12 A MANUAL OF DENTAL ANATOMY. 



gulum and consequent more marked depression in front of 

 it, caries is more frequent upon the lingual surfaces of upper 

 lateral than upon those of upper central incisors. 



The pulp cavity is, relatively to the whole tooth, perhaps 

 a little larger than in the central incisors j in other respects 

 the same description will suffice. 



Lower central incisors are very much narrower than 

 those of the upper jaw j not more than half the width at 

 their cutting edges, which again are much wider than the 

 necks of the teeth. 



From before backwards they are deep at the neck ; hence 

 the fangs are very much flattened from side to side, and 

 rotation is inadmissible in the attempt to extract them. 



The enamel contour at the neck is similar to that of the 

 upper incisors, but there is no well-marked cingulum. 



FIG. 3 ( J ). 



Lower lateral incisors are, unlike the upper teeth, dis- 

 tinctly larger than the centrals in each one of their dimen- 

 sions, but more especially in the length of their fangs, 

 which are much flattened, and often present on their sides 

 a median longitudinal depression, sometimes amounting to 

 an actual groove. 



The distal angle of the crown is rounded off like that of 

 the upper lateral incisors, though not so markedly. 



Canines, Cuspidati, Eye Teeth, are, in all respects, 



(*) Front and side view of lower central incisor. 



