DEVELOPMENT AND STRUCTURE OF THE MOLARS. 



41 



infundibula of the papillae of the root is practically the same as 

 in the superior molars. 



The molars, like the incisors, are composed of a funda- 

 mental substance and two covering layers. 



Grinding table of a superior 

 molar (left). 



Fig. 29. 



Table of an inferior molar 

 (right). 



A. The Enamel forms the bulk of the tooth. It covers the 

 four faces and is reflected into the infundibula. On the table 



Fk;. 30. 

 Transverse section of superior molar (left) . Enlarged. 



of a molar which has been worn down it forms the bright lines 

 which form the Old English g. 



B. The Ivory or Dentine is deposited on the internal face 

 of the enamel, and finally fills up the diverticula of the puli> 



