A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . object in applying the power uponroot-wise attachments to the front teeth,is to increase the mechanical advantages of the whole apparatus, which is quiteimportant when extensive bodily movements of front teeth are demanded forolder patients. If one wishes to combine with this the torsional bodily force, he can easilyconstruct the hooks to exactly fit a ribboned portion of the power arch-bow, asshown by Fig. 62, Chapter XIV. The bow is rolled at such an angle that when
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . object in applying the power uponroot-wise attachments to the front teeth,is to increase the mechanical advantages of the whole apparatus, which is quiteimportant when extensive bodily movements of front teeth are demanded forolder patients. If one wishes to combine with this the torsional bodily force, he can easilyconstruct the hooks to exactly fit a ribboned portion of the power arch-bow, asshown by Fig. 62, Chapter XIV. The bow is rolled at such an angle that whenplaced in its front attachments, the distal ends of the bow, at equilibrium, willstand below the occlusal plane, from which they are sprung upward into their posi-tions in the U or open tubes. It would be advisable, however, from some experiencewhich the author has had with this method, that the fulcrum bow be not omitted,and the power bow be not less than No. 19. The Technics of Attachments.—The incisor attachments for bodily labialmovements for young patients are made in the following manner: No. 18 (.040 ). CHAPTER XX. MODERN PRINCIPLES AND METHODS 171 y ^ Fig. 109.
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