# US 2014/0242541 A1 · Dental cutting system and method with remote cutting guide > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0242541 A1 - Document ID: US20140242541A1 - Status: Published application - Kind: A1 - Application number: 14/191,298 - Filed: 2014-02-26 - Published: 2014-08-28 - Earliest claimed: 2013-02-27 - Assignees: DigitalPrep Technologies, Inc. - Applicants: DigitalPrep Technologies, Inc. - Inventors: Daniel Yonil Jung; Yunoh Jung - Web page: https://patentgrep.com/patent/US20140242541A1 ## CPC - A61C 1/082: {Positioning or guiding, e.g. of drills} - A61C 3/02: Tooth drilling or cutting instruments; Instruments acting like a sandblast machine - 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 cutting system and method for cutting a patient's tooth includes a hand piece to be held and carrying a cutting burr to cut the patient's tooth. A plurality of guide pins is attached to and extends from the hand piece of the cutting tool remote from the cutting bur. One or more cutting guides each have a cavity coinciding with at least a portion of teeth inside a patient's mouth that are adjacent to or remote from the patient's tooth to be cut. The guide pins of the handpiece slide in slots in the cutting guide to guide the cutting burr to cut the patient's tooth. ## Claims ### Claim 1 A dental cutting system for cutting a patient's tooth, the system comprising: a) at least one cutting guide having at least one cavity configured to match at least a portion of at least one of a patient's teeth inside a patient's mouth adjacent to or remote from the patient's tooth to be cut; b) a plurality of slots in the cutting guide extending from an exterior of the cutting guide into the cutting guide; c) each of the plurality of slots having a cross-sectional shape transverse to a longitudinal length of the slot with a narrower exterior and an enlarged interior; d) a handpiece configured to be held and carrying a cutting tool with a cutting burr configured to cut the patient's tooth; e) a plurality of guide pins attached to and extending from the handpiece and located laterally and/or longitudinally remote from the cutting bur with respect to the handpiece; f) each of the plurality of guide pins having a narrower neck and an enlarged head; and g) the plurality of guide pins being slidable in the plurality of slots to guide the cutting burr with respect to the patient's tooth to be cut. ### Claim 2 (depends on 1) The system in accordance with claim 1, wherein each of the plurality of slots extends only partially into the cutting guide without extending to the at least one cavity therein. ### Claim 3 (depends on 1) The system in accordance with claim 1, wherein the plurality of slots includes three slots and the plurality of guide pins includes three guide pins each corresponding to a different one of the three slots. ### Claim 4 (depends on 3) The system in accordance with claim 3, wherein the three guide pins are arrayed in a triangle. ### Claim 5 (depends on 4) The system in accordance with claim 4, wherein the three guide pins include a center guide pin aligned with the cutting burr on the cutting tool, and a pair of lateral guide pins disposed laterally with respect to the center guide pin. ### Claim 6 (depends on 1) The system in accordance with claim 1, further comprising a plurality of groups of slots each having a plurality of slots, with each of the plurality of groups of slots disposed on a different side or face of the at least one cutting guide. ### Claim 7 (depends on 1) The system in accordance with claim 1, wherein the plurality of guide pins and the cutting burr are off axis or unaligned with respect to one another. ### Claim 8 (depends on 1) The system in accordance with claim 1, wherein the plurality of guide pins each include a stem directly coupled to the hand piece and a free end with an enlarged orb thereon. ### Claim 9 (depends on 1) The system in accordance with claim 1, wherein each of the guide pins has a shape that matches a cross-sectional shape of a corresponding slot. ### Claim 10 (depends on 1) The system in accordance with claim 1, wherein the plurality of slots form a remote cutting path corresponding to, but remote from, an actual cutting path of the cutting burr on the patient's tooth to be cut. ### Claim 11 (depends on 1) The system in accordance with claim 1, wherein the at least one cutting guide includes a main body configured to engage at least one of a patient's teeth including buccal, lingual and occlusal walls; and wherein the at least one cutting guide includes protrusions extending from the main body and having the plurality of slots therein, with the protrusions having a wall surrounding a majority of a slot with a substantially constant cross-sectional shape. ### Claim 12 (depends on 1) The system in accordance with claim 1, further comprising a plurality of cutting guides each being separately located on the at least a portion of teeth inside the patient's mouth that are adjacent to or remote from the patient's tooth to be cut, and each having a plurality of slots corresponding to the plurality of guide pins. ### Claim 13 (depends on 1) The system in accordance with claim 1, wherein the at least one cutting guide is an occlusal cutting guide, and the plurality of slots includes three occlusal slots located on a buccal side of the occlusal cutting guide, and three occlusal slots located on a lingual side of the occlusal cutting guide. ### Claim 14 (depends on 1) The system in accordance with claim 1, wherein the at least one cutting guide is a buccal or a lingual or both cutting guide, and the slot includes three buccal or lingual or both slots located on an occlusal wall. ### Claim 15 (depends on 1) The system in accordance with claim 1, wherein each of the plurality of slots of the at least one the cutting guide further comprises an enlarged opening to allow insertion of the enlarged head of a corresponding guide pin. ### Claim 16 (depends on 1) The system in accordance with claim 1, wherein the cutting guide includes at least one undercut bump extending from an interior surface of the cutting guide and into the cavity configured to abut to a patient's tooth. ### Claim 17 (depends on 1) The system in accordance with claim 1, wherein the cutting guide includes indicia formed directly thereon and integrally with the cutting guide. ### Claim 18 (depends on 1) A method for cutting a patient's tooth utilizing the system in accordance with claim 1, the method comprising: a) placing the at least one cutting guide on the least one of the patient's teeth with the cavity of the cutting guide matching at least a portion of at least one of the patient's teeth while leaving the patient's tooth to be cut exposed; b) inserting the enlarged head of each of the plurality of guide pins into a different one of the plurality of slots in the at least one cutting guide; and c) displacing the plurality of guide pins along the plurality of slots to guide the cutting burr and displace the cutting burr with respect to the tooth to be cut. ### Claim 19 (depends on 18) The method in accordance with claim 18, further comprising, under the control of one or more computer systems configured with executable instructions: a) obtaining a 3D image of the patient's teeth; b) digitally preparing a tooth to be cut based on the 3D image; c) digitally designing a restoration; d) digitally designing the cutting guide; and e) producing the cutting guide and the restoration. ### Claim 20 A dental cutting system for cutting a patient's tooth, the system comprising: a) a plurality of cutting guides each having at least one cavity therein coinciding with at least a portion of teeth inside a patient's mouth that are adjacent to or remote from the patient's tooth to be cut to expose the patient's tooth to be cut with respect to the cutting guide; b) each of the plurality of cutting guides comprising a plurality of slots in the cutting guide extending from an exterior of the cutting guide into the cutting guide; c) each of the plurality of slots having a cross-sectional shape transverse to a longitudinal length of the slot with a narrower exterior and an enlarged interior; d) the plurality of cutting guides comprising: 1) an occlusal cutting guide with occlusal slots located laterally on the occlusal cutting guide; 2) a buccal or a lingual or both cutting guide with buccal or lingual or both slots located on an occlusal wall of the cutting guide; e) a handpiece with a handle configured to be held and a head with a cutting tool with a cutting burr configured to cut the patient's tooth; f) a plurality of guide pins attached to and extending from the handle of the handpiece and located remote from the cutting bur and the head; g) each of the plurality of guide pins having a narrower neck and an enlarged head; and h) the plurality of guide pins being slidable in the at least one slot to guide the cutting burr with respect to the patient's tooth to be cut. ### Claim 21 A cutting tool device for cutting a patient's tooth, the device comprising: a) a hand piece with a handle configured to be held and having a head with a cutting burr configured to cut the patient's tooth; and b) a plurality of guide pins attached to and extending from the handle of the handpiece and located remote from the cutting bur and the head. ### Claim 22 (depends on 21) The device in accordance with claim 21, further comprising: a) at least one cutting guide having at least one cavity to match at least a portion of at least one of a patient's teeth inside a patient's mouth that are adjacent to or remote from the patient's tooth to be cut; b) a plurality of slots in the cutting guide extending from an exterior of the cutting guide into the cutting guide; c) each of the plurality of slots having a cross-sectional shape transverse to a longitudinal length of the slot with a narrower exterior and an enlarged interior; d) each of the plurality of guide pins having a narrower neck and an enlarged head; and e) the plurality of guide pins being slidable in the at least one slot to guide the cutting burr with respect to the patient's tooth to be cut. ### Claim 23 A method for cutting a patient's tooth, comprising: a) placing a cutting guide on at least one of the patient's teeth with a cavity of the cutting guide matching at least a portion of at least one of the patient's teeth at a location remote from the patient's tooth to be cut and leaving the patient's tooth to be cut exposed with respect to the cutting guide; b) inserting an enlarged head of each of a plurality of guide pins into a different one of a plurality of slots in the at least one cutting guide, the plurality of guide pins being attached to and extending from the handpiece and located remote from a cutting burr; and c) displacing the guide pins along the plurality of slots to guide the cutting burr with respect to the patient's tooth to be cut.