The results showed a high correlation of variables using Frankfort Horizontal plane and wit’s appraisal (r= 0.82). Both methods revealed significant statistical relation with SNA, SNB, ANB and overjet (p< 0.05). The highest scores of correlation with ANB were obtained in using both methods .

  Conclusion The use of measurement is as much valuable as the usual wit’s measurement and it can be a good alternative in patients when tracing the accurate occlusal plane is impossible or difficult.

 

Keywords: Wit’s appraisal, Functional occlusal plane, Frankfurt plane
Full-Text [PDF 197 kb]   (3118 Downloads)    
Type of Study: Original | Subject: Orthodontics
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Hedayati Z, Heidari S, Khaje F. Evaluation of Correlation between Wits’ Appraisal and a New Method for Assessment of Sagittal Relationship of Jaws. J Iran Dent Assoc 2013; 25 (1) :16-20
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Volume 25, Issue 1 (1-2013) Back to browse issues page
Journal of Iranian Dental Association

AWT IMAGE

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