A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . Diagnosis and General Treatment In all cases of marked antero-posterior malrelations of the dentiu-es, oneshould always strive to prevent being deceived by a facial effect. Where the man-dible and contained teeth are decidedly retruded in their esthetic relations, the 279 280 PART VI. DENTO-FACIAL MALOCCLUSIONS effect is usually that of an upper protrusion, even when the upper lip is nearly orquite in normal relation to the remaining features. For the perfect correction of occlu
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . Diagnosis and General Treatment In all cases of marked antero-posterior malrelations of the dentiu-es, oneshould always strive to prevent being deceived by a facial effect. Where the man-dible and contained teeth are decidedly retruded in their esthetic relations, the 279 280 PART VI. DENTO-FACIAL MALOCCLUSIONS effect is usually that of an upper protrusion, even when the upper lip is nearly orquite in normal relation to the remaining features. For the perfect correction of occlusion and facial outlines, cases of this Typereally demand—if it were possible—the operation known as jumping the bite,which was introduced by Dr. Norman Kingsley in 1882. This consists in attachingan apparatus to the teeth, which is intended to force the mandible forward the de-sired distance, and to hold it there until nature has so changed the tempero-maxil-lary articulation as to render it impossible for the jaw to ever go back to its originalposition. Fic. In the Dental Review of May and July 1894, will be found a complete resumeof the literature of jtunping the bite, with the authors description of the diffi-culties which would need to be overcome in a successful operation of this character;the whole is intended to show the improbability of permanent success. After manylong continued trials to jvunp the bite for patients younger than twelve, all ofwhich ultimately were failures, and as the author has never seen from the hands ofothers a single well authenticated case of permanent correction by this method,he cannot advise anyone to undertake it. On the other hand, while it may be possible with this character of malocclusionto bring the teeth to a normal occlusion by an interstitial movement, with theintermaxillary force, this operation in all marked cases should not be attempted, CHAPTER XXXVIII. CONCOMITANT CHARACTERS. CLASS II. 281 because the lower lip would b
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