Abstract
Aims: To compare the anterior and posterior facial heights among the sexes and total sample. Mean while; to find the facial height variations among the Class I, II and III dentoskeletal groups. Materials and Methods: The sample comprised of 32 lateral cephalometric radiographs (16 for each sex) for each of the Class I, II and III dentoskeletal relationships. The age of the sample subjects was 15–20 years. The lateral cephalometric radiographs were traced. The total, upper and lower anterior facial heights and the total, upper and lower posterior facial heights were measured. Results: No significant differences among the both sexes and total sample for the dentoskeletal groups were demonstrated. All the facial heights appeared significantly greater in Class II group than Class I group except upper anterior, upper posterior and lower posterior facial heights and was significantly higher than Class III group in upper anterior, lower anterior and upper posterior facial height. Class III group displayed significantly lower value in total facial height than Class I group and significantly larger value in lower posterior facial height than of Class I group and Class II group. Conclusion: The facial heights are not affected by the sex variation, but there are certain variations in facial heights among the dentoskeletal groups.
Highlights
The facial heights of young adult subject are regarded a potential determinant in developing the facial harmony and the esthetic
The sample consisted of 96 lateral cephalometric radiographs for the patients of Classes I, II and III dentoskeletal relationship, of age 15–20 years, for Iraqi subjects live in Mosul City, who were attending the Pedodontics, Orthodontics and Preventive Dentistry Department, Dentistry College, Mosul University
The data were analyzed by using the descriptive analysis including the mean, standard deviation, minimum and maximum values and the analysis of variance (ANOVA) and Duncan’s Multiple Range Test analyses were applied to detect the variances of these parameters among male, female and total sample in addition to find the variances among the Classes I, II and III groups
Summary
The facial heights of young adult subject are regarded a potential determinant in developing the facial harmony and the esthetic. They are essential factors in designing the facial type. The upper face is under the influence of the cranial base inclination It moves upward and downward, the lower face moves downward and forward, the divergent growth pattern permits vertical growth of the dentoalveolar component.[1]. Woodside[5] reported that the mandible showed significant growth spurts in the prepubertal and pubertal periods. In his study, he pointed out that the good growth spurts seem to be sex–linked. The greatest increments of growth are actual at 3 years age level, the second peak is formed at 6–7 years in girls and 7–9 years in boys, the third peak is at 11–12 years in girls and 14– 15 years in boys
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