Kragt, Gerrit Duterloo, Herman S. Algra, Annemiek M.
Published in
American Journal of Orthodontics
In this study eight macerated, human child skulls (dental age approximately 9.5 years) were subjected to a standardized high-pull headgear traction system. Tensile forces from 0.5 to 3.5 N (1 N = 0.1 kgf) per side were produced to the maxillae. Displacements of skeletal components were determined at 22 indicator points per skull by means of laser h...
Zwemer, Tom
Published in
American Journal of Orthodontics
Knoll, M. Gwinnett, A.J. Wolff, M.S.
Published in
American Journal of Orthodontics
A study was undertaken to determine the maximum shear strength of brackets bonded to anterior and posterior teeth. Brackets were bonded to two groups comprising 12 incisor and 12 molar teeth. After storage in water at 37° C for 10 days, each bracket was tested to failure in a shear mode in a Instron machine. The mean value for the incisors was 164....
Nieberg, Lewis G
Published in
American Journal of Orthodontics
Published in
American Journal of Orthodontics
Harbison, Raymond D.
Published in
American Journal of Orthodontics
Corbin, Philip J.
Published in
American Journal of Orthodontics
Vardimon, Alexander D Lambertz, Wolfgang
Published in
American Journal of Orthodontics
Inconsistency in torque data on diverse straight-wire appliance (SWA) attachments calls for reassessment of the SWA theories. This study evaluates the SWA theories and suggests predictive torque models. A custom-made torque angle gauge was used on models from 54 ideal occlusion subjects (34 orthodontically treated and 20 untreated cases). This stud...
Graber, T.M
Published in
American Journal of Orthodontics
Kelly, Michael F.
Published in
American Journal of Orthodontics
A case report of a Class II, Division 1 subdivision malocclusion with a deep overbite and a marked overjet is presented. The patient was a 14-year-old boy with the potential for continued growth. The lip positions imposed by the teeth and the facial skeleton increased the labioversion of the maxillary incisors. A Begg light-wire appliance was used ...
