TEN YEARS. 



105 



Fig. 100. 



Ten Years (Figs. 98, 99, 100).— From the increased obliquity of 

 tlie teeth the jaws become prominent in front, and at the ordinary height 

 of the head tlie inferior incisors are hidden when looked at from in front. 

 The ogive formed by the two sets of incisors, Avhen looked at in profile, 

 is more closed ; the angle of the teeth increases, and a greater interspace 

 is found between the intermediate and corner teeth. On the tables the 

 inferior pinchers are seen to be more rounded than at nine years, and the 

 cup is smaller and decidedly triangular; it is closer to the posterior 

 border of the teeth. The dental star, still more apparent, is found about 

 the centre of the teeth. The intermediate teeth are rounded and the 

 corner teeth commence to assume this form. The example furnished by 

 the plate shows deep fissures on the posterior border of the corner teeth. 

 The incisive arch is flatter in the centre. In the plate showing the teeth 

 from in front the superior pinchers are seen to be somewhat worn from 

 cribbing. 



