Toothbrush - Interdental Brush

An interdental brush, also called an interproximal brush or a proxy brush, is a small brush, typically disposable, either supplied with a reusable angled plastic handle or an integral handle, used for cleaning between teeth and between the wire of dental braces and the teeth. Brushes are available in a range of widths, color coded as per ISO 16409. Interdental brushes are classified according to ISO standard 16409:2006. The ISO brush sizes range from 1 to 7. The ISO brush size is determined by the PHD or Passage Hole Diameter in mm. This PHD is the minimum diameter of a hole that the interdental brush will pass through without deforming the brush wire stem.

Brush Color Brush Size Wire Size Passage Hole Diameter (PHD)
Pink 0 0.4mm
Orange 1 0.45mm <=0.8mm
Red 2 0.5mm 0.9 mm-1.0 mm
Blue 3 0.6mm 1.1 mm-1.2 mm
Yellow 4 0.7mm 1.3 mm-1.5 mm
Green 5 0.8mm 1.6 mm-1.8 mm
Purple 6 1.1mm >1.9 mm
Grey 7 1.3mm
Black 7 1.5mm

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Interdental Brush - End-tufted Brush
... An end-tufted brush is a type of toothbrush used specifically for cleaning along the gumline adjacent to the teeth ... An end-tufted brush is ideal for cleaning specific difficult-to-reach areas, such as between crowns, bridgework and crowded teeth ...

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