Creator

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Creation Date

1939

Technique

Black & white photograph

File Format

TIFF

Description

Microphotograph of a cross-section of a molar and toothbrush bristles of two different thicknessess, showing the limitations of the bristles in the thorough cleansing of occlusal grooves and fissures (after Bodëcker). This fissure here shown is too narrow to admit even the thinnest bristle.

Rights

Creative Commons License
This work is dedicated to the Public Domain.

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