. The Dental cosmos. d Clark Wissler(23) have shown a re-lation to exist between feeble-mindedindividuals and the form of the hard pal-ate. Barthels(24) found in those afflictedwith hypertrichosis universalis abundantmalocclusal conditions. Michelson(25)described a family with heterotopywhich showed a number of occlusalanomalies, tardiness in the eruption ofdeciduous teeth, and impaction of themolars. This would indicate that thereare certain forms of agents in the brainthat would have some influence upon theestablishment of malocclusal , malocclusal conditions are alsotracea
. The Dental cosmos. d Clark Wissler(23) have shown a re-lation to exist between feeble-mindedindividuals and the form of the hard pal-ate. Barthels(24) found in those afflictedwith hypertrichosis universalis abundantmalocclusal conditions. Michelson(25)described a family with heterotopywhich showed a number of occlusalanomalies, tardiness in the eruption ofdeciduous teeth, and impaction of themolars. This would indicate that thereare certain forms of agents in the brainthat would have some influence upon theestablishment of malocclusal , malocclusal conditions are alsotraceable in deaf-mutes, in whom, accord-ing to G. Fischer, as high as 50 per cent,were found to present deformed palates. Disturbances in the ductless glandshave been found to have some relationto malocclusal conditions. Cretins fre-quently show extreme malocclusions ofthe teeth. HELLMAX. SOME ETIOLOGICAL FACTORS OF MALOCCLUSION. 1023 In individuals afflicted with this dys-trophy, it will be seen that owing to the Fig. A B Effect of experimental thyroidectomy onstature, a, Normal dog. b, Thyroidecto-mized dog. absence or atrophied condition of thethyroid gland, there is a general stunted-ness in stature and in some of the facial Fig. 5.
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Keywords: ., bookcentury1900, bookdecade1910, bookiddent, booksubjectdentistry
