Patent ID: 8595886

Claim:
A toothbrush comprising: an elongated tuft of bristles shaped and configured to enclose, at least partially, an area, thereby forming an elongated bristle tuft having a contoured interior shape surrounding the partially enclosed area; and at least one complementary-shaped tuft of bristles positioned, at least partially, within the at least partially enclosed area enclosed by said elongated bristle tuft and being shaped to complement said contoured interior shape of said elongated bristle tuft; wherein: said elongated bristle tuft and said complementary-shaped bristle tuft extend from a substantially planar head surface of a toothbrush head; said elongated bristle tuft has a bristle profile presenting a cleaning surface angled to a first degree with respect to said toothbrush head surface such that said elongated bristle tuft has a first section and a second section, with said cleaning surface at said first section being positioned higher than said cleaning surface at said second section; said complementary-shaped bristle tuft has a bristle profile presenting a cleaning surface angled to a second degree with respect to said toothbrush head surface such that said complementary-shaped bristle tuft has a first section and a second section, with said cleaning surface of said complementary-shaped bristle tuft at said first section being positioned higher than said cleaning surface of said complementary-shaped bristle tuft at said second section, said cleaning surface of said complementary-shaped bristle tuft extending from said second section to said first section in a direction towards said second section of said elongated bristle tuft; and said cleaning surface of said first section of said complementary-shaped bristle tuft is positioned higher than said cleaning surface of said second section of said elongated bristle tuft, and said second degree differs from said first degree.