124 MODELS OF THE TEETH. 



palate beliind the right upper lateral incisor. 

 The new tooth gradually protruded, and in 

 about twelve months loosened and removed the 

 lateral incisor, the place of which it now occupied. 

 The patient was at the present time 81 years 

 of age, and the canine tooth which had been cut 

 so late in life, was the only one decayed. The 

 second model also represented a right upper 

 cuspidatus, which was cut at the age of 49. 

 Four of the neighbouring front teeth had been 

 knocked out by concussion in a railroad accident, 

 and had been replaced by artificial means. The 

 large canine tooth attached by wax to this model 

 was extracted about two years after the accident, 

 in consequence of the impediment it offered to the 

 free use of the artificial teeth. Probably but for 

 the pressure of the plate and the accidental loss 

 of the adjoining teeth, the eruption of the canine 

 tooth in this case might have been delayed for 

 a still longer time. A third model exhibited 

 a second right upper bicuspid tooth, which was 

 cut at the age of 70. The upper jaw was, with 

 this exception, edentulous. He remarked that 

 these three models were taken from male patients ; 

 the teeth were all well formed, and could not be 

 mistaken for supernumerary teeth. The large 

 right upper central incisor tooth, represented in 

 the fourth model, was interesting only on account 

 of its peculiar shape, the crown being half an inch 

 wide. The left central, and the right and left 



