The etiology of osseous deformities of the head, face, jaws and teeth . Fig, 100. meet the angle of the jaw, which, in a normal jaw, wouldextend from one to one and a half inches below the slender, delicate muscles and tendons are associ-ated with such bones. In these cases dislocation of the infe-rior maxilla is liable to occur while yawning or during dentaloperations, so great is the leverage. In this instance thelength of the jaw compensated for the width, so that in thisparticular case the teeth are not irregular; although irregu-larity frequently accompanies this peculiar f
The etiology of osseous deformities of the head, face, jaws and teeth . Fig, 100. meet the angle of the jaw, which, in a normal jaw, wouldextend from one to one and a half inches below the slender, delicate muscles and tendons are associ-ated with such bones. In these cases dislocation of the infe-rior maxilla is liable to occur while yawning or during dentaloperations, so great is the leverage. In this instance thelength of the jaw compensated for the width, so that in thisparticular case the teeth are not irregular; although irregu-larity frequently accompanies this peculiar formation of thejaw. This is particularly the case with the saddle or V-shaped THE HEAD, FACE, JAWS AND TEETH 325 arches on the upper jaw, and the saddle-shaped and forwardinclination of the molars, bicuspids and cuspid teeth on thelower jaw. The roof of the mouth is also very high and thealveolar process very thin, giving the roots of the teeth but. Pig. 101. slight support. The same principle of organization andstructure is operative in the alveolar process and teeth of thelower jaw. Fig. 101 represents the jaws of a patient, twenty-six years
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjecthead, bookyear1894
