ERUPTION OF THE PERMANENT TEETH 



155 



European. The condition of the Fihpino in stature and in the 

 eruption of the permanent teeth seems to be an early precocity 

 superseded by an early retardation in development, but in mor- 

 phologic type the Filipino is retarded throughout the period of 

 development. 



RESimiE 



1. The eruption of the teeth in relation to the development of the 

 individual: the physiological standard 



The time of most rapid eruption of the teeth and the time 

 at which 50 per cent have erupted is the same, and may be called 

 the physiological standard of the teeth. This is shown in table 

 1, for the Americans, Germans, and Filipinos. 



2. The eruption of the teeth in relation to stature: periods of rapid 



development 



TABLE 2 



Boys' stature 

 Boys' teeth. . 

 Girls' stature 

 Girls' teeth. . 



2 PERIOD 



3 PERIOD 



4 PERIOD 



1-6 mos. 3-5 years 7-9 years 12-14 years 

 6 mos.-2 yrs. | 6-9 years | 10-13 years 



1-6 mos. 1 2-4 years | 6.5-7.5 years | 10-14 years 

 6 mos. -2 yrs. j 6-8 years I 9-11 years 



