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Mandibular antegonial notch depth distribution and its relationship with craniofacial morphology in different skeletal patterns | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 21, Issue 1, 2009, Pages 107-111 | ||
| Authors | ||
| Ausama A. Al-Mulla; Yassir A. Yassir | ||
| Abstract | ||
| ABSTRACTBackground: Antegonial notch is a small concavity at the inferior surface of the mandible. The purpose of this study isto identify the distribution of mandibular antegonial notch depth and its relationship with craniofacial morphology indifferent skeletal patterns.Materials and method: The sample included 191 pretreatment digital lateral cephalometric radiographs (93 males,98 females) collected from the Orthodontic Department in the College of Dentistry, University of Baghdad. Thesample was divided into three groups according to the skeletal classes, and then each group divided according todepth of mandibular antegonial notch into: shallow, medium, and deep groups. Sixteen angular and thirteen linearmeasurements were used.Results: Cl I had the highest percentage of medium antegonial notch. Cl II had the highest percentage of deepnotch, while Cl III had the highest percentage of shallow notch. Males had significantly deeper notch than females inCl I and Cl II. Significant difference found between males skeletal Cl II and Cl III. The craniofacial measurementsshowed significant changes with the increase in antegonial notch depth variably in different classes.Conclusions: Angular measurements of cranial base more concerned with mandibular morphology than linearmeasurements. The increase in vertical growth pattern and backward rotation of the mandible in association withthe increase in notch depth appeared particularly in skeletal Cl II.Keywords: antegonial notch, craniofacial morphology, skeletal patterns. (J Bagh Coll Dentistry 2009; 21(1): 107-111) | ||
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