To compare maxillary first molar anchorage loss between 0.018-inch and 0.022-inch slot fixed appliance systems.
Patients requiring bilateral maxillary premolar extractions (n = 74) within a randomized clinical trial comparing the effectiveness of 0.018-inch and 0.022-inch slot MBT bracket systems (3M-Unitek, Monrovia, Calif) were included. Three-dimensional pre- and posttreatment digital models were landmarked and me
This study aimed to determine the sagittal lip position and some of the factorsaffecting it regarding the gender differences, and their correlations in a sample of Iraqiadults.Sixty two participants (37 females and 25 males) collected among dental studentshaving Cl I skeletal and occlusal relations and full permanent dentition regardless thethird molars were chosen for this study. Each person was subjected to clinicalexamination and digital true lateral cephalometric radiograph. The radiographs wereanalyzed by using AutoCAD 2007 computer program to measure the sagittal lipposition using the soft tissue analyses of Steiner, Burstone, Ricketts, Sushner,Holdaway, and Merrifield. Descriptive statistics were obtained from themeasurements
... Show MoreThis study was planned to compare some of the soft tissue measurements inindividuals with skeletal Cl I and Cl III, to find out the measurements which may beused as a clinical diagnostic aid to discriminate between both skeletal classes.Seventy three digital true lateral cephalometric radiographs of Iraqi adults weredivided according to the ANB angle into 38 skeletal Cl I and 35 Cl III. The soft tissuemeasurements were analyzed using AutoCAD (2007) software computer program.Descriptive statistics were used to describe the measurements, while independentsamples t-test was used to rule out gender differences and skeletal class differences.Gender differences were found significantly in skeletal Cl I for all linearmeasurements; while in
... Show MoreTo measure the size and describe the morphology of sella turcica on true lateralcephalometric radiographs; and to determine if there is any statistical significantdifference in the size of sella turcica regarding the genders and skeletal classes.The sample included 130 pretreatment digital lateral cephalometric radiographs(67 female and 63 males) with an age range between 17-25 years, collected from theOrthodontic Department in the College of Dentistry, University of Baghdad. Thesample was divided according to ANB angle into 3 skeletal classes. The size of sellaturcica (length, depth, and diameter) was measured and its morphology wasdetermined. Frequency distribution and percentage described the morphology,independent samples t-test
... Show More