A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . axillary and other forces were continued with this appara- CHAPTER XX. MODERN PRINCIPLES AND METHODS 177 tus. The working-retainer is fully described under Principles and Technicsof Retention, in Chapter LIV. During the absence of the patient, she very faithfully kept up the applicationof the various forces. On Wednesday, August 29, 1917, eleven months after thecase was started, all the appliances were removed, and the impressions were takenfor the plaster casts shown in Fig. 11
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . axillary and other forces were continued with this appara- CHAPTER XX. MODERN PRINCIPLES AND METHODS 177 tus. The working-retainer is fully described under Principles and Technicsof Retention, in Chapter LIV. During the absence of the patient, she very faithfully kept up the applicationof the various forces. On Wednesday, August 29, 1917, eleven months after thecase was started, all the appliances were removed, and the impressions were takenfor the plaster casts shown in Fig. 116. Notwithstanding the unfortunate fact thatthere are only three lower incisors, the dentures are in fair occlusion, which timewill improve. Below, is a front occlusal view of the teeth with the final retainersin position. You may be able to see the supplemental spurs for the attachment ofthe direct intermaxillary retaining elastics for continuing the extrusive force, toprevent a return of the infra-occlusal position, and also the hooks on the lowerfor continuing the disto-mesial intermaxillary force. Fig. Fig. 117 will give a fair idea of the development in the facial outlines by im-mediate comparison with the beginning facial cast on the left. The plaster im-pression for the one in the middle was taken upon the removal of the regularbodily movement apparatus which was worn about four months. The impressionfor the one on the right was taken upon the removal of the entire regulating appa-ratus. The protruded prominence of the roots of the incisors are very faintlyshown in the illustration. If the upper incisors are retained in their present bodilylabial position, the facial outlines will no doubt continue to improve through stim-ulated growth development. PART VI Practical Treatment of Dento-Facial Malocclusions CLASSES OF DENTO-FACIAL MALOCCLUSIONS Class I. Normal Disto-Mesial Occlusion of the Buccal TeethClass II. Distal Malocclusion of Lower Buccal TeethClass IIL Mesia
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