CN113813072B

CN113813072B - 3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate and preparation method thereof

Info

Publication number: CN113813072B
Application number: CN202111082589.0A
Authority: CN
Inventors: 孙江
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2023-05-16
Anticipated expiration: 2041-09-15
Also published as: CN113813072A

Abstract

The invention discloses a 3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate and a preparation method thereof. The tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate is prepared through a 3D printing technology, the guide plate body can be attached to and fixed on the tooth position of an operation area, a groove and a blood circulation hole are designed by combining cone beam CT and oral scan data, positions of an alveolar bone, which need to be cut and punched by cortical bone, are indicated, important anatomical positions such as tooth roots are prevented from being injured, and the problems of deep and shallow cortical bone cutting and blood circulation hole punching are effectively avoided. The cutter head and drill bit data in the ultrasonic bone knife specification are imported into 3shape software to be accurately matched with the groove and blood transport hole in the operation guide plate, the ultrasonic bone knife cutter head and drill bit are not required to be scanned by using a micro CT, a roller card positioner and other devices are not required to be arranged, the prepared operation guide plate is simple in structure, the purpose of guiding operation to be accurately implemented can be achieved, the guide plate manufacturing difficulty is reduced, the stability of the operation guide plate is improved, and the operation guide plate can be widely popularized clinically.

Description

3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate and preparation method thereof

Technical Field

The invention relates to the technical field of medical equipment, in particular to a 3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate and a preparation method thereof.

Background

With the development of economy, people have received a great deal of attention to the problem of misjaw deformity such as irregular dentition, and more patients requiring orthodontic treatment, and especially the proportion of adult patients seeking orthodontic treatment is increasing year by year. However, adult orthodontic treatment is difficult. Firstly, the growth and development of adults are stopped, bone metabolism and alveolar bone reconstruction are slow, the required correction time is longer than that of children, clinically, due to the fact that the tooth movement speed is too slow, the orthodontic treatment of adults has very little effect in a short period, secondly, adult patients often have the problems of insufficient bone quantity around teeth and the like, and serious complications such as alveolar bone fracture and the like are easily caused when teeth are moved in the orthodontic treatment, and the problems become main reasons for the adults to give up or interrupt the orthodontic treatment. Therefore, how to accelerate the tooth movement of adults, shorten the orthodontic treatment time, and increase the bone mass at the sites with insufficient periodontal bone mass, thereby being a hot spot for research at home and abroad in recent years.

Currently, the acceleration orthodontic treatment (periodontally accelerated osteogenic orthodontics, PAOO) technology of the tooth Zhou Fuchu is proved to be capable of effectively accelerating tooth movement in clinical and basic research aspects, and is increasingly widely applied in clinic when bone increment is carried out at sites with insufficient bone mass.

The existing PAOO surgical guide plate needs to apply a micro CT (computed tomography) technology (Micro Computed Tomography) to scan an ultrasonic bone knife head and a drill bit in the manufacturing process. Micro CT, also called Micro CT and Micro CT, is a non-destructive 3D imaging technology, and can clearly understand the internal microstructure of a sample without damaging the sample, and the largest difference between Micro CT and Micro CT is that the Micro CT has higher resolution and can reach the micron (mum) level. However, the microCT has high radioactive dose, long scanning and three-dimensional reconstruction time and complex technical operation, and increases the manufacturing difficulty of the operation guide plate. And the cost of micro CT is high, the manufacturing cost of the guide plate is increased, and the micro CT is unacceptable to many patients.

In addition, when the micro CT is applied to scan the ultrasonic bone knife head and the drill bit, the advancing positions of the ultrasonic bone knife head and the drill bit are required to be positioned, and the positioning device is more complex in structure, for example, in a Chinese patent CN 202010802920.0-periodontal acceleration bone formation assisted orthodontic treatment operation guide plate system and a forming method thereof, the PAOO operation guide plate is provided with a roller clamp positioner and other positioning devices on an alveolar bone retention plate, and the roller clamp positioner comprises an I-shaped guide rail, a U-shaped slide block, a slide groove, a roller and other complex structures. The PAOO operation guide plate manufacturing difficulty is increased due to the complex positioning device structure, the PAOO operation guide plate with the complex structure is increased due to the fact that the anatomical structure of the operation area is narrow after the PAOO operation turns over, the operation guide plate is unstable, the operation area is difficult to stably position, the 3D printed PAOO operation guide plate with the complex structure is fragile, and the PAOO operation guide plate is easy to break in the operation process.

Disclosure of Invention

In order to solve the problems, the invention provides a 3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate and a preparation method thereof, wherein the guide plate is prepared by a 3D printing technology, a guide plate body can be attached and fixed on a tooth position in an operation area, a groove and a blood transport hole are designed by combining cone beam CT and oral scan data, the position of an alveolar bone needing to be cut and punched by cortical bone is indicated, important anatomical parts such as tooth roots are prevented from being injured, and the problems of deep and shallow cortical bone cutting and blood transport hole punching are effectively avoided. The cutter head and drill bit data in the ultrasonic bone knife specification are imported into 3shape software to be accurately matched with the groove and blood transport hole in the guide plate, the ultrasonic bone knife cutter head and drill bit are not required to be scanned by using a micro CT, a roller card positioner and other devices are not required to be arranged, the prepared PAOO operation guide plate is simple in structure, the purpose of guiding operation to be accurately implemented can be achieved, the guide plate manufacturing difficulty is reduced, the stability of the operation guide plate is improved, and the operation guide plate can be widely popularized clinically.

For this purpose, the invention provides the following technical scheme:

in one aspect, the invention provides a method for preparing a 3D printed tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide plate, which is characterized by comprising the following steps:

step 1, acquiring mouth scan data and cone beam CT data of a patient, and dividing the mouth scan data and the cone beam CT data by using MImics software;

step 2, importing mouth sweep data and cone beam CT data which are segmented by the MImics software into 3shape software, matching the mouth sweep data and the cone beam CT data by using the 3shape software to obtain a three-dimensional reconstructed dentition model, drawing lines on an operation area range by using a drawing tool in the 3shape software, calibrating tooth root positions and tooth surrounding alveolar bone shapes, and generating a first substrate;

step 3, importing ultrasonic bone knife bit data and ultrasonic bone knife bit data into 3shape software;

step 4, measuring a first position and a second position on the first substrate by using a 3shape software measuring tool, drawing a rectangular longitudinal groove at the first position by using a 3shape software drawing tool, and drawing a line at the second position to obtain the tail end of the longitudinal groove; the first position is a position 2-3mm away from the crest of the alveolar ridge; the second position is a position of 2-4mm of the root square of the root apex area; setting the width of the longitudinal groove according to the ultrasonic bone knife head data;

step 5, drawing a rectangular transverse groove at the second position by using a drawing tool of 3shape software; setting the width of the transverse groove according to the ultrasonic bone knife head data;

step 6, measuring and marking out a region with the thickness of the root and the surface cortical bone between the roots being greater than 1mm by using a measuring tool in 3shape software, and drawing a plurality of blood transport holes in the region; setting the diameter of each blood transport hole according to the ultrasonic bone knife drill bit data;

step 7, importing data of a first substrate drawn with a longitudinal groove, a transverse groove and a blood transport hole into 3-matrix software, shearing the longitudinal groove, the transverse groove and a part to be removed in the blood transport hole drawn on the first substrate by using a 3-matrix software shearing tool, and enabling the tail end of the longitudinal groove to be in an opening shape;

and 8, processing the data obtained after the processing of the 3-matrix software into an STL format, and leading the data into 3D printing equipment for 3D printing to obtain the tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate.

Further, the depth of the longitudinal groove is 1-2mm, and the width of the longitudinal groove is 1mm.

Further, the depth of the transverse groove is 1-2mm, and the width of the transverse groove is 1mm.

Further, after step 7, before step 8, the method further includes:

drawing lines on the crown of the dental crown in the operation area by using 3shape software to generate a second substrate with the thickness of 2 mm;

and performing Boolean operation on the second substrate and the first substrate by using 3-matic software to obtain a third substrate with thickened crown side.

Further, step 8 further includes, before processing the data obtained after the 3-matic software processing into the STL format:

the 3-matic software is used for trimming the longitudinal grooves, the transverse grooves and the blood holes, so that the lines of the longitudinal grooves, the transverse grooves and the blood holes are smooth and round and gentle.

Further, the blood transport holes are round holes with the diameter of 1.5mm, the interval between the two blood transport holes is at least 2mm, and the depth is 2mm.

In still another aspect, the invention further provides a 3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment surgical guide manufactured by the manufacturing method of the 3D printing tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment surgical guide.

The invention has the advantages and positive effects that:

(1) According to the PAOO operation guide plate, the micro CT scanning ultrasonic bone knife head and drill bit are not required, the data of the ultrasonic bone knife head and drill bit in the ultrasonic bone knife instruction book can be accurately matched with the sizes of the groove and the blood transport hole in the guide plate by introducing the data of the ultrasonic bone knife head and the drill bit into the software in the drawing process of the 3shape software, the manufacturing mode is simpler and more convenient, the manufacturing difficulty of the guide plate is reduced, and most medical institutions can prepare and apply the ultrasonic bone knife head and drill bit widely, so that the applicability is stronger. In addition, for the patient, the examination cost of using the micro CT in the operation process is reduced, so that the manufacturing cost of the guide plate is reduced.

(2) The PAOO operation guide plate provided by the invention does not adopt devices such as a roller card positioner, is simple in design structure, and only comprises the groove and the blood circulation hole, wherein the groove and the blood circulation hole can accurately indicate the positions of an alveolar bone, which need to be cut and perforated by the cortical bone, so that important anatomical positions such as tooth roots are prevented from being injured, and the problems of deep and shallow cortical bone cutting and blood circulation hole punching are effectively avoided. The PAOO operation guide plate with the simple structure can achieve the purpose of guiding operation accurately, is easy to prepare and can be widely popularized clinically.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

FIG. 1 is a flowchart of a method for manufacturing a PAOO guide plate for 3D printing according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a PAOO surgical guide plate according to an embodiment of the present invention;

FIG. 3 is a side view of a PAOO surgical guide plate after flap over in accordance with an embodiment of the present invention;

FIG. 4 is a top view of a PAOO surgical guide plate according to an embodiment of the present invention;

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

FIG. 6 is a 3D view of a lateral guide channel of a PAOO surgical guide plate in an embodiment of the present invention;

1, a guide plate body; 2. a facing retainer plate; 3. an alveolar bone retaining plate; 4. a blood transport hole; 5. a lateral guide groove; 6. a longitudinal guide groove; 7. surgical site dental (crown); 8. alveolar bone of the operation area; 9. orthodontic brackets.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise 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.

As shown in FIG. 1, a flow chart of a method of manufacturing a 3D printing PAOO surgical guide according to an embodiment of the present invention is shown. The 3D printing PAOO operation guide plate is a PAOO operation guide plate suitable for flap turning, is prepared by adopting a 3D printing technology, can be attached to and fixed on the tooth position of an operation area, is combined with cone beam CT and mouth scan data to design a groove and a blood circulation hole, indicates the position of an alveolar bone where the cortex needs to be cut and punched, prevents important anatomical parts such as tooth roots from being damaged, and effectively avoids the problems of excessive deep and shallow bone cortex cutting and blood circulation hole punching. The preparation method of the 3D printing PAOO operation guide plate comprises the following steps:

and step 1, acquiring mouth scan data and cone beam CT data of a patient, and segmenting the mouth scan data and the cone beam CT data by utilizing MImics software.

Specifically, a Cone Beam CT (Cone Beam CT, for short, CBCT) device (e.g., a slip Cone Beam multifunctional oral CT device) is utilized to shoot the mouth of a patient, cone Beam CT data of the patient is obtained, the Cone Beam CT data shot by the patient is converted into DICOM format, and the DICOM format is adjusted to a jaw threshold value to reconstruct a jaw model (Cone Beam CT data); the patient's mouth was scanned using a 3Shape intraoral scanner to obtain a three-dimensional digitized model of the dentition including part of the mucosa (mouth scan data).

CBCT is a special for maxillofacial region, which uses three-dimensional cone beam X-ray scanning, and has good imaging quality for high resolution region such as dental root canal system, mandible, mandibular nerve canal, temporomandibular joint fine hard tissue structure.

The Mimics software is medical imaging software and can process two-dimensional image data (such as CT and MRI scanning data). The invention firstly uses the mimics software to divide the upper jaw, the lower jaw, the upper teeth and the lower teeth (the purpose of this step is to clearly see the position of the tooth root when trimming finally).

And 2, importing the mouth scanning data and the cone beam CT data which are segmented by the MImics software into 3shape software, matching the mouth scanning data and the cone beam CT data by using the 3shape software to obtain a three-dimensional reconstructed dentition model, drawing lines of an operation area range (comprising an operation area around a dental crown and a dental root) by using a drawing tool in the 3shape software, calibrating tooth root positions and tooth surrounding alveolar bone shapes, and generating a first substrate.

The 3shape software can reconstruct a three-dimensional model after importing the mouth scan data and the CT data, has the function of generating the guide plate, and can design the specific form of the guide plate. The PAOO operation guide plate is designed by utilizing the software, so that the PAOO operation guide plate is rarely researched by utilizing the 3shape software in China at present, and most of the PAOO operation guide plate is planted by utilizing the software, so that the PAOO operation guide plate has great potential in the aspect of preparing the PAOO operation guide plate.

Since the mouth scan data and the cone beam CT data are imported into the 3shape software, the images of the tooth root and the alveolar bone are clearly visible, and on the basis, the measuring tool and the drawing tool in the 3shape software can be used for measuring and drawing the grooves and the blood transport holes.

And step 3, importing the ultrasonic bone knife bit data and the ultrasonic bone knife bit data into 3shape software.

Step 4, measuring a first position on the first substrate by using a 3shape software measuring tool, and drawing a rectangular longitudinal groove at the first position by using a drawing tool of the 3shape software; the first position is a position 2-3mm away from the crest of the alveolar ridge; measuring a second position by using a 3shape software measuring tool, and drawing a line at the second position by using a drawing tool of the 3shape software to obtain the tail end of the longitudinal groove; the second position is a 2-4mm position of the root square of the root tip area; and setting the width of the longitudinal groove according to the ultrasonic bone knife head data.

The 3D model is adjusted to a sagittal position by using 3shape software, a position of 1mm of the thickness of the longitudinal groove of the substrate and a position of 2mm of the longitudinal groove are positioned at the sagittal position by using a 3shape software measuring tool, the depth of the groove is set by referring to the positioned positions, and preferably, the width of the longitudinal groove is set to be 1mm by combining ultrasonic bone knife head data.

Step 5, drawing a rectangular transverse groove at the second position by using a drawing tool of 3shape software; setting the width of a transverse groove according to the ultrasonic bone knife head data;

the depth of the lateral grooves is set to about 1-2mm, preferably the width is set to 1mm, using the same method as described above for drawing the longitudinal grooves.

specifically, circular blood holes with a diameter of 1.5mm are drawn in these areas, the hole-to-hole spacing is set to at least 2mm, the depth is set to about 2mm, and attention is paid to the fact that the blood holes are set to avoid important anatomical sites such as tooth roots which are prone to iatrogenic injury.

And 7, importing the data of the first substrate drawn with the longitudinal grooves, the transverse grooves and the blood transport holes into 3-matrix software, shearing the parts to be removed inside the longitudinal grooves, the transverse grooves and the blood transport holes drawn on the first substrate by using a 3-matrix software shearing tool, and enabling the tail ends of the longitudinal grooves to be in an opening shape.

The 3-matrix software is a three-dimensional Analytical Model (Analytical Model) capable of converting a three-dimensional medical Model from a triangular patch Model to a NURBS curved surface, namely, converting an STL format into a CAD format, and then importing other CAD software for subsequent design. The invention mainly uses 3-matic software to trim, and the first substrate (namely the initial guide plate) can be transparentized by using the 3-matic software, so that the images of the tooth root and the alveolar bone of the operation area can be seen. After being sheared by 3-matrix software, the longitudinal grooves, the transverse grooves and the blood transport holes are hollow, so as to guide the surgical incision and the drilling positions.

And 8, re-drawing lines at the crown part (the area needing to be thickened) of the dental crown in the operation area by using 3shape software to generate a second substrate with the thickness of 2mm, and performing Boolean operation on the second substrate and the first substrate by using 3-matic software to obtain the operation guide plate with the thickened crown part.

Step 8 is the preferred step, through this step can obtain the operation baffle of crown side thickening for in the operation process, upper and lower dentition interlock is at baffle crown side thickening portion, and the patient then need not open one's mouth by oneself, in order to improve the comfort level in the operation, alleviates patient's misery. In a specific implementation, the step is not executed, and 3D printing can be directly performed based on the first substrate, so that the tooth Zhou Fuchu accelerating osteogenic orthodontic treatment operation guide plate is obtained.

And 9, finishing the longitudinal grooves, the transverse grooves and the blood transport holes by a 3-matrix software trimming command to enable lines to be smooth and round and slow, and facilitating subsequent 3D printing and manufacturing.

And step 10, processing the data obtained in the step 9 into an STL format, and leading the STL format into 3D printing equipment (Form 2) for 3D printing to obtain the tooth Zhou Fuchu accelerating osteogenesis orthodontic treatment operation guide plate.

The PAOO operation guide plate in the embodiment does not need to apply micro CT to scan ultrasonic bone knife heads and drill bits, the data of the ultrasonic bone knife heads and the drill bits in the ultrasonic bone knife instruction book can be applied to software in the drawing process of 3shape software, the sizes of grooves and blood transport holes in the guide plate can be accurately matched, the manufacturing mode is simpler and more convenient, the manufacturing difficulty of the guide plate and the manufacturing cost of the guide plate are reduced, most medical institutions can prepare and apply the ultrasonic bone knife heads and the drill bits widely, and the applicability is stronger.

The PAOO operation guide plate in the embodiment does not adopt devices such as a roller card positioner, has simple design structure and only comprises a groove and a blood conveying hole, and the groove and the blood conveying hole can accurately indicate the positions of an alveolar bone, which need to be cut and punched by the cortical bone, prevent important anatomical positions such as the root of a tooth from being injured, and effectively avoid the problems of deep and shallow cortical bone cutting and blood conveying hole punching. The PAOO operation guide plate with the simple structure can achieve the purpose of guiding operation accurately, is easy to prepare and can be widely popularized clinically.

As shown in fig. 2 to 4, the structure of the 3D printing PAOO surgical guide manufactured based on the above manufacturing method is shown. This 3D prints PAOO operation baffle includes:

a guide plate body 1 adopting 3D printing;

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

the dental surface retention plate 2 is thickened by about 2mm, and is provided with a dental crown fitting surface fitting with a dental crown in an operation area and an occlusal surface corresponding to the opposite jaw teeth, and the dental surface retention device 2 can avoid the orthodontic bracket 9 on the labial and buccal surfaces.

The alveolar bone retaining board 3 extends to 2mm-4mm below the root of the buccal root tip region.

As shown in fig. 5, the alveolar bone retaining plate 3 is provided with a longitudinal guide groove 6 for guiding the longitudinal incision of the cortex of the alveolar bone between the roots; the longitudinal guide groove 6 is provided at a position 2-3mm from the crest of the alveolar bone at the operation area, preferably at a position 2mm from the crest of the alveolar bone at the operation area. The longitudinal grooves are formed in the corresponding areas of the bone cortex of the alveolar bone between the tooth roots, so that the ultrasonic bone knife can be accurately guided to perform longitudinal incision of bone cortex incision between the tooth roots, the depth and the direction of the ultrasonic bone knife can be controlled, the operation is simpler, the wound of the longitudinal incision is small, compared with a conventional incision mode of performing multiple drilling, the longitudinal incision can be used for increasing the bone cortex incision efficiency, and the operation speed can be greatly improved; the tail end of the longitudinal guiding groove is provided with an opening, and has the functions of draining water and radiating heat for the ultrasonic osteotome and the high-speed mobile phone.

As shown in fig. 6, the alveolar bone retaining plate 3 is further provided with a lateral guide groove 5 for guiding lateral incision of the cortex of the root tip region; the transverse guide groove 5 is arranged at the root of the root tip area by 2mm-4mm. Preferably, a transverse guiding groove is formed in the root of the root tip area by 2mm, so that the ultrasonic bone knife can be accurately guided to make a transverse incision for cortical bone cutting in the root of the operation area. Because root tip district operation district is narrow, the degree of difficulty of punching is very big, and the design of transverse incision, compare the design of punching and implement more easily, and compare the conventional cutting mode that need carry out many times drilling, can increase the cortical bone through transverse incision and cut efficiency, can greatly promote operation speed.

The alveolar bone retention board 3 is also provided with a plurality of blood transport holes 4 corresponding to the cortex on the tooth root surface of the operation area; the blood holes 4 can guide the ultrasonic osteotome to build blood holes in this area in preparation for bone augmentation bone grafting later. In addition, the blood transport hole 4 can realize the positioning of the depth and direction of the drilling hole in the drilling process, prevent the damage of tooth roots, nerves and important anatomical structures caused by the incision of bone cortex and the too deep drilling hole or the deviation of the drilling hole, reduce the incidence rate of postoperative complications and further improve the safety of the operation.

According to the PAOO operation guide plate in the embodiment, the longitudinal grooves are formed in the corresponding areas of the alveolar bone cortex between the tooth roots, the ultrasonic bone knives are precisely guided to perform longitudinal incision of bone cortex incision between the tooth roots, the depth and the direction of the ultrasonic bone knives can be controlled, so that operation of the longitudinal incision is simpler, compared with the prior art that the guide holes are formed in the corresponding areas of the alveolar bone cortex, the scheme of bone cortex incision is realized through multiple drilling, the bone cortex incision efficiency can be increased through the longitudinal incision, and the operation speed can be greatly improved; the tail end of the longitudinal guiding groove is provided with an opening, and has the functions of draining water and radiating heat for the ultrasonic osteotome and the high-speed mobile phone.

According to the PAOO operation guide plate in the embodiment, the transverse guide groove is formed in the root of the root tip area by 2mm, the ultrasonic bone knife is precisely guided to make a transverse incision on the root tip by the cortical bone, the root square cortical bone can be loosened, the local accelerated repair phenomenon of the root square alveolar bone is accelerated, and tooth movement is promoted. In addition, the root tip region operation area is narrow, and the design of the transverse incision is more convenient, so that the cortical bone incision efficiency can be increased, and the operation speed is improved.

The PAOO operation guide plate in the embodiment is provided with a plurality of blood circulation holes corresponding to the cortical bone on the tooth root surface of the operation area, and the ultrasonic osteotome is guided to establish the blood circulation holes in the area so as to prepare for bone increment bone grafting. In addition, the blood transport hole can realize the positioning of the depth and the direction of the drilling hole in the drilling process, prevent the damage of tooth roots, nerves and important anatomical structures caused by the incision of bone cortex and the too deep drilling hole or the deviation of the direction, reduce the incidence rate of postoperative complications and further improve the safety of the operation.

The PAOO operation guide plate in the embodiment is thickened at the dental crown retention part of the operation area, and the occlusal surface corresponding to the opposite jaw teeth is designed, so that the upper and lower dentitions are occluded at the guide plate crown retention part in the operation process, and a patient does not need to open the mouth by himself in the operation process, thereby improving the comfort degree in the operation and relieving the pain of the patient.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A method for preparing a 3D printed tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide plate, which is characterized by comprising the following steps:

step 3, the ultrasonic bone knife bit and the ultrasonic bone knife bit data are imported into the 3shape software in the drawing process of the 3shape software without applying the micro CT to scan the ultrasonic bone knife bit and the drill bit;

2. The method for preparing a 3D printed tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide according to claim 1, wherein the depth of the longitudinal groove is 1-2mm and the width of the longitudinal groove is 1mm.

3. The method for preparing a 3D printed tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide according to claim 1, wherein the depth of the transverse groove is 1-2mm and the width of the transverse groove is 1mm.

4. The method for preparing a 3D printed tooth Zhou Fuchu accelerated osteogenic orthodontic treatment surgical guide according to claim 1, further comprising, after step 7, before step 8:

5. The method of preparing a 3D printed tooth Zhou Fuchu accelerated osteogenic orthodontic treatment surgical guide according to claim 1 or 4, wherein step 8 further comprises, before processing the data obtained after the 3-matic software processing into STL format:

6. The method for preparing a 3D printed tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide according to claim 1, wherein the blood holes are circular holes with a diameter of 1.5mm, and the distance between the two blood holes is at least 2mm and the depth is 2mm.

7. A 3D printing tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide prepared by the method of preparing a 3D printing tooth Zhou Fuchu accelerating osteogenic orthodontic treatment surgical guide according to any one of claims 1 to 6.