KINDS OF TEETH. 



201 



The canine tooth has a conical crowii, and a longer root 

 than the incisor. 



The bicuspid has two points. 



The molar has a cuboidal crown, and usually two or three 

 roots. 



KINDS OF TEETH 

 Incisors :::: 



TIME OF APPEARANCE 

 7th Month 

 9th " 

 18th " 



Incisors .. 



Canine 



Bicuspids ....... 



Molars 



TEMPORARY SET 

 Upper 



7th Year 

 8th " 



nth " 



9th " 



. . Lower 



PERMANENT SET 

 Fig. 57. TEETH : Kinds, Arrangements, and Times of Appearance. 



The thirty-two teeth of the permanent set were preceded 

 by a temporary set of twenty Milk Teeth. 



Because the first set is temporary, it should not therefore 



