The Knutson’s technique of fluoride application is done in the years:

 # The Knutson’s technique of fluoride application is done in the years:

A. 3,7,11,13

B. 2,6,10,16

C. 8,13,18,31

D. 2,7,11,18

The correct answer is A. 3,7,11,13

It is the technique recommended by Knutson for the application of 2% neutral sodium fluoride. It consists of 4 applications at weekly intervals in a year at age group of 3, 7, 11, and 13 years. This age group was selected depending on the eruption of deciduous dentition, first permanent molar and incisors, premolar and canines and second molars respectively.

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