Abstract: In a toothbrush (1) having a brush member (3) which carries a bristle holder (7) with a bristle field (10) and an interdental bristle holder (11) with an interdental bristle field (14), the bristle field (10) comprises a first field portion (15) and a second field portion (16), the first field portion (15) being disposed nearer the interdental bristle field (14) than the second field portion (16) and the bristles (17) of the first field portion (15) being shorter than the interdental bristles (13) and the bristles (18) of the second field portion (16) being longer than the bristles (17) of the first field portion (15) and thus at the same time form interdental bristles.