CN219439478U - Root canal drilling and grinding system with auxiliary positioning guide plate - Google Patents

Abstract

The utility model relates to a root canal treatment instrument, in particular to a root canal drilling and grinding system with an auxiliary positioning guide plate, which is used for root canal treatment of a patient tooth and comprises a clamping piece, a guide piece, a mobile phone and a support type guide plate; the guide piece comprises a guide piece body, a central hole and a guide post; the central hole is arranged at the center of the guide piece body, and the guide posts are symmetrically arranged at two ends of the guide piece body by taking the central hole as the center; the mobile phone is provided with a needle which passes through the central hole; the clamping piece clamps and fixes the guide piece on the mobile phone; the support type guide plate comprises a columnar support and a retainer connected to the columnar support; the retainers are coated on the retaining teeth to fix the columnar brackets; guide post slots are symmetrically arranged on two sides of the affected tooth of the fixed columnar support, and guide post slot cavities matched with the guide posts are formed in the guide post slots. Compared with the prior art, the utility model solves the problems of poor guiding accuracy, small drilling and grinding operation space, high difficulty and narrow overflow discharge channel in the prior art.

Description

Root canal drilling and grinding system with auxiliary positioning guide plate

Technical Field

The utility model relates to a root canal treatment instrument, in particular to a root canal drilling and grinding system with an auxiliary positioning guide plate.

Background

Root canal treatment is the most common clinical treatment for pulp and periapical diseases, and aims to remove inflammatory or necrotic pulp, disinfect the infected root canal, and promote healing of root tip Zhou Bingbian. Opening of the medullary cavity and exposing of the root canal orifice are the primary steps of treatment, and are the preconditions and basis for subsequent root canal disinfection and root canal filling.

In general, a clinician performs pulp opening and exploration of a root canal orifice according to the anatomical form of a pulp cavity and a pulp opening hole of a tooth in combination with clinical experience and hand feeling. However, due to individual differences in teeth, variations in the root canal, and calcification of the pulp cavity and root canal due to aging or inflammation, clinicians need to precisely open the pulp and locate the calcified root canal orifice with the aid of auxiliary inspection and devices.

In the prior art, a cone beam X-ray computed tomography (CBCT) system is widely applied to oral clinical treatment, and doctors can judge the number of root canals, the positions of root canal orifices, the calcification degree of medullary cavities and root canals according to the CBCT three-dimensional image result, so that a certain guiding auxiliary effect is achieved in operation. In recent years, various digital guide plates have appeared to successfully convert the three-dimensional guiding function of image pictures into a physical auxiliary device, and doctors can accurately control the drilling and grinding directions by virtue of guide holes/columns in the guide plates. The synthesis of the digital guide plate firstly obtains a CT digital three-dimensional model through a CBCT image section, simultaneously utilizes an optical digital model obtained by an intraoral optical impression scanner, registers the CT digital three-dimensional model and the optical digital model to synthesize an integral digital three-dimensional model, and then utilizes a 3D printing technology to manufacture the guide plate.

The digital guide plate solves the problems of experience and hand feeling operation to a certain extent, but has some problems, most guide plates are fully covered dental face type guide plates, the operation space of a molar area is narrow, the thickness of the guide plate occupies a certain space, and the operation difficulty is increased. In addition, the guiding hole/post on the baffle is usually with the purpose of drill point diameter matching in order to reach the control direction, but the guiding hole diameter is comparatively narrow, and the water spray of dentistry high-speed cell-phone can't fully enter into the root canal in, leads to boring and grinding the position and is difficult to obtain abundant cooling, simultaneously, and aperture is narrow also can lead to the piece waste liquid to arrange the overflow difficulty, and then leads to the drill point to hinder the power and can't bore down and grind, the field of vision is fuzzy. Although the problems can be solved by adding a chip overflow channel, adding or opening a large tooth surface exposure hole and the like, the method can reduce the accuracy of guiding holes/columns, has lower overflow efficiency and still can not well improve the drilling and grinding efficiency and effect. In addition, the laser replaces the guide hole of the guide plate to guide the marrow opening direction, so that the tooth surface opening can be realized, but the laser has higher cost, and the guide device has larger volume and is not suitable for conventional use.

Therefore, a novel digital guide plate needs to be developed to solve the problems of high operation difficulty, narrow overflow channel and poor guiding accuracy, so as to better realize calcification and establishment of a variant root canal entrance.

Disclosure of Invention

The utility model aims to solve at least one of the problems, and provides a root canal drilling and grinding system with an auxiliary positioning guide plate, which is used for root canal treatment, so as to solve the problems of poor guiding accuracy, small drilling and grinding operation space, high difficulty and narrow overflow discharge channel in the prior art, and better realize establishment of calcification and variant root canal entrance.

The aim of the utility model is achieved by the following technical scheme:

a root canal drilling and grinding system with an auxiliary positioning guide plate is used for root canal treatment of a patient's teeth and comprises a clamping piece, a guide piece, a mobile phone and a support type guide plate;

the guide piece comprises a guide piece body, a central hole and a guide post; the central hole is formed in the center of the guide piece body, and the guide posts are symmetrically arranged at two ends of the guide piece body by taking the central hole as the center;

the mobile phone is provided with a needle which passes through the central hole; the clamping piece clamps and fixes the guide piece on the mobile phone;

the support type guide plate comprises a columnar support and a retainer connected to the columnar support; the retainer is coated on the retaining teeth to fix the columnar bracket; guide post slots are symmetrically arranged on the two sides of the affected tooth of the fixed columnar support, and guide post slot cavities matched with the guide posts are formed in the guide post slots;

the guide post is inserted into the guide post slot cavity to guide the direction of the needle.

Preferably, the clamping piece is fixed with a retaining claw which is arranged at intervals, and a bulge is arranged near the free end of the retaining claw; the guide piece further comprises a retention buckle arranged on the guide piece body, the retention buckle and the guide post are arranged in a reverse mode, and a groove is formed in the position, close to the free end, of the retention buckle; the retaining claw is arranged around the mobile phone and is clamped with the groove of the retaining buckle through the protrusion of the retaining claw, so that the guide piece is clamped and fixed on the mobile phone. The guide piece is clamped and fixed on the mobile phone through the clamping piece, and can be quickly disassembled and installed according to the requirement; the external clamping connection can not influence or change the original mobile phone structure, and the external clamping connection can be used as an external accessory to be matched with the existing mobile phone.

Preferably, the surface of the guide post is marked with a millimeter scale. The drilling and grinding depth can be judged through the scale of the millimeter scale during drilling and grinding, so that a doctor can conveniently control the drilling and grinding process according to the design.

Preferably, the mobile phone further comprises a water storage cavity arranged in the mobile phone, and the water storage cavity is communicated to the free end of the car needle through a water spraying pipeline. Cooling water in the water storage cavity is sprayed out from the needle head part along the spray pipe to cool the drilled holes; the water outlet of the water spraying pipeline is directly arranged at the needle head of the vehicle, so that cooling water can fully enter the drilled and ground holes, and the cooling water can be fully cooled.

Preferably, the guide member further comprises a suction hole and a suction attachment port; the suction hole surrounds the central hole and is arranged on the guide piece body, and the suction device connecting port is arranged on the side edge of the guide piece body; the suction hole and the suction device connection port are communicated with the inside of the guide piece body. The suction hole surrounds the central hole and is communicated with the inner pipeline, the further suction device connecting port can be connected with the strong suction device of the dental chair through the pipeline, and therefore when grinding and drilling are carried out, the strong suction device can discharge the chip waste liquid generated by grinding and drilling through the suction device connecting port, the inner pipeline and the suction hole.

Preferably, the mobile phone further comprises an aspirator handpiece connection port arranged at the side of the mobile phone; the aspirator handpiece connection port is communicated to the free end of the needle through an aspiration pipeline. The suction device head connecting port is further connected with a strong suction device pipeline of the dental chair, and when the drill is ground, the strong suction device discharges the chip waste liquid generated by the drill through a suction port, a suction pipeline and the suction device head connecting port which are arranged on the needle head part of the vehicle to drill holes; because the waste liquid is directly arranged at the bit head, most of generated waste liquid can be discharged out of the drilling and grinding holes in time, and the phenomenon that waste liquid chips are accumulated to cause additional resistance to downward drilling and grinding is avoided.

Preferably, the bracket guide forms a face-type retention.

Preferably, the retention teeth are selected from the group consisting of teeth on either side of the dentition centerline and not having teeth, including one tooth each in the mesial-distal region of the having teeth and at least one tooth having teeth on opposite sides of the dentition centerline. The columnar support is connected with the retainer to form a quadrilateral surface type retainer, so that the guide plate is integrally and stably fixed on the dentition, and the guide plate is prevented from shaking, tilting and dislocating in use.

Preferably, the retainer is applied to the retaining teeth in the form of a partial crown, with the retaining teeth being undercut on the buccal and lingual sides, andthe facial fossa is used for obtaining stable retention. The retainers closely fit the cheeks, tongue/palate, and/or the @ of the retaining teeth>The supporting points form quadrilateral surface type retention, and the retention bodies are connected by columnar brackets to form a firmly fixed bracket type guide plate.

Preferably, the columnar support is not attached to soft tissues of the oral cavity, so that the damage to the soft tissues of the oral cavity caused by the support guide plate in the installation and use processes is avoided.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The personalized guide plate used in the utility model is a bracket guide plate, the direction of the needle is controlled by the cooperation of the guide post and the guide post groove, and the periphery of the needle is free from the limit of guide holes/channels, thus the guide plate is an innovative sleeveless guide plate. The sleeveless guide plate has the advantages that:

a) The water inlet and the water outlet are smooth: when the sleeveless guide plate is used, the affected tooth surface is open and is not shielded by the guide plate, the cooling water of the high-speed mobile phone can fully contact the tooth surface, and the chips and waste liquid can be discharged smoothly. The water outlet and the suction port which are matched with the needle head part of the turning machine can be directly aligned with the drilled and ground hole for cooling, and chips and waste liquid of the drilled and ground hole can be sucked back in time.

b) The visual field is wide: the surface of the affected tooth is not covered by the guide plate, so that doctors can directly see the affected tooth, and the doctor can conveniently operate and observe the affected tooth. The millimeter scale arranged on the guide post is matched to further facilitate the doctor to confirm the drilling and grinding progress.

c) Accurately controlling the marrow opening direction: when the needle is in drilling and grinding, a metal ring and a guide hole/channel are not arranged around, a certain interval is reserved between the guide column and the guide column groove and the needle, the guide column is not in direct contact with the needle, and the problem of direction deviation caused by the fact that the guide hole is broken by the needle high-speed drilling and grinding is avoided.

d) The length of the needle is not limited: because the affected tooth surface is covered by the guide plate, no additional thickness is generated, a lengthened needle is not needed, the operation of the rear tooth area is more convenient, and the applicability and the convenience are improved.

(2) According to the utility model, the guide piece fixed on the high-speed mobile phone is provided with the suction hole, so that generated scrap waste liquid can be sucked in time while the high-speed mobile phone drills and grinds, the operation visual field is clearer, in addition, a saliva aspirator is not required to be additionally placed, and the comfort level of treatment of patients is improved.

(3) According to the utility model, the needle head can spray water, so that cooling water can fully enter into the root canal, effectively contacts the root canal wall, and prevents the thermal dental tissue from being broken. Meanwhile, the needle head can realize negative pressure suction, can rapidly suck waste liquid and fragments around a drilling and grinding point in a root canal, prevent the waste liquid from being accumulated at the bottom of a drilling and grinding channel, and prevent the drill needle from being blocked and being incapable of drilling and grinding downwards; by matching the suction holes around the central hole of the guide piece, the waste liquid and the scraps generated by drilling and grinding can be rapidly and fully discharged.

(4) The personalized bracket type guide plate is in a surface type retention mode, adopts a partial crown type, has a position of different work with the design of the movable denture bracket of the oral cavity, has good stability, has small area of covering the denture surface and has enough operation space.

(5) The guide post is provided with the millimeter scale, so that the drilling and grinding depth of the needle can be indicated, and the calcified root canal medullary cavity access depth determined by combining the three-dimensional image model is convenient for a clinical operator to accurately and rapidly find a root canal orifice.

Drawings

FIG. 1 is a schematic diagram of an exploded view of the structure of the present system;

FIG. 2 is a schematic side view of the system after assembly and fixation;

FIG. 3 is a schematic diagram of a front view of a portion of the system after assembly and fixation;

FIG. 4 is a schematic diagram of the internal structure of a mobile phone;

FIG. 5 is a schematic view of the structure of the bracket guide;

in the figure: 1-retention fingers; 2-retention clip; 3-guiding columns; 4-a central hole; 5-aspirator connection port; 6-a guide body; 7, turning a needle; 8-a suction hole; 9-aspirator handpiece connection port; 10-a water spraying pipeline; 11-suction piping; 12-a water storage cavity; 13-a guide post slot cavity; 14-a guide post slot; 15-suffering from tooth; 16-retainers; 17-column shaped bracket.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples.

Example 1

1-5, a root canal drilling and grinding system with auxiliary positioning guide plates is used for root canal treatment of a patient tooth 15 and comprises clamping pieces, guide pieces, mobile phones and support type guide plates;

the guide comprises a guide body 6, a central hole 4 and a guide post 3; the central hole 4 is arranged at the center of the guide piece body 6, and the guide posts 3 are symmetrically arranged at two ends of the guide piece body 6 by taking the central hole 4 as the center;

the mobile phone is provided with a needle 7, and the needle 7 passes through the central hole 4; the clamping piece clamps and fixes the guide piece on the mobile phone;

the bracket guide plate comprises a columnar bracket 17 and a retainer 16 connected to the columnar bracket 17; the retainer 16 is wrapped on the retaining teeth to fix the columnar bracket 17; guide post slots 14 are symmetrically arranged on two sides of the affected tooth 15 of the fixed columnar support 17, and guide post slot cavities 13 matched with the guide posts 3 are formed in the guide post slots 14;

the guide post 3 is inserted into the guide post slot cavity 13 to guide the direction of the needle 7.

More specifically, in the present embodiment:

as shown in fig. 1-3, the drilling and grinding part of the positioning system is integrally formed by three parts, including a clamping piece, a guide piece and a mobile phone. The clamping piece has the main function of firmly clamping and fixing the guide piece on the mobile phone head.

The clamping piece is fixedly provided with 4 circumferentially arranged retention claws 1 on the body, and the space formed inside the retention claws 1 is just matched with the back shape of the mobile phone head. The position of the retaining claw 1 close to the free end extends to two sides to form small bulges for firmly clamping and fixing.

The guide comprises a guide body 6, a guide column 3 arranged on the front surface of the guide body 6 and a retention buckle 2 arranged on the back surface of the guide body 6. The retaining buckle 2 is arranged corresponding to the retaining claw 1 of the clamping piece, the formed shape is matched with the front shape of the mobile phone head, and a pair of symmetrical grooves are arranged at the position, close to the free end, of the retaining buckle 2 and are matched with the protrusions of the retaining claw 1 in a clamping mode (the retaining buckle 2 of the guide piece shown in fig. 1 only draws parts, is actually matched with the number, the position and the shape of the retaining claw 1 of the clamping piece, and can be wrapped outside the mobile phone head). The guide piece is clamped and fixed by the back of the mobile phone through the fixing claw 1, so that the guide piece can be fixed on the front surface of the mobile phone head. The center of the guide body 6 is provided with a center hole 4 which can allow the needle 7 fixed on the front of the mobile phone head to pass through. The guide posts 3 are arranged in pairs with the central hole 4 as the center, are parallel and symmetrical, are 20mm apart from each other, and the outer diameter of a single guide post 3 is 2mm, and are used for being matched with a bracket type guide plate to realize guiding and guiding. Outside the central hole 4, still be provided with annular suction hole 8 around central hole 4, offered a aspirator connector 5 in the side of guide body, this aspirator connector 5 is linked together with annular suction hole 8 through inside pipeline, during the use, with this aspirator connector 5 through the strong aspirator that the pipeline is connected to on the dental chair, can in time attract the piece waste liquid that produces in the brill grinding process through suction hole 8 and discharge brill grinding hole. Further, a millimeter scale is further arranged on the surface of the guide post 3, and when the marrow is opened, the depth of the downward drilling and grinding of the needle 7 is judged according to the millimeter scale on the guide post 3.

The mobile phone comprises a water storage cavity 12 arranged in the mobile phone, and the water storage cavity 12 is communicated to the head of the mobile phone 7 through a water spraying pipeline 10 in the mobile phone, besides the mobile phone 7 arranged at the machine head, as shown in fig. 4, so that water flow can be directly sprayed out from the needle head of the mobile phone 7 to a drilled and ground hole during drilling and grinding. The water spraying pipeline 10 is connected with a miniature water pump in the prior art, and cold water in the water storage cavity 12 is sprayed out by the water spraying pipeline 10. In other embodiments, the water storage chamber 12 may also be connected to an external water source to form a continuous spray of water, as desired, without being limited by the size of the water storage chamber 12. In addition, still be provided with aspirator aircraft nose connector 9 at the side at cell-phone aircraft nose position, this aspirator aircraft nose connector 9 is through the inside negative pressure suction pipeline 11 intercommunication of cell-phone to car needle 7 head, when boring and grinding, passes through the strong aspirator on the pipe connection tooth chair with aspirator aircraft nose connector 9 for boring and grinding the debris waste liquid that produces in-process can in time be through suction pipeline 11 and aspirator aircraft nose connector 9 discharge bore and grind the hole.

The bracket guide is shown in fig. 5 as being secured within the mouth around the patient's teeth 15. The bracket type guide plate body is provided with retainers 16 and a columnar bracket 17 connected with each retainer 16, the retainers 16 are in the form of partial crowns, the cheek tongue side of the retaining teeth is used for undercut, andfacial fossa, and closely fits the cheeks, tongue/palate, and +.>The surfaces and the fulcrums form quadrilateral surface type retention, stable retention is obtained, the guide plate is integrally and stably fixed on the dentition, and the guide plate is prevented from shaking, tilting and dislocating in use. The columnar brackets 17 on the two sides of the affected tooth 15 are provided with guide post slots 14, the guide post slots 14 are provided with guide post slot cavities 13 matched with the guide posts 3, and the guide posts 3 are inserted into the guide post slot cavities 13 to control and guide the drilling and grinding directions of the turning needle 7.

The bracket type guide plate is a personalized guide plate customized according to the oral dentition and the suffering tooth 15 conditions of a patient and is prepared by 3D printing, and the method specifically comprises the following steps:

CBCT scanning is carried out on the affected teeth 15 before operation, a CT digital three-dimensional model is obtained through image reconstruction, and the marrow cavity access direction of the calcified root canal is determined according to the model. According to the tooth position design support type guide plate of the affected tooth 15, when the fixed teeth are selected, 1 fixed tooth is respectively arranged in the middle and the far of the affected tooth 15, and 1 to 2 fixed teeth are selected on the opposite sides of the center line of the dentition according to the position and the condition of the affected tooth 15. The retention teeth and the affected teeth 15 are scanned by an intraoral optical scanner to obtain an optical digital three-dimensional model, and an integrated three-dimensional model is constructed by combining the CT digital three-dimensional model. On this model, the central axis of calcified root canal is extended toThe surface is the marrow cavity entrance way, the extension line and +.>The intersection point is the drilling and grinding point of the turning needle 7, and is +.>Drawing a straight line which passes through the drilling and grinding point and is perpendicular to the connection line of the alveolar ridge crest, wherein two symmetrical points which are 10mm away from the drilling and grinding point on the straight line are the openings of the guide post slot 14, and drawing two straight lines which are parallel to the medullary cavity entrance way respectively through the two openings are the guide post slot 14The central axis is centered on the axis, the cylindrical body with the radius of 1mm is the guide post slot cavity 13, the guide post slot 14 is designed according to the position of the guide post slot cavity 13, the cylindrical supports 17 on two sides of the affected tooth 15 are curves connecting the near-far-middle retention body 16 and the guide post slot 14, the curves are connected with other retention teeth to form the cylindrical supports 17, and the need of paying attention to the fact that the cylindrical supports 17 are far away from soft tissues in the oral cavity as much as possible is needed. And 3D printing processing and manufacturing are carried out after the guide plate design is finished, so that the personalized customized bracket guide plate is obtained.

According to the needs, the root canal positioning system is arranged among different patients, the metal clamping piece, the guide piece and the needle 7 can be reused after being sterilized at high temperature and high pressure, and the personalized guide plate is only required to be designed and replaced according to the situation of the suffering teeth 15.

The root canal positioning system realizes the control of the drilling and grinding direction of the high-speed mobile phone through the guide post 3 on the high-speed mobile phone and the guide post slot 14 on the support type guide plate, and the scale on the guide post 3 can indicate the drilling and grinding depth. The guide body 6 is connected with a strong aspirator of the dental treatment chair by a hose, and when the high-speed mobile phone drills, scraps and waste liquid generated on the surface of teeth are rapidly sucked by the suction holes 8 of the guide body 6 and discharged through the aspirator connecting port 5. The water spraying pipeline 10 and the suction pipeline 11 are arranged in the needle 7, and are respectively connected with the water storage cavity 12 and the strong dental chair suction device through the connecting pipeline in the machine head, so that the head of the needle 7 has the functions of water spraying and negative pressure suction and is used for sucking waste liquid and chips in the deep part of the root canal.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims (10)

1. The root canal drilling and grinding system with the auxiliary positioning guide plate is used for drilling and grinding a root canal of a patient tooth (15) and is characterized by comprising a clamping piece, a guide piece, a mobile phone and a support type guide plate;

the guide piece comprises a guide piece body (6), a central hole (4) and a guide post (3); the center hole (4) is formed in the center of the guide piece body (6), and the guide posts (3) are symmetrically arranged at two ends of the guide piece body (6) by taking the center hole (4) as the center;

the mobile phone is provided with a needle (7), and the needle (7) passes through the central hole (4); the clamping piece clamps and fixes the guide piece on the mobile phone;

the support type guide plate comprises a columnar support (17) and a retainer (16) connected to the columnar support (17); the retainer (16) is coated on the retaining teeth to fix the columnar bracket (17); guide post slots (14) are symmetrically arranged on two sides of the affected tooth (15) of the fixed columnar support (17), and guide post slot cavities (13) matched with the guide posts (3) are formed in the guide post slots (14);

the guide post (3) is inserted into the guide post slot cavity (13) to guide the direction of the turning needle (7).

2. The root canal drilling and grinding system with the auxiliary positioning guide plate according to claim 1, wherein the clamping piece is fixedly provided with a fixing claw (1) which is arranged at intervals, and the fixing claw (1) is provided with a bulge close to the free end; the guide piece further comprises a retention buckle (2) arranged on the guide piece body (6), the retention buckle (2) and the guide column (3) are reversely arranged, and a groove is formed in the position, close to the free end, of the retention buckle (2); the retaining claw (1) is arranged around the mobile phone, and the guide piece is clamped and fixed on the mobile phone through the protruding of the retaining claw (1) and the groove of the retaining buckle (2).

3. A root canal drilling and grinding system with auxiliary positioning guide plate according to claim 1, characterized in that the guide post (3) surface is marked with millimeter scale.

4. The root canal drilling and grinding system with the auxiliary positioning guide plate according to claim 1, wherein the mobile phone further comprises a water storage cavity (12) arranged in the mobile phone, and the water storage cavity (12) is communicated to the free end of the needle (7) through a water spraying pipeline (10).

5. A root canal drilling system with auxiliary positioning guide plate according to claim 1, characterized in that the guide further comprises suction holes (8) and suction attachment ports (5); the suction hole (8) is arranged on the guide piece body (6) around the central hole (4), and the suction device connecting port (5) is arranged on the side edge of the guide piece body (6); the suction hole (8) is communicated with the suction device connecting port (5) in the guide piece body (6).

6. The root canal drilling and grinding system with the auxiliary positioning guide plate according to claim 1, wherein the mobile phone further comprises an aspirator handpiece connecting port (9) arranged at the side of the mobile phone; the aspirator handpiece connection port (9) is communicated to the free end of the needle (7) through an aspiration pipeline (11).

7. A root canal drilling system with an auxiliary positioning guide as claimed in claim 1, wherein said bracket guide forms a face-type retention.

8. The endodontic system with auxiliary positioning guide as claimed in claim 7, wherein said retention teeth are selected from the group consisting of teeth on both sides of the dentition center line and not having teeth (15), including one tooth in the near and far of the having teeth (15) and at least one tooth of the having teeth (15) on the opposite side of the dentition center line.

9. A root canal drilling system with auxiliary positioning guide according to claim 1 or 8, wherein the retainers (16) are applied to the teeth in the form of partial crowns.

10. A root canal drilling and grinding system with an auxiliary positioning guide plate according to claim 1, wherein the columnar bracket (17) is not attached to soft tissues of the oral cavity.