ABSTRACT
This study investigated the effect of orthodontic treatment for surgically repaired complete unilateral cleft lip and palate cases. Their average age at the beginning of treatment was 13.7 years. The effect of treatment was determined based upon the pre-treatment and post-treatment records especially the dental study casts and tracings from the lateral cephalometric radiographs.Nine arch dimensions on the dental casts were measured. There was significant increase in the maxillary arch width and depth, whereas the mandibular arch width showed significant increase in the intercanine and inter-first premolar widths only. The cross-bite was orthodontically corrected in all except one where the maxilla required surgical advancement The cephalometric analysis showed a great improvement in the axial inclination of the maxillary incisors and the interincisal angle. There was significant opening of the bite as evidenced by the increase in the mandibular plane angle. The soft tissue profile showed slight improvement, only the lower lip protrusion have been significantly reduced. Generally, the profile remained flattened than normal
Subject(s)
Cleft Palate , Cleft Lip , Orthodontics, CorrectiveABSTRACT
A radiographic cephalometric study was performed on a group of Egyptian University students. The subjects included 100 males and 100 females, between 18 and 25 years of age and with clinically acceptable occlusion and harmonious facial features. None of them had undergone orthodontic treatment. The object of this study is to establish craniofacial and soft tissue standards to be used by the clinicians on the Egyptian population. Twenty two angular measurements, thirteen linear measurements, and three ratios were established covering the most significant skeletal, dental and soft tissue parameters. The data obtained is presented in a convenient clinical table to assist orthodontists in diagnosis and treatment planning