Our purpose was to determine in 20 unilateral cleft lip and alveolus subjects characteristics of the maxillary permanent teeth and maxillary arch development. Clinical and radiographic examinations have been carried out to identify congenitally missing teeth and sagittal skeletal patterns. Study cast assessment was undertaken to evaluate mesiodistal widths of individual teeth, intercanine and i...

OBJECTIVE To compare dental arch dimensions and arch forms in various vertical facial patterns. STUDY DESIGN Cross-sectional comparative study. PLACE AND DURATION OF STUDY The Aga Khan University Hospital, Karachi, from June 2007 to May 2008. METHODOLOGY Cases of age ranging 13-30 years were reviewed having full complement of teeth (upto second permanent molars) with less than 7 mm crowdi...

BACKGROUND The accuracy and reproducibility of measurements in a locally made three dimensional (3D) simulator was assessed and compared with manual caliper measurements. MATERIALS AND METHODS A total of 20 casts were scanned by our laser scanner. Software capabilities included dimensional measurements, transformation and rotation of the cast as a whole, separation and rotation of each tooth ...

BACKGROUND Hallermann in 1948 and Streiff in 1950 described patients characterised by "bird face", congenital cataract, mandibular hypoplasia, and dental abnormalities. The new syndrome was later defined as Hallermann-Streiff Syndrome (HSS), underlining the differences with regard to Franceschetti's mandibulofacial dysostosis. CASE REPORT Examination of a white male affected by Hallermann-Str...

Although impacted canines concerning dental arch have been analyzed in prior studies. However, there is a lack of evidence to analyze the impact on characteristics using cone beam computed tomography (CBCT) models; therefore, knowing can enhance awareness, contribute knowledge, and aid clinicians managing canine cases. Hence, it critical emphasize strategies proper diagnosis interception for th...

intra-oral appliances such as transpalatal arch and nance appliance fail to resist against forces that tend to loosen the anchorage. the infirmity arises due to the long lever arm and the mesial force that is perpendicular to the long axis of the appliance. the butterfly arch is presented here as an intra-oral appliance that withstands the mesially directed forces with a mechanism that puts str...

BACKGROUND Both maxillary protraction and rapid expansion are recommended for patients with cleft palate and alveolus. The aim of the study is to establish a three-dimensional finite element model of the craniomaxillary complex with unilateral cleft palate and alveolus to simulate maxillary protraction with and without rapid maxillary expansion. The study also investigates the deformation of th...

INTRODUCTION This study assessed the three-dimensional changes in the dental arch of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusions at three different periods. METHODS Landmarks previously identified on upper and lower dental casts were digitized on a three-dimensional digitizer MicroScribe-3DX and stored in Excel worksheets in order to assess th...