A toothbrush is provided that includes a base component having a gripping region and an oral engaging region defining a longitudinal axis along a length of the oral engaging region and a transverse axis along a width of the oral engaging region. The oral engaging region has bilateral symmetry with respect to the longitudinal axis and can comprise wherein the oral engaging region has bilateral symmetry with respect to the longitudinal axis and comprises a first distal region having an approximately concave contour tapering to a second middle region having an approximately convex contour and widening to a third proximal region having an approximately concave contour. The oral engaging region can support a plurality of cleaning elements along a front side and a plurality of soft cleaning elements along a second side opposite the first.