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The morphology and texture of Iraqi skeletal class II young adults (Cephalometric study) | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 23, Issue 3, 2011, Pages 137-143 | ||
| Authors | ||
| Nagham Al-Mothaffar; Raoof R. Toma | ||
| Abstract | ||
| ABSTRACTBackground: Different studies concerning craniofacial morphology of skeletal Class II have reported a lot ofcontroversies in their results. The aim of the present study is to study the types of class II that can be found what arethe texture and craniofacial growth pattern in each type rather than in the loose context of "Class II".Materials and methods: The skeletal class II sample included 104 pretreatment digital lateral cephalometricradiographs (18-30 years) who were selected on the basis of Beta angle [<27°] and divided into five groupsaccording to the location of maxilla and mandible in relation to the anterior cranial base (SNA and SNB angles).Another 30 radiographs were selected as a control group (normal SNA and SNB angles, Beta angle 27°-35°). Fourteenangular and nine linear measurements were digitized and recorded using AutoCAD 2010 computer program.Results and conclusions: In comparison with skeletal class I, skeletal class II had no significant difference in anteriorand posterior cranial base lengths and facial heights. The individuals with othognathism of upper jaw andretrognathism of lower had the highest anterior facial height and the least mandibular base length, while those withprognathism of upper jaw with orthognathism of lower had the highest gonial angle with least articular angle.Combination of prognathism of maxilla with retognathism of mandible showed vertical growth pattern with mostconvex profile. Retrognathism of both upper and lower jaws appeared in individuals with highest saddle and palatalplane angle with the least gonial angle, while individuals with prognathism of both jaws showed horizontal growthpattern with highest posterior facial height and least mandibular plane angle and anterior facial height.Key words: Skeletal class II, class II, cephalometrics. (J Bagh Coll Dentistry 2011;23(3): 137-143). | ||
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