Medical Diseases of Infancy and Childhood

Medical Diseases of Infancy and Childhood

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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. 1900 edition. Excerpt: ...lower contra incisors. 2) Ninth to Tenth month Two upper central incisors. Two upper lateral incisors. (3) Twelfth to Fourteenth month Two upper anterior molars. Two lower lateral incisors. Two lower anterior molars. (4) Sixteenth to Trentuseeond month Four canines. (.5) Eighteenth to Thirty-sixth month Four posterior molars. This is the normal sequence, but variations are common. The upper central incisors may appear before the lower; the canines may appear earlier or later than usual, and similar irregularities may be observed in other teeth. Occasionally dentition begins very early, and children have even been born with teeth. Delayed eruption is far more common owing, probably, to the frequency ot rickets. The second dentition begins at about the end of the sixth year with the eruption of the first molar behind the second temporary molar; in the eighth year the central incisors; in the ninth the lateral incisors appear; and in the tenth and eleventh years the bicuspids replace the two temporary incisors. The permanent canines are cut about the twelfth year; the second molars about the thirteenth or fourteenth; and the last molars (wisdom) in early adult life (eighteen to twenty-four, or later). 'By Ballantyne, "Introduction to the Diseases of Infancy." The eruption of the teeth is a physiological process, and may be attended by no local or general signs of disturbed health, but, like other physiological processes, it may be disordered and give rise to symptoms of irritation, both local and general. While the severity of this disorder of function and the frequency with which it occurs have been much exaggerated in the past, the opposite error must also be guarded against. In the adult the cutting of the wisdom teeth may be...
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Product details

  • Paperback | 226 pages
  • 189 x 246 x 12mm | 413g
  • United States
  • English
  • black & white illustrations
  • 1236832442
  • 9781236832443