The etiology of osseous deformities of the head, face, jaws and teeth . he deformity would have been made greater thanit was. Instead of moving the lower teeth back, the upperteeth should have been moved forward. In six monthstreatment by this plan the teeth were corrected and the facewas greatly improved. In the majority of cases which appear to result from a THE HEAD, FACE, JAWS AND TEETH 323 protrusion of the lower jaw, we shall find that the lower max-illa does not project abnormally, but the superior maxilla,being arrested in its development, gives the protrudingappearance to the lower ja
The etiology of osseous deformities of the head, face, jaws and teeth . he deformity would have been made greater thanit was. Instead of moving the lower teeth back, the upperteeth should have been moved forward. In six monthstreatment by this plan the teeth were corrected and the facewas greatly improved. In the majority of cases which appear to result from a THE HEAD, FACE, JAWS AND TEETH 323 protrusion of the lower jaw, we shall find that the lower max-illa does not project abnormally, but the superior maxilla,being arrested in its development, gives the protrudingappearance to the lower jaw. Before undertaking to correctsuch a deformity the general contour of the face should becarefully studied. My experience has been that many mis-takes have been made by operators who did not understandthe true condition of the patient. A peculiar but common deformity of the inferior maxillais illustrated in Fig. 99. The body of the Jaw is very line dropped perpendicularly, and touching the chin at themedian line, would pass through the bicuspid region of the. Fig. 99. superior maxilla. A front view of such a deformity gives anappearance as though the lower jaw were absent, and a sideview throws the nose out prominently, while the chin andforehead retreat. The rami of the jaw are larger than thebody. The articulation is good, the defect being that in theincisor region the teeth strike quite a distance posterior tothe superior incisors. Arrest of development of the lowerjaw frequently results when the superior incisors are crowdedinward irregularly, or when there is arrest of developmentof the superior maxilla the lower incisors coming in contactwith them, thus preventing the forward development of thebod^^ of the jaw. The anterior portion of the lower jaw 324 ETIOLOGY OF OSSEOUS DEFOKMITIES OF remains stationary, while the development is in the posteriordirection. Fig. 100 represents jaws such as are frequently long body and protruding chin, narrow and contract
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjecthead, bookyear1894
