Impact of interocclusal contacts on infrared laser fluorescence in pits of sound first permanent molars in children.

Background: A device based on infrared laser fluorescence (IRLF) has become available as an adjunct for the diagnosis of dental caries.

Aims: The objective of this study was to clarify the differences of IRLF readings in the mesial, central and distal occlusal pits of first permanent molars.

Design: Sixty-four children (average age 8.