This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...by some more definite facts with regard to individual organs or parts of the body that give more distinct evidence of a nodality at the school age. Development of Teeth and Jaws.--The period with which we are here dealing is distinctly a transitional one as regards the development of the teeth and jaws ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...by some more definite facts with regard to individual organs or parts of the body that give more distinct evidence of a nodality at the school age. Development of Teeth and Jaws.--The period with which we are here dealing is distinctly a transitional one as regards the development of the teeth and jaws. These present a number of phenomena, transitional as well as developmental in their nature, that group themselves about the years in which the change from first to second dentition occurs. Some of. these are very evident, others less so, but altogether they make up such a group of developmental processes, so closely associated with each other, and also to other phases of physical and mental development that they deserve to be noted con-. siderably in detail. Aside from this, there are also other well grounded reasons for dwelling somewhat at length upon this topic, 1. Anatomically, the teeth and jaws are the most important structures in the facial part of the skull. Much of the remaining portion is of rather secondary nature, its purpose being to furnish place for attachment of muscles or to give proper bracing and support for these parts. 2. On the side of physiological functioning the teeth and jaws are extremely important. Upon them devolves a great part of the preparation of food in the process of digestion, not to mention the part they play in articulate speech. 3. Again, from the view point of hygiene, it may be said that columns of good, sound teeth, so located as to bring their chewing surfaces into proper occlusion, are requisites of good health. The absence of these conditions may lead to any of a number of allied disturbances, to which more detailed reference will be made later. 4. Finally, since they occupy so prominent a place...
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Add this copy of The Pedagogical Seminary; Volume 20 to cart. $69.86, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2019 by Wentworth Press.
