. The teeth in health and disease . Fig. 1G.—Upper jaw with contracted Y-shaped dental arch. In other instances the lower jaw protrudesand the teeth are thrown far in advance of the. Fig. 17.—Split plate with spring (a) for expanding dental arch, IRREGULARITY OF THE TEETH oo upper ones, giving a bull-dog appearancethat is anything but agreeable. Occasionallythe back teeth alone antagonize, while thereremains a considerable space between the frontteeth which cannot be closed by any effort.

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherlondo, bookyear1902