A text-book of dental histology and embryology, including laboratory directions . Bone from the buccal plate of the mandible of a young sheep, showing transforma-tions of bone: 1, subperiosteal bone; 2, Haversian system bone; 3, Haversian systembone, becoming cancellous. incisors, and from the lower border of the mandible to theedge of the lower incisors. It will be seen that if the infantmandible were placed in relation to the adult mandible itwould lie entirely within the arch and in the mouth cavity,while in the upper the temporary incisors in Fig. 322 wouldbe some place in the nasal cavity
A text-book of dental histology and embryology, including laboratory directions . Bone from the buccal plate of the mandible of a young sheep, showing transforma-tions of bone: 1, subperiosteal bone; 2, Haversian system bone; 3, Haversian systembone, becoming cancellous. incisors, and from the lower border of the mandible to theedge of the lower incisors. It will be seen that if the infantmandible were placed in relation to the adult mandible itwould lie entirely within the arch and in the mouth cavity,while in the upper the temporary incisors in Fig. 322 wouldbe some place in the nasal cavity. In all of this growth the THE GROWTH OF THE JAWS 413 size of the air spaces increases with the movements of theteeth, the floor of the nose and palate growing downwardand developing. This may be shown in Figs. 323 to 328, in Fig. 330. The record in the arrangement of the lamellae of the growth of the mandibles. Adecalcified section from near the lower border of a human mandible. which the right half of the maxilla has been removed fromdissected skulls and photographed from the median line. Tissue Changes in the Physiologic Movements of the Teeth.—All that has been said in regard to bone growth must be 414 , THE TEETH AND DEVELOPMENT OF THE FACE recalled in order to obtain a conception of the manner inwhich these movements of the teeth and the developmentof the bone are accomplished. Bone laid down under Fig. 331
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectteeth, bookyear1912
