Head for an oral care implement and oral care implement

A head for an oral-care implement, the head comprising:

• a plurality of colored filaments extending from a mounting surface of the head and grouped together to define an initial color pattern,
• the plurality of colored filaments comprising at least a first type of filament having an initial color and a second type of filament having an initial color, wherein said first and second types of filament differ from one another in their respective color-changing characteristics over a pre-defined period of time,
• wherein the pre-defined period of time is the same for the first type of filament and the second type of filament, so that the initial color pattern changes its color characteristics over at least a first pre-defined period of time to a first color pattern that is different form the initial color pattern,
• wherein the initial color of the first type of filament differs from the initial color of the second type of filament,
• wherein each of the first type of filament and the second type of filament changes its initial color to a first color, respectively, and
• wherein the first color of the first type of filament differs from the first color of the second type of filament.