A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . space, and thusdecrease to that extent the original open-bite. The treatment consisted first in the extraction of the first left lower molar,the latter being chosen in this case because it contained a large amalgam filling, andprobably a devitalized pulp. This was followed with a bodily retruding movementof the lower premolar and labial teeth, more upon the left side than on the right,and with the usual care, with special apparatus, to close the buccal spaces bya bodily disto-me
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . space, and thusdecrease to that extent the original open-bite. The treatment consisted first in the extraction of the first left lower molar,the latter being chosen in this case because it contained a large amalgam filling, andprobably a devitalized pulp. This was followed with a bodily retruding movementof the lower premolar and labial teeth, more upon the left side than on the right,and with the usual care, with special apparatus, to close the buccal spaces bya bodily disto-mesial movement. Nothing is so conducive to irritation as in- 324 PART VI. DENTO-FACIAL MALOCCLUSIONS verted V-shaped spaces between buccal teeth, following the extraction of molarsor premolars, or attempts at extensive regulation with single molar anchoragespermitting inclination movement, and destruction of perfect masticating movement of the lower, in connection with the upper bodily labial movement,and the artificial closure of the upper first molar space, resulted in quite a perfect Fig. masticating occlusion, and a remarkable improvement in the physiognomy, whichthe final plaster cast inadequately portrays. In Fig. 231 is shown the plaster casts of a man twenty-four years of age,a graduate of the University of Michigan, who has recently finished a special post-graduate course at the University of Chicago, and has now entered the law depart-ment of that school. He is six feet tall, of robust figure and apparent rugged perfect mental and physical condition is mentioned, because it is remarkablein view of the fact that early untreated adenoids and long continued mouth- CHAPTER XLV. DIVISION 4- CLASS III 325 breathing inhibited the development of the maxilla and caused a malformationof the mandible and an open-bite malocclusion, which permitted a very imperfectmasticating closure upon only the disto-occlusal borders of the second lowermolars, so
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