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. Author manuscript; available in PMC: 2021 Feb 23.
Published in final edited form as: J Public Health Dent. 2017 Dec 29;78(2):165–174. doi: 10.1111/jphd.12260

Table 2:

Number of responses, daily fluoride intake, and fluorosis prevalence** for subjects with fluorosis scores and fluoride intake information available for both age ranges.

Tooth Type
Present
Fluoride
intake
age
ranges
(Years)
Mean Number of
Responses* (SD)
Mean Daily Fluoride
Intake in mg/day/Kg BW
(SD)
Fluorosis
Prevalence**
(%)
Canines
(n=269)
2 – 5 6.3 (2.1) 0.05 (0.02) 17.8
5 – 8 4.9 (1.4) 0.03 (0.02)
2 – 8 11.3 (3.0) 0.04 (0.02)
1st Premolars
(n=301)
2 – 5 6.3 (2.2) 0.05 (0.02) 21.6
5 – 8 5.0 (1.4) 0.03 (0.02)
2 – 8 11.3 (3.0) 0.04 (0.02)
2nd Premolars
(n=280)
2 – 5 6.4 (2.1) 0.05 (0.02) 23.6
5 – 8 5.1 (1.4) 0.03 (0.02)
2 – 8 11.5 (2.9) 0.04 (0.02)
2nd Molars
(n=251)
2 – 5 6.5 (2.0) 0.05 (0.02) 17.1
5 – 8 5.0 (1.3) 0.03 (0.02)
2 – 8 11.5 (2.8) 0.04 (0.02)
*

This represents the mean number of questionnaire responses per subject per time period. Subjects received questionnaires every 3 to 4 months before age 4, and every 6 months after age 4. For ages 2-5, the subjects received a maximum of 10 questionnaires, and for ages 5-8, subjects received a maximum of 7 questionnaires.

**

Fluorosis prevalence is defined as 2 or more teeth in a tooth group with definitive fluorosis using the Fluorosis Risk Index (FRI).