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Medicine and Health Sciences

Electronic Thesis and Dissertation Repository

2015

ANB angle

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An Evaluation Of The Constructed Frankfort Mandibular Plane Angle Bisector (Cfmab) Wits' Appraisal In The Assessment Of Anteroposterior Jaw Relationships, Derek R. Tomson Nov 2015

An Evaluation Of The Constructed Frankfort Mandibular Plane Angle Bisector (Cfmab) Wits' Appraisal In The Assessment Of Anteroposterior Jaw Relationships, Derek R. Tomson

Electronic Thesis and Dissertation Repository

For proper orthodontic diagnosis and treatment planning, an accurate measurement of the relationship of the maxilla to the mandible in the sagittal plane is required. The ANB measurement has long been the gold standard for explaining this association. The purpose of this longitudinal study was to evaluate three linear measurements of the maxillomandibular anteroposterior relationship and determine which one best correlates with ANB. The constructed Frankfort horizontal-mandibular plane angle bisector (cFMAB-Wits), maxillomandibular bisector (MMB-Wits), and Frankfort-mandibular plane angle bisector (FMAB-Wits) were measured using a Wits’-type analysis and compared to ANB.

Pre-treatment (TO), immediate post-treatment (T1), and two years post-retention (T2) …