THE MOUTH 



1117 



The crown is large and conical, very convex on its labial surface, a little hollowed 

 and uneven on its lingual surface, and tapering to a blunted point or cusp, which 

 projects beyond the level of the other teeth. The root is single, but longer and 

 thicker than that of the incisors, conical in form, compressed laterally, and marked 

 by a slight groove on each side. 



FIG. 1002. Permanent teeth. Right side. (Burchard.) 



First and sec- 

 ond inferior 

 premolars 



Inferior molar sy 



FIG. 1003. The permanent teeth, viewed from the right. The external layer of bone has been partly removed and the 

 maxillary sinus has been opened. (Spalteholz.) 



The upper canine teeth (popularly called eye teeth} are larger and longer than 

 the lower, and usually present a distinct basal ridge. 



The lower canine teeth (popularly called stomach teeth) are placed nearer the 

 middle line than the upper, so that their summits correspond to the intervals 

 between the upper canines and the lateral incisors. 



