File:The Dental cosmos (1914) (14767926102).jpg

Identifier: dentalcosmos5619whit (find matches)
Title: The Dental cosmos
Year: 1914 (1910s)
Authors: White, J. D McQuillen, J. H. (John Hugh), 1826-1879 Ziegler, George Jacob, 1821-1895 White, James William, 1826-1891 Kirk, Edward C. (Edward Cameron), 1856-1933 Anthony, L. Pierce (Lovick Pierce), b. 1877
Subjects: Dentistry Dentistry
Publisher: Philadelphia, S. S. White Dental Manufacturing Co
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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Showing malrelations of the jaws at birth. we must remember that the disturbanceexists in the bone, while the teeth onlyhelp us to recognize it. As evidence of Two were newborn infants, and onesix weeks old. Of course, as it wasimpossible to obtain models or evenphotographs in the desired positions, Ihad to resort to a written record of them.The upper alveolar process was in ad-vance of the lower, and the expressionabout the mouth resembled very muchthat which is so closely related to a casebelonging to class II, division 2, in theadult. One of these infants is now twoyears of age, and has a decided class II,division 1, case of malocclusion. I waslater more fortunate to discover a setof models (Fig. 2) in Dr. Rolof B.Stanleys collection, which he kindly con-sented to let me use to illustrate thispoint. These models were prepared fromimpressions taken postmortem of aninfant five days old. Another illus-tration of this point you will find inFig. 3, also belonging to Dr. Stanley, Fig. 3.
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Malrelations of the jaws at the age of five months. this we may have disturbances in thedevelopment of the jaw-bones before theeruption of the teeth. The observationof three such cases led me to this belief. and obtained from impressions of a five-months-old baby. There are, however,many more cases on record (Ballantyne),describing antenatal disturbances in the HELLMAX. SOME ETIOLOGICAL FACTORS OF MALOCCLUSION. 1021 growth of the mandible, for instance,where the deformity may vary from aslight diminution in size to a completeabsence of the bone. REMOTENESS AND OBSCURITY OF SOMECAUSES OF MALOCCLUSION. Relative to our knowledge of theetiology of malocclusion, ProfessorTandier(16) adequately expresses hisopinion of the situation when he saysthat We have not yet advanced beyondthe realm of vague supposition. If weshould examine the countless modifica-tions that a developing organism passesthrough from inception to parturition,and realize the underlying conditionsbringing about these remar

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