# US 10,307,223 B1 · Tooth aligner removal device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,223 B1 - Document ID: US10307223B1 - Status: Granted - Kind: B1 - Application number: 15/940,030 - Filed: 2018-03-29 - Granted: 2019-06-04 - Earliest claimed: 2018-03-29 - Applicants: Ross E. Aronson - Inventors: Ross E. Aronson - Web page: https://patentgrep.com/patent/US10307223B1 ## CPC - A61C 7/023: {for debonding or removing orthodontic devices} - A61C 7/08: Mouthpiece-type retainers {or positioners, e.g. for both the lower and upper arch (arch-shaped medicament applicators for teeth or gums A61C19/063; mouthguards for protecting the teeth of sportsmen A63B71/085)} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) ## Abstract A dental tool for removing a dental aligner secured to teeth may include a first contact point that is configured to contact a biting surface of the aligner; a second contact point that is configured to contact a gumline end of the aligner; and a third contact point that is configured to contact a lateral surface of the aligner. A method of using the dental tool to remove the dental aligner from teeth is also disclosed. ## Claims ### Claim 1 A dental tool for removing a dental aligner secured to teeth, comprising: an elongated arm; a generally C-shaped member disposed at a distal end of the elongated arm, the generally C-shaped member including: a first member extending generally orthogonally relative to the elongated arm having a distal end; and a second member spaced apart from the first member, the first member defining a first contact surface that is configured to contact a biting surface of the aligner, a distal end of the second member defining a second contact surface that is configured to contact a gumline end of the dental aligner; and a protrusion extending from and disposed along the first member, the protrusion defining a third contact surface that is configured to contact a lateral surface of the aligner, wherein each of the first, second, third contact surfaces are configured to simultaneously contact the dental aligner at three discrete points on the dental aligner such that when the first, second, and third contact surfaces engage the dental aligner, contact between the aligner and the first, second, and third contact surfaces is maintained as the dental aligner is being removed from the teeth, and wherein each of the first, second, third contact surfaces define a discrete point on the dental tool. ### Claim 2 (depends on 1) The dental tool according to claim 1, wherein: the protrusion is configured to stabilize and maintain a biting surface end of the dental aligner on the first member, the first member and the second member defines a space therebetween to receive a width of the dental aligner corresponding to a length of a tooth when the dental aligner is secured to the tooth; and wherein when the dental aligner is disposed within the space defined between the first and second members, pivoting of the elongated arm causes the distal end of the second member to exert a flexing force upon a gumline end of the aligner relative to a biting surface end of the aligner, thereby causing the aligner to separate from the teeth. ### Claim 3 (depends on 2) The dental tool of claim 2, wherein the second member defines a hook curving toward the first member. ### Claim 4 (depends on 2) The dental tool of claim 2, wherein the tool includes a rubberized surface to facilitate improved grip. ### Claim 5 (depends on 2) The dental tool of claim 2, wherein the distal end of the second member is rubberized. ### Claim 6 (depends on 1) The dental tool of claim 1, wherein: the third contact point is configured to contact a biting end surface of the aligner and the third contact point is configured to inhibit slipping of the first member relative to the biting end surface of the aligner by being configured to apply a force to the lateral surface of the aligner, and the second contact point is configured to engage the aligner to exert a flexing force upon the aligner when the elongated arm is pivoted relative to the third contact point. ### Claim 7 (depends on 6) The dental tool of claim 6, further comprising a gripping member at a proximal end of the elongated arm. ### Claim 8 (depends on 7) The dental tool of claim 7, wherein the gripping member is a ring. ### Claim 9 A method of removing a dental aligner secured to teeth, comprising: a dental tool for removing a dental aligner secured to teeth, comprising: an elongated arm; a generally C-shaped member disposed at a distal end of the elongated arm, the generally C-shaped member including: a first member extending generally orthogonally relative to the elongated arm having a distal end; and a second member spaced apart from the first member, the first member defining a first contact surface that is configured to contact a biting surface of the aligner, a distal end of the second member defining a second contact surface that is configured to contact a gumline end of the dental aligner; and a protrusion extending from and disposed along the first member, the protrusion defining a third contact surface that is configured to contact a lateral surface of the aligner; positioning the dental tool such that the first contact surface contacts the biting surface of the aligner, the second contact surface contacts the gumline end of the aligner, and the third contact point contacts the lateral surface of the aligner; and pivoting the dental tool such that the second contact point rotates with respect to the third contact point; wherein each of the first, second, third contact surfaces are configured to simultaneously contact the dental aligner at three discrete points on the dental aligner such that when the first, second, and third contact surfaces engage the dental aligner, contact between the aligner and the first, second, and third contact surfaces is maintained as the dental aligner is being removed from the teeth and wherein each of the first, second, third contact surfaces define a discrete point on the dental tool. ### Claim 10 (depends on 9) The method of claim 9, further comprising, after the step of pivoting, pulling the aligner in a direction extending generally along a lateral surface of the teeth away from a gumline of a patient's mouth. ### Claim 11 (depends on 9) The method of claim 9, wherein: wherein when the dental aligner is disposed within the space defined between the first and second members, pivoting of the elongated arm causes a distal end of the second member to exert a flexing force upon a gumline end of the aligner relative to a biting surface end of the aligner, thereby causing the aligner to separate from the teeth. ### Claim 12 (depends on 11) The dental tool of claim 11, wherein the second member defines a hook curving toward the first member. ### Claim 13 (depends on 11) The method of claim 11, wherein the tool exerts a flexing force that is concentrated on the aligner and any force upon any surrounding mouth structure is minimized. ### Claim 14 (depends on 11) The method of claim 11, wherein the dental tool further comprises: a gripping member at a proximal end of the elongated arm. ### Claim 15 (depends on 14) The method of claim 14, wherein the gripping member is a ring. ### Claim 16 (depends on 15) The method of claim 15, wherein during use, a finger is receivable within the ring. ### Claim 17 (depends on 9) The method of claim 9, wherein the tool includes a rubberized surface to facilitate improved grip. ### Claim 18 (depends on 9) The method of claim 9, wherein at least one of the first, second, and third contact surfaces is rubberized. ### Claim 19 A dental tool for removing a dental aligner secured to teeth, comprising: an elongated arm extending in a generally longitudinal direction; a generally C-shaped member disposed at a distal end of the elongated arm, the generally C-shaped member including a first member extending generally orthogonally relative to the elongated arm having a distal end and a second member spaced apart from the first member; a protrusion extending from and disposed along the first member, the protrusion being configured to stabilize and maintain a biting surface end of the dental aligner on the first member, the first member and the second member defining a space therebetween to receive a width of the dental aligner corresponding to a length of a tooth when the dental aligner is secured to the tooth; wherein when the dental aligner is disposed within the space defined between the first and second members, pivoting of the elongated arm causes the distal end of the second member to exert a flexing force upon a gumline end of the aligner relative to a biting surface end of the aligner, thereby causing the aligner to separate from the teeth; and wherein the first member defines the first contact surface, a distal end of the second member defines a second contact surface, the protrusion defines the third contact surface, the first contact surface and the third contact surface being configured to contact a biting end surface of the aligner, the second contact surface being configured to contact a gumline end of the aligner, the third contact surface being configured to inhibit slipping of the first member relative to the biting end surface of the aligner by being configured to apply a force to a lateral surface of the aligner, the second contact surface being configured to engage the aligner to exert a flexing force upon the aligner when the elongated arm is pivoted relative to the third contact surface. ### Claim 20 A dental tool for removing a dental aligner secured to teeth, comprising: an arm member configured to be grasped by a technician; a removal member disposed at a distal end of the stabilizing arm, the removal member comprising: a first contact surface configured to contact a biting surface of the dental aligner during use; a second contact surface configured to contact a gumline end of the dental aligner during use; and a stopping contact surface positioned adjacent to the first contact surface, the stopping contact surface configured to contact a lateral side of the dental aligner and to prevent slipping of the dental aligner relative to a length of the second contact surface during use such that during use, the first contact surface, the second contact surface, and the stopping contact surface contact simultaneously contact the dental aligner at three points such that rotation of a proximal end the arm member relative to the distal end imparts a force upon the three points to effect removal of the dental aligner from the teeth.