CN112057191A - Maxillary sinus lifting side wall windowing indication guide plate and manufacturing method thereof - Google Patents
Maxillary sinus lifting side wall windowing indication guide plate and manufacturing method thereof Download PDFInfo
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- CN112057191A CN112057191A CN202011090241.1A CN202011090241A CN112057191A CN 112057191 A CN112057191 A CN 112057191A CN 202011090241 A CN202011090241 A CN 202011090241A CN 112057191 A CN112057191 A CN 112057191A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
- A61C8/0092—Implanting tools or instruments for sinus lifting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Abstract
The invention discloses a maxillary sinus lifting side wall windowing indication guide plate and a manufacturing method thereof, and solves the technical problems that in the prior art, the maxillary sinus lifting side wall windowing risk is high and the efficiency is low due to the fact that the maxillary sinus lifting side wall windowing position and size are not accurate enough. The invention comprises a substrate and a guide structure detachably connected on the substrate, wherein the substrate is provided with a connecting bolt body, and the guide structure is detachably connected on the connecting bolt body. The manufacturing method mainly comprises the steps of obtaining stl data through mouth scanning before an operation, shooting CBCT to obtain Dicom data, marking a maxillary sinus lifting side wall windowing boundary in guide plate design software, designing a side wall windowing guide plate and a tooth support base plate according to the windowing boundary in guide plate generation software, and printing and forming through a 3D printer. The invention can accurately determine the position and the size of the maxillary sinus for lifting the side wall window, saves the bone mass of the side wall for the postoperative restoration, avoids complications such as maxillary sinus mucosa perforation and adjacent blood vessel injury, reduces the operation risk and improves the operation efficiency.
Description
Technical Field
The invention belongs to the technical field of medical instrument structures, and particularly relates to a maxillary sinus lifting side wall windowing indication guide plate and a manufacturing method thereof.
Background
The bone quantity of the maxillary posterior dental area is not enough, which is a condition that people often encounter in the implantation operation, the maxillary sinus lifting is widely used as a common maxillary posterior dental bone increment technology, and the technology is divided into maxillary sinus lifting through the alveolar ridge crest and maxillary sinus lifting through the side wall according to different residual bone quantities of the maxillary dental area. There are many ways to lift the side wall window through the maxillary sinus of lateral wall, for example, utilize supersound osteotome or ball drill to grind off the lateral wall bone and carry out the window, the bone of lateral wall can't be preserved to this kind of mode, simultaneously in actual operation, the position, the scope of grinding, and dodging of the important blood vessel of adjacent region all carry out approximate judgement according to CBCT before the window is opened, and is not very accurate, maxillary sinus mucosa perforation appears very probably in the process of opening the window, harm complication such as adjacent blood vessel, the window scope is too big or undersize simultaneously, the operation and promotion effect can be influenced to the position is too high or the low.
Therefore, it is an urgent need to solve the technical problem of the technical field to design an maxillary sinus lifting side wall windowing indication guide plate and a manufacturing method thereof, which can accurately determine the position and the size of the maxillary sinus lifting side wall windowing, avoid complications such as maxillary sinus mucosa perforation and adjacent blood vessel damage, and the like, to reduce the operation risk and improve the operation efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a maxillary sinus promotes lateral wall and instructs baffle of windowing and preparation method thereof, solves the maxillary sinus and promotes the lateral wall and window the technical problem that the position and the size of windowing are not accurate enough and consequently lead to the maxillary sinus to promote the lateral wall and window the risk height, inefficiency in prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a maxillary sinus promotes lateral wall and opens window and instructs baffle, includes the base plate that is used for covering the dental arch, can dismantle to connect and be used for accurate instruction maxillary sinus to promote the guide structure that the lateral wall opened window on the base plate, is equipped with the connection bolt body on the base plate, and guide structure can dismantle to connect on the connection bolt body.
Further, guide structure is including being used for accurate instruction maxillary sinus to promote the guide of lateral wall fenestration to and locate on the guide with the connection structure of connecting bolt body looks adaptation.
Further, the connecting structure includes a key way adapted to the connecting key body for latching to the connecting key body, and a connecting body for connecting the guide and the key way.
Furthermore, the guide piece is U-shaped, so that the range of the root flap is reduced; preferably, the guide inner contour lines indicate boundaries of the maxillary sinus lift sidewall fenestration, respectively.
Further, the base plate covers at least 6-8 teeth across the dental arch; preferably, the substrate thickness is 2 mm.
Furthermore, 2-3 positioning indication windows for observing whether the tooth is tightly attached to the tissue surface of the base plate are arranged on the base plate; preferably, the extension range of the base plate crosses the midline and is in a half arc shape.
A manufacturing method of a maxillary sinus lifting side wall windowing indication guide plate comprises the following steps:
step 1, carrying out direct oral scanning or scanning a patient research model by using an intraoral three-dimensional scanner to obtain STL data of the dentition and the gum three-dimensional surface of a patient; and (4) shooting the large-visual-field CBCT of the patient to obtain DICOM format data.
And 2, importing the oral scan data and the DICOM data into design software Mimics Medical, fitting and jaw three-dimensional reconstruction by taking dentition as a common part, marking the three-dimensional boundary of a three-dimensional structure of a maxillary sinus and a maxillary sinus mucosa in a planting area, and marking the three-dimensional boundary of a tooth root and an important blood vessel of a near-far adjacent tooth.
And 3, determining the boundary of the maxillary sinus lateral wall windowing in design software Mimics Medical, including the near-far middle and upper-lower boundaries. The fenestration boundary was confirmed to avoid the thick bone wall without injuring the maxillary sinus floor and peripheral nerve vessels.
And 4, planning the entering direction of the ultrasonic osteotome/ball drill during windowing by using a special tool in the design software Mimics Medical to ensure that the ultrasonic osteotome/ball drill is perpendicular to the sinus wall bone surface for cutting.
And 5, exporting a file containing the side wall windowing boundary information in the design software Mimics Medical into an stl format file, importing the file into guide plate design generation software Materialise-Magics, and designing a maxillary sinus lifting side wall windowing indication guide plate.
And 6, designing a dental arch spanning substrate, a windowing position and a bolt body in the material quality-Magics software for designing and generating the guide plate.
And 7, finishing the processing of the substrate model and the guide structure model by using a 3D printer.
Further, in the step 3, when the maxillary sinus lifting sidewall windowing boundary is designed in the Mimics Medical software, the windowing boundary has a safe distance of at least 1.5mm with the tooth root of the adjacent tooth and the important blood vessel; preferably, in the step 3, when the windowing boundary of the maxillary sinus lifting side wall is designed, the windowing boundary is 3-4mm away from the maxillary sinus floor; preferably, in the step 4, when the maxillary sinus lift sidewall windowing boundary is designed, the windowing boundary is selected to be a place where the maxillary sinus sidewall is thinner.
Further, in the step 4, a special tool in the mics Medical software is used for planning the entry direction of the ultrasonic osteotome/ball drill during windowing so as to ensure that the cutting is vertical to the sinus wall bone surface.
Further, in the step 5, in the design generation software Materialise-Magics of the guide plate, a U-shaped contour of the maxillary sinus lifting side wall windowing guide plate is formed according to the windowing boundary, and a lower boundary and a near-far middle boundary of the windowing guide plate are indicated, wherein the upper boundary is a connecting line of the inner sides of the upper ends of the near-far middle boundaries. The U-shaped structure inner contour is the boundary of windowing, and inside boundary line outwards extends 2mm and is the outer contour line of U-shaped window, guarantees the intensity of window, for the direction that instructs the instrument entering, can instruct through the thickness of U-shaped window, and the instrument is followed the wall entering of window and can be realized accurate entering direction. Then a bolt way and a connecting structure which are arranged on the window guide plate module and matched with the bolt body on the substrate are designed.
Further, in the step 6, in the design generation software Materialise-Magics of the guide plate, the substrate model is properly trimmed, including but not limited to setting at least 2-3 positioning indication windows on the substrate model; preferably, in the step 6, a protruding connection key is designed at a position close to the target tooth site on the buccal side of the base plate model.
Compared with the prior art, the invention has the following beneficial effects:
the invention has simple structure, scientific and reasonable design and convenient use, can accurately determine the position and the size of the window opening of the side wall of the maxillary sinus, saves the bone mass of the side wall of the maxillary sinus, and avoids complications such as perforation of mucosa of the maxillary sinus and damage to adjacent blood vessels in the window opening process, thereby realizing the purposes of reducing the operation risk and improving the operation efficiency.
The invention designs the maxillary sinus external lifting windowing indicating guide plate for the first time, which can accurately determine the windowing position, size and drilling angle, effectively improve the operation efficiency and safety, reduce the wound of a patient during the operation and reduce the operation risk.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic structural view of a guide structure of the present invention.
FIG. 3 is a schematic view of a substrate structure according to the present invention.
FIG. 4 is a schematic view of another substrate according to the present invention.
Wherein, the names corresponding to the reference numbers are:
1-connecting bolt body, 2-positioning indication window, 3-bolt channel, 4-guide piece, 5-connecting body, 6-base plate, 7-guide structure and 8-U-shaped notch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and thus, it should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; of course, mechanical connection and electrical connection are also possible; alternatively, they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 4, the maxillary sinus lifting side wall windowing indicating guide plate provided by the invention has the advantages of simple structure, scientific and reasonable design and convenience in use, and can accurately determine the position and the size of the maxillary sinus lifting side wall windowing, avoid complications such as maxillary sinus mucosa perforation and adjacent blood vessel injury, and the like, thereby achieving the purposes of reducing the operation risk and improving the operation efficiency. The maxillary sinus lifting side wall windowing guide structure comprises a base plate 6 used for covering a dental arch and a guide structure 7 detachably connected to the base plate 6 and used for accurately indicating the maxillary sinus lifting side wall windowing, wherein a connecting bolt body 1 is arranged on the base plate 6, and the guide structure 7 is detachably connected to the connecting bolt body 1. The guide structure 7 comprises a guide piece 4 used for accurately indicating the maxillary sinus to lift the side wall fenestration and a connecting structure arranged on the guide piece 4 and matched with the connecting bolt body 1. The connection structure comprises a key way 3 adapted to the connection key 1 for latching onto the connection key 1, and a connection body 5 for connecting the guide 4 and the key way 3. The guide piece 4 is U-shaped, and the U-shaped notch of the guide piece 4 with the U-shaped structure is the windowing position of the side wall of the maxillary sinus; preferably, three sides of the guide 4 indicate the lower boundary of the maxillary sinus lifting sidewall fenestration, respectively.
The base plate 6 of the invention covers at least 6-8 teeth across the dental arch; preferably, the substrate 6 is 2mm thick. 2-3 in-place indication windows 2 for observing whether the tooth is tightly jointed with the tissue surface of the base plate are arranged on the base plate 6; preferably, the base plate 6 extends over a median line and is semi-arc shaped.
The maxillary sinus external lifting windowing guide plate is creatively designed, the windowing position and size can be accurately determined, the operation efficiency and safety can be effectively improved, the wound of a patient during operation is reduced, the operation risk is reduced, the preoperative indication guide plate can be tried on and freely taken and put in the operation, and the maxillary sinus external lifting windowing guide plate has high clinical application value.
The invention provides a manufacturing method of a maxillary sinus lifting side wall windowing indication guide plate, which comprises the following steps:
step 1, carrying out direct oral scanning or scanning a patient research model by using an intraoral three-dimensional scanner to obtain STL data of the dentition and the gum three-dimensional surface of a patient; and (4) shooting the large-visual-field CBCT of the patient to obtain DICOM format data.
and 3, determining the boundary of the maxillary sinus lateral wall windowing in design software Mimics Medical, including the near-far middle and upper-lower boundaries. The fenestration boundary was confirmed to avoid the thick bone wall without injuring the maxillary sinus floor and peripheral nerve vessels.
And 4, planning the entering direction of the ultrasonic osteotome/ball drill during windowing by using a special tool in the design software Mimics Medical to ensure that the ultrasonic osteotome/ball drill is perpendicular to the sinus wall bone surface for cutting.
And 5, exporting a file containing the side wall windowing boundary information in the design software Mimics Medical into an stl format file, importing the file into guide plate design generation software Materialise-Magics, and designing a maxillary sinus lifting side wall windowing indication guide plate.
And 6, designing a dental arch spanning substrate, a windowing position and a bolt body in the material quality-Magics software for designing and generating the guide plate.
And 7, finishing the processing of the substrate model and the guide structure model by using a 3D printer.
In the step 3, when the maxillary sinus lifting sidewall windowing boundary is designed in the Mimics Medical software, the windowing boundary has a safe distance of at least 1.5mm with the tooth root of the adjacent tooth and the important blood vessel; preferably, in the step 3, when the windowing boundary of the maxillary sinus lifting side wall is designed, the windowing boundary is 3-4mm away from the maxillary sinus floor; preferably, in the step 4, when the maxillary sinus lift sidewall windowing boundary is designed, the windowing boundary is selected to be a place where the maxillary sinus sidewall is thinner.
In the step 4, a special tool in the mics Medical software is used for planning the entering direction of the ultrasonic osteotome/ball drill during windowing so as to ensure that the cutting is vertical to the sinus wall bone surface.
In the step 5, in the design generation software Materialise-Magics of the guide plate, a U-shaped outline of the maxillary sinus lifting side wall windowing guide plate is formed according to the windowing boundary, and a lower boundary and a near-far middle boundary of the windowing guide plate are indicated, wherein the upper boundary is a connecting line of the inner sides of the upper ends of the near-far middle boundary. The U-shaped structure inner contour is the boundary of windowing, and inside boundary line outwards extends 2mm and is the outer contour line of U-shaped window, guarantees the intensity of window, for the direction that instructs the instrument entering, can instruct through the thickness of U-shaped window, and the instrument is followed the wall entering of window and can be realized accurate entering direction. Then a bolt way and a connecting structure which are arranged on the window guide plate module and matched with the bolt body on the substrate are designed.
Further, in the step 6, in the design generation software Materialise-Magics of the guide plate, the substrate model is properly trimmed, including but not limited to setting at least 2-3 positioning indication windows on the substrate model; preferably, in the step 6, a protruding connection key is designed at a position close to the target tooth site on the buccal side of the base plate model.
The maxillary sinus lifting side wall windowing indication guide plate is mainly applied to cases needing to be windowed, the size and the position of windowing can be more accurately positioned by designing the windowing indication guide plate through preoperative analysis, the U-shaped notch 8 of the U-shaped structure guide part 4 is the maxillary sinus side wall windowing position, an important anatomical structure is avoided, the operation efficiency can be greatly improved, the upper part of the U-shaped groove is set to be windowed, the flap turning range is mainly reduced, the operation wound and risk are reduced, and the clinical practical value is very high.
The invention relates to a composite guide plate capable of indicating maxillary sinus side wall windowing, which comprises a base plate and a guide structure of a guide structure. The thickness of the base plate is uniform and 2mm, the base plate covers dentition, at least 6-8 teeth are covered across dental arches, at least 2-3 positioning indicating windows are respectively designed in the middle and far middle of two sides, and the positioning indicating windows are used for observing whether the teeth are tightly attached to the tissue surface of the base plate. The base plate is provided with a convex connecting bolt body close to the operation area.
The guiding structure main body is a guiding part close to the U-shaped window, and the guiding part is closely contacted with the bone. The guide piece is in bolt connection with the connection bolt body of the base plate through the connection body and the bolt channel with the expanded tail end, and the bolt direction is cheek tongue direction.
The invention discloses a manufacturing method of a composite guide plate with accurate positioning and guiding capacity, which comprises the following steps:
(1) directly carrying out oral scanning by using an intraoral three-dimensional scanner or scanning a patient research model to obtain STL data of the dentition and the gum of the patient; and (4) shooting the large-visual-field CBCT of the patient to obtain DICOM format data.
(2) Importing the oral scan data and the DICOM data into design software Mimics Medical, fitting and jaw three-dimensional reconstruction are carried out by taking dentition as a common part, the three-dimensional boundary of a three-dimensional structure of a maxillary sinus and a maxillary sinus mucosa of a jaw in a planting area is marked, and the three-dimensional boundary of a tooth root and an important blood vessel of a near-far adjacent tooth is marked;
(3) the boundaries of the maxillary sinus lateral wall fenestration, including the mesial-distal and upper and lower boundaries, were determined in the design software, mics Medical. The fenestration boundary was confirmed to avoid the thick bone wall without injuring the maxillary sinus floor and peripheral nerve vessels.
(4) The ultrasonic osteotome/ball drill entry direction during fenestration is planned using a special tool in the design software, mics Medical, to ensure vertical and sinus wall facet cutting.
(5) Exporting a file containing side wall windowing boundary information in the design software Mimics Medical into an stl format file, importing the file into guide plate design generation software Materialise-Magics, and designing a maxillary sinus lifting side wall windowing indication guide plate.
The design of the side wall windowing guide plate accessories is as follows: the guide piece of the bolt type maxillary sinus side wall windowing indication guide plate is designed into a structure close to a U shape, three sides of the guide piece indicate the lower boundary and the near-far middle boundary of the side wall windowing, the upper boundary is open, and the guide piece aims to reduce the flap turning range and reduce the wound and is level with the tail ends of two sides of the guide plate. The connector is designed on the crown of the guide piece, and the expanded part at the tail end of the connector forms a key way which is matched with the key body of the substrate.
(6) In the guide plate design generation software Materialise-Magics, a dental arch spanning substrate, a windowing position and a bolt body are designed.
Dental-supported base plate design: based on the model after coincidence of the oral scanning (model scanning) data and the CBCT data, a small, light and convenient substrate model with the thickness of 2mm and suitable for operation is generated, and the substrate model is properly trimmed, wherein at least 2-3 positioning indication windows are designed in the near-far middle and the double-side far middle of the substrate model. And a protruding connecting bolt body is designed at the position close to the target tooth position on the cheek side of the guide plate and matched with the bolt way direction of the guide piece.
The manufacturing method mainly comprises the steps of obtaining STL data through mouth scanning before an operation, shooting CBCT to obtain DICOM data, fitting the two data in guide plate design software (such as Mimics Medical) to accurately position the window boundary of the maxillary sinus lifting side wall, introducing guide plate design generation software (such as Materialise-Magics) to design a substrate model and a guide structure model in sequence, and finally printing and forming through a 3D printer.
The design and application of the maxillary sinus lifting side wall windowing indication guide plate greatly improve the efficiency and safety of the operation, reduce the wound of the patient in the operation, realize the try-on of the guide plate before the operation, freely take the guide plate out of the way during the operation and have high clinical application value. Is suitable for being widely popularized and applied in the technical field and the similar technical field.
Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, but not to limit the technical solutions, and certainly not to limit the patent scope of the present invention; while the invention 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; 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; that is, the technical problems to be solved by the present invention, which are not substantially changed or supplemented by the spirit and the concept of the main body of the present invention, are still consistent with the present invention and shall be included in the scope of the present invention; in addition, the technical scheme of the invention is directly or indirectly applied to other related technical fields, and the technical scheme is included in the patent protection scope of the invention.
Claims (10)
1. The utility model provides a maxillary sinus promotes lateral wall and opens window and instructs baffle, its characterized in that, including base plate (6) that is used for covering the dental arch, can dismantle guide structure (7) that are used for accurate instruction maxillary sinus to promote the lateral wall and open window of connecting on base plate (6), is equipped with connection bolt body (1) on base plate (6), and guide structure (7) can be dismantled and connect on connection bolt body (1).
2. A maxillary sinus lifting side wall fenestration indicating guide according to claim 1, wherein the guide structure (7) comprises a guide member (4) for accurately indicating the maxillary sinus lifting side wall fenestration, and a connection structure provided on the guide member (4) to be fitted with the connection bolt body (1).
3. A maxillary sinus lifting side wall fenestration indicating guide according to claim 2, wherein the connection structure comprises an embolus channel (3) adapted to the connection bolt body (1) for plugging to the connection bolt body (1), and a connecting body (5) for connecting the guide member (4) and the embolus channel (3).
4. A maxillary sinus lifting side wall fenestration indicator guide according to claim 2 wherein the guide member (4) is U-shaped; preferably, the guide members (4) indicate upper and lower limits and a proximal and distal limits of the maxillary sinus lift sidewall fenestration, respectively.
5. A maxillary sinus lift sidewall fenestration indicator guide according to claim 1 wherein the base plate (6) covers at least 6-8 teeth across the dental arch; preferably, the substrate (6) has a thickness of 2 mm.
6. A maxillary sinus lifting side wall fenestration indicating guide plate according to claim 1, wherein the base plate (6) is provided with 2-3 in-place indicating windows (2) for observing whether the teeth are closely attached to the tissue surface of the base plate; preferably, the base plate (6) extends across the midline and is semi-arc shaped.
7. The method for manufacturing the maxillary sinus lifting side wall windowing and indicating guide plate according to any one of claims 1 to 6, wherein the method comprises the following steps:
step 1, carrying out direct oral scanning or scanning a patient research model by using an intraoral three-dimensional scanner to obtain STL data of the dentition and the gum three-dimensional surface of a patient; shooting a large-visual-field CBCT of a patient to obtain DICOM format data;
step 2, importing the oral scan data and the DICOM data into design software, fitting and jaw three-dimensional reconstruction are carried out by taking dentition as a common part, the three-dimensional boundary of a three-dimensional structure of a maxillary sinus and a maxillary sinus mucosa of a jaw in a planting area is marked, and the three-dimensional boundary of a tooth root and an important blood vessel of a near-far adjacent tooth is marked;
step 3, determining the boundary of the maxillary sinus side wall windowing in the design software, including the near-far middle boundary and the upper and lower boundaries, and determining that the windowing boundary avoids the thicker bone wall and does not hurt the maxillary sinus floor and peripheral nerve vessels;
step 4, planning the entering direction of the ultrasonic osteotome/ball drill during windowing by using a tool in the software, and ensuring that the ultrasonic osteotome/ball drill is vertical to the sinus wall bone surface for cutting;
5, exporting a file containing the side wall windowing boundary information in the design software into an stl format file, importing guide plate design generation software, and designing a maxillary sinus lifting side wall windowing indication guide plate;
step 6, designing a dental arch spanning substrate, a windowing position and a bolt body in guide plate design generation software;
and 7, finishing the processing of the substrate model and the guide structure model by using a 3D printer.
8. The method of claim 7, wherein in the step 3, when the maxillary sinus lifting sidewall fenestration boundary is designed, the fenestration boundary has a safe distance of at least 1.5mm with the root of the adjacent tooth and the important blood vessel; preferably, in the step 3, when the windowing boundary of the maxillary sinus lifting side wall is designed, the windowing boundary is 3-4mm away from the maxillary sinus floor; preferably, in the step 4, when the maxillary sinus lift sidewall windowing boundary is designed, the windowing boundary is selected to be a place where the maxillary sinus sidewall is thinner.
9. The manufacturing method according to claim 7, wherein in the step 5, in the design generation software of the guide plate, a U-shaped outline of the maxillary sinus lift sidewall windowing guide plate is formed according to a windowing boundary, and a lower boundary, a near-far middle boundary and an upper boundary of the windowing guide plate are indicated, wherein the upper boundary is a connecting line of the inner sides of the upper ends of the near-far middle boundary; the inner contour of the U-shaped structure is a windowing boundary, the inner boundary line extends outwards for 2mm and is the outer contour line of the U-shaped window, the strength of the window is ensured, the entering direction of a tool is indicated, the thickness of the U-shaped window can be used for indicating, and the correct entering direction can be realized when an instrument enters along the wall of the window; then a bolt way and a connecting structure which are arranged on the window guide plate module and matched with the bolt body on the substrate are designed.
10. The manufacturing method according to claim 7, wherein in the step 6, in the design generation software of the guide plate, the substrate model is properly trimmed, including but not limited to at least 2-3 positioning indication windows; preferably, in the step 6, a protruding connection key is designed at a position close to the target tooth site on the buccal side of the base plate model.
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| CN202011090241.1A CN112057191A (en) | 2020-10-13 | 2020-10-13 | Maxillary sinus lifting side wall windowing indication guide plate and manufacturing method thereof |
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| CN202011090241.1A CN112057191A (en) | 2020-10-13 | 2020-10-13 | Maxillary sinus lifting side wall windowing indication guide plate and manufacturing method thereof |
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| CN112057191A true CN112057191A (en) | 2020-12-11 |
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| CN202011090241.1A Pending CN112057191A (en) | 2020-10-13 | 2020-10-13 | Maxillary sinus lifting side wall windowing indication guide plate and manufacturing method thereof |
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