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Effect of fluoride gels on occlusal fissures in primary molars: an in vitro study.

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Effect of fluoride gels on occlusal fissures in primary molars: an in vitro study.

Abstract

AIM:

To assess the effect of the application of fluoride gels on the acid resistance of occlusal enamel in primary molars.

STUDY DESIGN:

Forty-five primary second molars were randomly assigned to three groups: a) control (pH-cycling); b) 2% NaF gel/pH-cycling; and c) 1.23% APF gel/pH-cycling.

METHODS:

Specimens were longitudinally sectioned in the buccal-lingual direction and used for cross-sectional microhardness testing. Knoop hardness values were converted into vol.% mineral and mineral loss (ΔZ) was then calculated.

STATISTICS:

The response variables were vol.% mineral and ΔZ. Data were tested using parametric tests at a significance level of 5%.

RESULTS:

No statistically significant differences were found between groups regarding vol.% mineral or ΔZ.

CONCLUSIONS:

A single application of a high concentration fluoride compound does not promote greater resistance to demineralisation in enamel pits and fissures, regardless of the product used.

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