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...

The purpose of this study was to evaluate the occlusion and maxillary dental arch dimensions in adults with repaired complete unilateral cleft lip and palate (UCLP) and to investigate the patterns of change in early adulthood. Study models from 39 patients (25 men, 14 women; mean age 24.7 years, range 20.2-29.3 years) with a diagnosis of complete UCLP taken at a follow-up examination were analy...

OBJECTIVE To compare the vertical facial and dental arch dimensional changes occurring with extraction and nonextraction orthodontic treatments. STUDY DESIGN Cross-sectional comparative study. PLACE AND DURATION OF STUDY The Aga Khan University Hospital, Karachi during the period 2003 to 2005. METHODOLOGY Data were collected using records of patients who visited the study setting during t...

In order to reduce the amplitude of bench press, athletes use a specific technical element "arch", which involves significant bending back. The "arch" allows indicators mechanical work, amount applied force, trajectory vertical movement bar and distance travelled by bar. problem using an extremely high press arch during is important task modern sports practice. goal study ways objectifying rule...

OBJECTIVE Evaluation of the effect of infant orthopedics on maxillary arch dimensions in the deciduous dentition in patients with unilateral cleft lip and palate. DESIGN Prospective two-arm randomized controlled clinical trial with three participating cleft palate centers. SETTING Cleft palate centers of the Radboud University Nijmegen Medical Center, Academic Center of Dentistry Amsterdam,...

Introduction. Class III malocclusions are characterized by a more prominent lower jaw compared to the upper and skeletal dentoalveolar relationship according Angle. In scientific literature, there is small amount of data on morphological characteristics malocclusion in different populations, so justified need examine population Vojvodina. The aim this study was determine malocclusions, compare ...

The mean wake structures of a cube (square cylinder) and circular cylinder height-to-width aspect ratio 1.0, at Reynolds number 1.78 × 104 based on the obstacle width, were investigated experimentally. boundary-layer thickness was 0.14 height. study performed using thermal anemometry two-dimensional digital particle image velocimetry (DPIV). Streamwise observed in for both cylinders included we...

Tunnel construction in China is increasing year by year. With the passage of time, will usher peak period tunnel engineering repair, and it vital to study advance influential nature lining crack disease as well management measures. By summarising a large amount relevant literature, this paper analyses main locations where cracks are generated linings. Through method finite element numerical ana...

objectives: proper diagnosis and prevention of malocclusion are superior to treatment. discrepancy between arch length and tooth size in mixed dentition period is a condition requiring timely diagnosis. estimating the mesiodistal width of unerupted teeth according to the size of erupted ones can lead to earlier diagnosis of malocclusion. on the other hand, the best timing for serial extractions...