Periodontal toothbrush

• US 5,201,092 A
• Filed: 10/09/1991
• Issued: 04/13/1993
• Est. Priority Date: 10/09/1991
• Status: Expired due to Fees

• Current Assignee: Edward L. Colson
• Original Assignee: Edward L. Colson
• Inventors: Colson, Edward L.
• Primary Examiner(s): Roberts, Edward L.
• Assistant Examiner(s): SOOHOO, TONY GLEN
• Application Number:
  US07/773,416
• Time in Patent Office: 552 Days
• Field of Search: 15/167.1, 15/DIG. 5, 15/167.2, 15/167.3
• US Class Current: 15/167.1
• CPC Class Codes: A46B 2200/1066 Toothbrush for cleaning the teeth or dentures A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04
• CPC Class Codes: A46B 9/04 Arranged like in or for toothbrushes
• CPC Class Codes: Y10S 15/05 Varied length bristle

Abstract

A toothbrush which is anatomically designed and constructed to effectively and efficaciously remove plaque or calculus from the inaccessible interproximal spaces between adjacent teeth, and at the same time gently massage the gingiva and effectively clean the teeth. The toothbrush includes a unique and novel bristle arrangement at one end of an offset handle. The bristles are arranged in tufts embedded in and anchored to a toothbrush head which is integrated with the handle in a conventional manner. The bristle tufts being arranged in twelve transverse or lateral rows with each transverse row including four tufts of bristles except for the outermost transverse row which includes only two tufts of bristles. The odd numbered transverse rows of tufts of bristles are all the same length and the even numbered transverse rows of tufts are of a length less than the odd numbered transverse rows of tufts. The even numbered trans-verse rows of tufts progressively increase in length with the even numbered transverse rows of tufts at the outer end portion of the brush head having a shorter dimensional length than the even numbered transverse rows oriented inwardly toward the handle. All the bristles and tufts are rounded to prevent injury to the gingival gum area. The other end of the handle is provided with an accessory brush in the form of a tuft of bristles to reach areas which may require individual additional or special attention due to teeth positioning and is especially useful for removing food debris and plaque from gingival pockets to assist in preventing periodontal disease.

Claims

1. A periodontal toothbrush comprising a handle and a toothbrush head supported at one end and forming a continuation of one end of the handle, said toothbrush head including a plurality of bristle tufts with the tufts being disposed in transversely extending, longitudinally spaced rows, said bristle tufts also being arranged in longitudinally extending, transversely spaced rows, alternating transversely extending tuft rows being of different length to engage and clean interproximal spaces of the teeth and the supporting gum tissue in a manner to remove plaque, thereby preventing the accumulation of plaque which may cause severe periodontal disease and resultant loosening of the teeth and damage to the gingiva and supporting bone structure, the transversely extending rows of bristle tufts are arranged in odd numbered and even numbered rows beginning farthest from said handle, the bristle tufts forming all of the odd numbered transversely extending rows being of the same length, the bristle tufts forming the even numbered transversely extending rows being shorter in length than the bristle tufts in the odd numbered rows, the rows of shorter tufts progressively increasing in length from the row of shorter tufts remote from the handle to the row of shorter tufts adjacent the handle.

2. The periodontal toothbrush as defined in claim 1 wherein each of said transversely extending rows of bristle tufts includes four bristle tufts except for the transversely extending row of bristles most remote from the handle with this transversely extending row of bristle tufts including less than four bristle tufts.

3. The periodontal toothbrush as defined in claim 2 wherein said handle includes a single bristle tuft on the end thereof remote from the toothbrush head with the single tuft extending away from the handle in a direction opposite to the tufts on the toothbrush head.

4. A toothbrush comprising an elongated handle having a toothbrush head at one end thereof forming an extension of the handle, said toothbrush head including a plurality of bristle tufts extending laterally from the toothbrush head in generally perpendicular relation to the toothbrush head, said bristle tufts being arranged in transversely extending, longitudinally spaced rows and in longitudinally extending, transversely spaced rows, said bristle head including 12 transversely extending rows of bristle tufts arranged in odd numbered and even numbered rows with the odd numbered rows including row number 1 remote from the handle and the even numbered rows including row number 12 adjacent the handle, all of said odd numbered rows being of the same length and being longer than any of the even numbered rows, said even numbered rows all being shorter than the odd numbered rows and progressing in length from even numbered row 2 adjacent odd numbered row 1 toward and including even numbered row 12 adjacent the handle thereby providing odd numbered row 1 of bristle tufts substantially longer than the adjacent even numbered row 2 of bristle tufts at the end of the toothbrush head remote from the handle and providing a slightly shorter even numbered row of bristle tufts adjacent the odd numbered row 11 of slightly longer tufts adjacent the handle end of the toothbrush head whereby a greater length exists between the longer row of bristle tufts and the shorter row of bristle tufts oriented toward the end of the toothbrush head remote from the handle as compared to the difference in height between the longer row of bristle tufts and the shorter row of bristle tufts adjacent the handle for greater flexibility of the longer bristle tufts remote from the handle for more effectively engaging and cleaning inter proximal spaces between the teeth and the supporting gum tissue for effectively removing plaque.