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The purpose of this study was to evaluate the orthopedic effects of reverse headgear therapy in children with skeletal Class III malocclusions. Data based on pretreatment and posttreatment lateral cephalometric radiographs of seven boys and five girls, ages 4 through 14 years, were used. Comparison of the pretreatment and posttreatment cephalograms revealed(More)
Previous research has suggested both links and differences between children's copying of line diagrams and their drawings of solid objects. If the diagram represents a familiar object, children make more errors than when copying a diagram of a nonobject or unfamiliar object, as if they are drawing from their representation of the object rather than copying(More)
The influence of the third molars on the alignment of the anterior dentition is controversial. There is no conclusive evidence to indict the third molars as being the major etiologic factor in the posttreatment changes in incisor alignment. Various aspects related to the management of thd molars are discussed, and specific situations in which third molar(More)
When the Siamese edgewise bracket with continuous arch wires is used, it does not always follow that with 100 to 150 Gm. of applied force only the canine and not the buccal segment or anchor unit will move. Conversely, it does not always follow that with 400 to 500 Gm. of applied force only the buccal segment or anchor unit will move forward and the canine(More)