PERMANENT TOOTH CARIES EXCEPT SIX-YEAR MOLAR AT A ELEMENTARY SCHOOL

Abstract

In the 41st year of Showa, the percentage of caries exerienced persons of 10, 318 pupils of 12 primary schools in Kumamoto prefecture amounts to as high as 62.63%=6, 486 (_??_ 57.83, _??_67.45.) And almosf all the patients 6.462, 99.63 % suffer from six-oear molar caries, in which 5, 743 (88.54%) with only six-year molar caries are included. Thus, pupils whose caries are confined to the teeth except six-year molars are so few as 24 (0.37%). In other words, it may be allowed to regard permanent tooth caries of school children as six-year molar ones.