A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . ns of the holes. The bars shouldconform somewhat to the shape of the surfaces over which they lie, and take theposition best calculated for freedom from the tongue and lower teeth. This can beaccomplished on the model preparatory to soldering to the pins; the final adjust-ments to correct slight imperfections being made at the chair preparatory to cement-ing the completed fixture. PART IX The Prosthetic Correction of Cleft Palate THE PROSTHETIC CORRECTION OFCLEFT PALATE CHAPTER
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . ns of the holes. The bars shouldconform somewhat to the shape of the surfaces over which they lie, and take theposition best calculated for freedom from the tongue and lower teeth. This can beaccomplished on the model preparatory to soldering to the pins; the final adjust-ments to correct slight imperfections being made at the chair preparatory to cement-ing the completed fixture. PART IX The Prosthetic Correction of Cleft Palate THE PROSTHETIC CORRECTION OFCLEFT PALATE CHAPTER I GENERAL PRINCIPLES IN THE MECHANISM OF SPEECH, AND THE TRAININGOF CLEFT PALATE PATIENTS AFTER OPERATION In taking up the study of correction of Cleft Palate, the student is referred toany one of the main works upon Oral Surgery for the history, the etiology, and thepeculiar physical and anatomic characteristics of this unfortunate deformity. For the purposes of our present work which pertains purely to the practicalcorrection of speech by prosthesis, for cleft palate patients, the student shotdd fully Fig. A typical single cleft of the palate. The dotted line showsthe border should not extend back of the most anteriorattachment of the velum-palati. realize at the outset that the real object of a cleft palate operation, whether bysurgery or prosthesis, is to fully restore the deficient parts in a manner that willenable the muscles, in connection with the restoration, to perform all the functionsof normal speech, so that the patient will be able, with proper training, to speakwith perfect articulation and normal voice tone quality. One cannot appreciate the many requirements that are demanded of an arti-ficially or a surgically restored palate until he fully understands the normal mecha- 409 410 PART IX. TEE PROSTHETIC CORRECTION OF CLEFT PALATE nism of speech and the main principles of phonology, and particulariy the partwhich is played by the veliim-palati, whose function
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