US Patent 11553782 Manual oral care implement

A manual oral care implement comprises a handle, a connector and a head, the head being repeatedly attachable to and detachable from the handle via the connector. The handle has a distal end and a proximal end opposite to the distal end and adjacent to the head when the head is attached to the handle. The proximal end has an upper surface that is at least partially chamfered. The handle has a longitudinal axis and a cross-sectional area extending substantially perpendicular to the longitudinal axis. The chamfered surface and the cross-sectional area define therebetween an angle α from about 15° to about 30°.