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590 EXTRACTION OF TEETH.
ance of being- flattonod out. It divides and sends a branch around the
internal half of the shell.
Fig. 528.
Inner side of left half of lower jaw, showing an impacted third molar.
Figs. 530 and 531 are taken from the right and left halves of the
lower jaw. Fig. 530 shows the internal surface of the right half;
Fig. 529.
(Same as Fig. 528.)
Fig. 531, the external surface of the .^anie. In Fig. 530 the roots
of the third molar curve backward, are joined together, and are so
