The etiology of osseous deformities of the head, face, jaws and teeth . Fig. 61. opposite second molar produces a marked depression. Thereis a marked arrest of the lower jaw. The anterior surface ofthe lower centrals occlude at the first bicuspid; this givesthe appearance of no chin. All the teeth are present in theupper jaw, the width of which is outside first permanentmolar; it is also a saddle-shaped arch. In order that thejaws may accommodate all the teeth, they have pushed thealveolar process and jaw-bones forward. This man has beenamouth-breather all his life; the mouth, therefore,
The etiology of osseous deformities of the head, face, jaws and teeth . Fig. 61. opposite second molar produces a marked depression. Thereis a marked arrest of the lower jaw. The anterior surface ofthe lower centrals occlude at the first bicuspid; this givesthe appearance of no chin. All the teeth are present in theupper jaw, the width of which is outside first permanentmolar; it is also a saddle-shaped arch. In order that thejaws may accommodate all the teeth, they have pushed thealveolar process and jaw-bones forward. This man has beenamouth-breather all his life; the mouth, therefore, hasalways been open; the result is that the teeth and alveolarprocess have grown downward. Although the lips are long 240 ETIOLOGY OF OSSEOUS DEFORMITIES OF enough, he cannot close them, owing to the excessive develop-ment of the teeth and alveolar process. The alveolar processand teeth of the lower jaw are normal in development. Theheight of vault is .82 (this is an unusual high vault). Thealveolar process is large and thin. This nicely illustrateshow high vaults ar
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjecthead, bookyear1894
