CN215458895U

CN215458895U - 3D prints supplementary orthopedic treatment operation baffle of accelerating osteogenesis of periodontal

Info

Publication number: CN215458895U
Application number: CN202121735289.3U
Authority: CN
Inventors: 孙江
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-11
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a 3D printed periodontal auxiliary accelerated osteogenesis orthodontic treatment surgical guide plate, which relates to the technical field of medical auxiliary instruments, and is characterized in that a 3D printing technology is adopted to manufacture the periodontal auxiliary accelerated osteogenesis orthodontic treatment surgical guide plate suitable for flap-turning, a guide plate body can be attached and retained to a tooth position of an operation area, and a guide groove is designed by combining CT to indicate that a part of an alveolar bone needs to be subjected to cortical bone dissection. This baffle design has the guide slot that vertical cortex of bone matter was cut and the guide slot that horizontal cortex of bone matter was cut, and the design of guide slot has improved the cortex of bone matter and has cut efficiency, and then has improved the operation speed, can realize going the accurate location that cortex of bone matter cut the position to each needs, has ensured the operation security. A blood transport hole is also established on the cortical bone on the surface of the tooth root corresponding to the operation area, so that preparation can be made for bone augmentation bone grafting, the positioning of the depth and direction of the drilled hole can be realized, and the injury of the tooth root, nerves and important anatomical structures caused by the incised cortical bone and the over-deep or direction deviation of the drilled hole can be prevented.

Description

3D prints supplementary orthopedic treatment operation baffle of accelerating osteogenesis of periodontal

Technical Field

The utility model relates to the technical field of medical auxiliary instruments, in particular to a 3D printing periodontal auxiliary accelerating osteogenesis orthodontic treatment surgical guide plate.

Background

With the development of economy, people have attracted extensive attention to the problems of malocclusion such as higher and higher aesthetic requirements, irregular dentitions, abnormal upper and lower arch occlusal relationship and the like, and more patients seeking orthodontic treatment, particularly adult patients, have been increasing in proportion in orthodontic treatment year by year. However, adult orthodontic treatment is difficult. Firstly, the growth and development of adults are stopped, the bone metabolism and alveolar bone reconstruction are slow, the required correction time is longer than that of children, clinically, the adult correction treatment has little effect in a short period due to the fact that the tooth moving speed is too slow, secondly, adult patients often have the problems of insufficient bone quantity around teeth and the like, the tooth moving in the orthodontic treatment easily causes serious complications such as alveolar bone cracking and the like, and the problems become the main reasons for giving up or interrupting the orthodontic treatment for adults. Therefore, how to accelerate the movement of adult teeth, shorten orthodontic treatment time and increase bones at the positions with insufficient periodontal bone mass has become a hot spot of domestic and foreign research in recent years for protecting driving of orthodontic treatment.

At present, periodontal assisted accelerated osteogenic orthodontic treatment (PAOO) technology is proven to be capable of effectively accelerating tooth movement in clinical and basic research aspects, and bone increment is carried out at sites with insufficient bone mass, so that the application in clinical is increasingly wide.

PAOO operation baffle among the prior art includes the baffle body, and the baffle body includes tooth face retention board and alveolar bone retention board, is provided with the dental crown binding face of laminating with the dental crown on the tooth face retention board, is provided with the guiding hole that is used for drilling the alveolar bone cortex on the alveolar retention board.

When utilizing this kind of PAOO operation baffle to carry out the PAOO operation, need carry out drilling many times under the guide of guiding hole and just can realize alveolar bone cortex and open, this kind of mode of opening, the bone cortex is opened inefficiency, and then has influenced operation speed. In addition, in PAOO operation, except that the operation of cutting open the cortex of bone is carried out at the alveolar bone, the operation of cutting open the cortex of bone is carried out between the roots of teeth and at the position such as the root of the operation area, and the PAOO operation guide plate in the prior art can not carry out accurate positioning to each position that needs to cut open the cortex of bone, and this not only seriously influences the efficiency of cutting open the cortex of bone, still probably causes the operation risk. In addition, prior art PAOO surgical guides also do not have a design to support bone augmentation.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide plate, which is manufactured by adopting a 3D printing technology and is suitable for periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide plates after flap turning, wherein a guide plate body can be attached and retained at a tooth site of an operative area, a positioning groove is designed by combining CT to indicate a part of an alveolar bone needing cortical bone dissection, a guide groove for longitudinal cortical bone dissection is designed at a position 2mm below the crest of the alveolar bone in the operative area, a transverse cortical bone dissection guide groove is designed at a position 2mm to 4mm below the root of a dental apex area, and a blood circulation hole is designed at the cortical bone in the operative area.

Therefore, the utility model provides the following technical scheme:

the utility model provides a 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide plate, which comprises: a guide plate body adopting 3D printing;

the guide plate body comprises a tooth surface retaining plate which can be attached and fixed on the tooth position of the operation area and an alveolar bone retaining plate which is opposite to the cortex of the alveolar bone of the operation area;

the alveolar bone fixing plate is provided with a longitudinal guide groove for guiding the longitudinal incision of the cortical bone of the alveolar bone between the pressure roots, a transverse guide groove for guiding the transverse incision of the cortical bone of the apical area of the tooth root and a plurality of blood transportation holes corresponding to the cortical bone of the surface of the tooth root of the operation area.

Further, the transverse guide groove is arranged at the root of the apical area of the tooth with the distance of 2mm-4 mm.

Further, the longitudinal guide groove is arranged at a position 2mm below the crest of the alveolar bone in an operation area.

Further, the tooth surface retention plate is thickened by 2 mm.

Furthermore, the tooth surface fixing plate is provided with an occlusal surface corresponding to the opposite jaw teeth.

Furthermore, a dental crown binding surface which is bound with the dental crown in the operation area is arranged on the dental surface retention plate.

Further, the alveolar bone fixing plate extends to the root of the apical area on the buccal side by 2mm-4 mm.

Furthermore, the tooth surface fixing plate can avoid orthodontic brackets on the labial and buccal surfaces.

The utility model has the advantages and positive effects that:

(1) according to the PAOO surgical guide plate, the longitudinal grooves are formed in the cortical bone corresponding area of the alveolar bone between tooth roots, the ultrasonic osteotomy is accurately guided to perform longitudinal incision for incising the cortical bone between the tooth roots, the depth and the direction of the ultrasonic osteotomy can be controlled, and the operation of the longitudinal incision is simpler; and the tail end of the longitudinal guide groove is opened, so that the ultrasonic osteotome and the high-speed mobile phone have the functions of water drainage and heat dissipation.

(2) According to the PAOO surgical guide plate, the transverse guide groove is formed in the root side of the apical area by 2mm, the ultrasonic osteotome is accurately guided to perform a transverse incision for cutting the cortical bone at the apical area, the cortex of the bone of the root side can be loosened, the local accelerated repair phenomenon of the alveolar bone of the root side is accelerated, and tooth movement is promoted. In addition, the tip area art district is narrow, and the design of transverse incision is more convenient, and the efficiency is cut open to multiplicable cortex of bone, promotes operation speed.

(3) The PAOO surgical guide plate is provided with a plurality of blood transport holes corresponding to the cortical bone on the surface of the tooth root in the surgical area, and guides the ultrasonic osteotome to establish the blood transport holes in the area so as to prepare for bone augmentation bone grafting. In addition, the blood transportation hole can realize the positioning of the drilling depth and direction in the drilling process, prevent the injuries of tooth roots, nerves and important anatomical structures caused by the cutting of cortical bone and the over-deep or directional deviation of the drilling, reduce the incidence rate of postoperative complications and further improve the safety of operations.

(4) The PAOO surgical guide plate is thickened at the crown fixing part of the surgical area, and the occlusal surface corresponding to the jaw teeth is designed, so that the upper and lower dentitions are occluded at the crown fixing part of the guide plate in the surgical process, and a patient does not need to open the mouth by himself in the surgical process, so that the comfort degree in the surgery is improved, and the pain of the patient is relieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a PAOO surgical guide in an embodiment of the present invention;

FIG. 2 is a side view of a PAOO surgical guide plate after flap-turning in an embodiment of the present invention:

FIG. 3 is a top view of a PAOO surgical guide in an embodiment of the present invention;

FIG. 4 is a 3D view of the longitudinal guide channel of the PAOO surgical guide in an embodiment of the present invention;

FIG. 5 is a 3D view of the lateral guide channel of the PAOO surgical guide in an embodiment of the present invention;

in the figure, 1, a guide plate body; 2. a tooth surface retention plate; 3. alveolar bone position-retaining plates; 4. a blood transport hole; 5. A lateral guide groove; 6. a longitudinal guide groove; 7. surgical site (crown); 8. alveolar bone of operation area; 9. an orthodontic bracket.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1-3, a schematic structural diagram of a 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to an embodiment of the present invention is shown. This 3D prints supplementary orthopedic treatment operation baffle of accelerating osteogenesis of periodontal includes:

the guide plate body 1 is printed in a 3D mode;

wherein, the guide plate body 1 comprises a tooth surface retaining plate 2 which can be attached and fixed on a tooth position 7 of an operation area and an alveolar bone retaining plate 3 which is opposite to the cortical bone of an alveolar bone 8 of the operation area;

the tooth surface retention plate 2 is thickened by about 2mm, a dental crown binding surface which is attached to a dental crown in an operation area and an occlusal surface corresponding to the jaw teeth are arranged on the tooth surface retention plate 2, and the orthodontic bracket 9 can be avoided on the labial and buccal surfaces of the tooth surface retention plate 2.

The alveolar bone fixing plate 3 extends to the root of the apical area on the buccal side by 2mm-4 mm.

As shown in fig. 4, the alveolar bone fixation plate 3 is provided with a longitudinal guide groove 6 for guiding longitudinal cutting of cortical bone of the alveolar bone between roots; the longitudinal guide groove 6 is placed 2mm below the crest of the alveolar bone in the operative area. The longitudinal grooves are formed in the cortical bone corresponding area of the alveolar bone between the tooth roots, so that the ultrasonic osteotome can be accurately guided to perform longitudinal incision for cutting the cortical bone between the tooth roots, the depth and the direction of the ultrasonic osteotome can be controlled, the operation is simpler, the wound of the made longitudinal incision is small, compared with a conventional incision mode in which multiple drilling needs to be performed, the cortical bone incision efficiency can be increased through the longitudinal incision, and the operation speed can be greatly increased; and the tail end of the longitudinal guide groove is opened, so that the ultrasonic osteotome and the high-speed mobile phone have the functions of water drainage and heat dissipation.

As shown in fig. 5, the alveolar bone fixation plate 3 is further provided with a transverse guide groove 5 for guiding the transverse incision of cortical bone of the apical area of the tooth; the transverse guide groove 5 is arranged at the root of the apical area of the tooth root at 2mm-4 mm. Preferably, a transverse guide groove is arranged 2mm away from the root of the apical area of the tooth, and can accurately guide the ultrasonic osteotome to perform a transverse incision for cutting the cortical bone at the root of the surgical area. Because the apical area art district is narrow, the degree of difficulty of punching is very big, and the design of transverse incision compares the design of punching and implements more easily, and compares the conventional mode of cutting that need carry out a lot of drilling, can increase bone cortex through transverse incision and cut efficiency, can greatly promote operation speed.

The alveolar bone retention plate 3 is also provided with a plurality of blood transportation holes 4 which are established corresponding to the cortical bone on the surface of the tooth root of the operation area; the blood transport hole 4 can guide the ultrasonic osteotome to establish a blood transport hole in the area to prepare for bone augmentation grafting later. In addition, the blood transportation hole 4 can realize the positioning of the drilling depth and direction in the drilling process, prevent the injuries of tooth roots, nerves and important anatomical structures caused by the cutting of cortical bone and the over-deep or directional deviation of the drilling, reduce the incidence of postoperative complications and further improve the safety of operations.

The PAOO operation guide plate in the embodiment can realize accurate positioning of a pre-performed cortical bone incision part, and improves the efficiency and safety of PAOO operation.

The forming method of the PAOO surgical guide plate in the embodiment comprises the following steps:

step 1: converting cone beam CT data shot by a patient into a DICOM format, and adjusting to a jaw threshold value to reconstruct a jaw model;

step 2: scanning the mouth of a patient by using a 3Shape intraoral scanner to obtain a three-dimensional digital model of dentition including part of mucous membrane;

and step 3: the cone beam CT data and the three-dimensional dentition digital model data are imported into MIMICS 17.0 software for accurate matching, and a jaw bone CT model with high-precision three-dimensional dentition and alveolar bone data fused is obtained;

and 4, step 4: determining the position and direction of a bone cortex cutting cut, a drill bit point and a hole entering direction according to the thickness conditions of cortical bone and cancellous bone, and paying attention to avoid an anatomical structure which is easy to cause iatrogenic injury; and processing the PAOO surgical guide plate model which is designed into an STL file.

And 5: the processed data is imported into a 3D printing device (Form2) and a PAOO surgical guide plate is printed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide comprising: the guide plate body (1) is printed in a 3D mode;

the guide plate body (1) comprises a tooth surface retaining plate (2) which can be attached and fixed on a tooth position (7) of an operation area and an alveolar bone retaining plate (3) which is opposite to the cortex of an alveolar bone (8) of the operation area;

the alveolar bone fixing plate (3) is provided with a longitudinal guide groove (6) for guiding the longitudinal cutting of the cortical bone of the alveolar bone between the tooth roots, a transverse guide groove (5) for guiding the transverse cutting of the cortical bone of the tooth apical area and a plurality of blood transportation holes (4) corresponding to the cortical bone of the tooth root surface of the operation area.

2. The 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, characterized in that the transverse guide groove (5) is provided at the apical area of the tooth root at 2-4mm from the root.

3. 3D-printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, characterized in that the longitudinal guide groove (6) is placed at the operative area 2mm from the crest of the alveolar bone.

4. The 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, characterized in that the facet retention plate (2) is thickened by 2 mm.

5. The 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, wherein the tooth surface retention plate (2) is provided with occlusal surfaces corresponding to the opposing jaw teeth.

6. The 3D-printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, wherein the tooth surface retention plate (2) is provided with a crown abutment surface which abuts against a crown of a surgical area.

7. The 3D-printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, wherein the alveolar bone fixation plate (3) extends to 2mm-4mm root of buccal apical area.

8. The 3D printed periodontal assisted accelerated osteogenesis orthodontic treatment surgical guide according to claim 1, wherein the facet retention plate (2) is capable of avoiding orthodontic brackets (9) on the labial and buccal surfaces.