A personalized palatal shield digital design and manufacturing method

Abstract

The application provides a personalized palatal shield digital design and manufacturing method, which comprises a personalized gum transplantation surgery guide plate and a personalized palatal hemostasis shield. The personalized surgery guide plate design in step S1 comprises the following steps: applying digital technology, directly scanning the oral cavity of a patient by using a 3D scanner before surgery to obtain the digital shape of the operation area and the palatal shape in the oral cavity of the patient; combining CBCT, accurately predicting the mucosa thickness and shape to be transplanted according to the tooth curvature, gum edge and arc length of the root side and the crown root distance of different patients at different positions, and combining the periodontal phenotype of the patient; manufacturing a personalized surgery guide plate; and fixing and engaging the personalized surgery guide plate with the maxillary teeth to position the palatal mucosa. The personalized palatal hemostasis shield in step S2 is printed according to the personalized palatal shape of the patient, and the palatal shield is fixed on the teeth to achieve the effect of compression hemostasis, and the thickness of the mucosa at the cutting position is increased. The thickened material is an absorbable material, which is gradually absorbed with the healing of the palatal wound. The application carries out personalized digital design and preparation for the collection of palatal mucosa and postoperative hemostasis protection, so that the free gingival transplantation surgery is more precise, the operation time is reduced, the comfort of the patient after the operation is increased, and the application has clinical application and promotion value.

Description

Technical Field

[0001] This invention belongs to the field of oral hygiene technology, specifically relating to a method for the digital design and fabrication of a personalized palate splint. Background Technology

[0002] The masticatory mucosa is a type of oral mucosa, including the gingiva and hard palate mucosa, which bears the pressure and friction during chewing. The masticatory mucosa epithelium is keratinized, firmly attached to deeper tissues, and cannot move. The keratinized gingiva of natural teeth and the keratinized mucosa around implants both belong to the masticatory mucosa, which is demarcated from the alveolar mucosa by the gingival symphysis. In patients with poor oral hygiene, the presence of keratinized mucosa can reduce plaque buildup around teeth / implants, alleviating discomfort during brushing. Insufficient keratinized mucosa may be accompanied by gingival recession and may affect the long-term stability and function of implants. Therefore, in patients with poor oral hygiene, a keratinized mucosa width of at least 2 mm is generally recommended. For patients with insufficient keratinized gingiva / mucosa width, free gingival grafting is recommended. The maxillary hard palate, which is also part of the masticatory mucosa, is the most commonly used donor site for free gingival grafting.

[0003] With advancements in microsurgery, implant techniques, and improved living standards, vascularized bone flaps can be used to repair facial defects after maxillofacial tumor resection, followed by implant placement in the reconstructed area to further restore patient function. However, these patients often lack peri-implant keratinized mucosa, requiring extensive keratinized mucosal transplantation. This is particularly true for the palatal donor site in the maxilla, where the wound may be large, potentially involving both palates. Postoperative hemostasis and pain control present significant clinical challenges. During palatal wound healing, patients are highly likely to experience postoperative bleeding and pain when eating, often requiring repeat hospital visits for suturing and other hemostatic procedures.

[0004] Due to the need for oral mucosal keratosis treatment, there is an urgent need to solve the techniques for protecting the palatal donor area and applying pressure to stop bleeding. Summary of the Invention

[0005] Based on the problems existing in the prior art, this invention discloses a method for digital design and manufacturing of a personalized palatal splint. By preparing a personalized 3D printed palatal hemostatic splint, the patient's postoperative discomfort is reduced through protection and compression hemostasis of the palatal donor area.

[0006] To achieve the above objectives, the present invention provides a method for digital design and manufacturing of a personalized palate guard, which includes the following steps;

[0007] Step S1: Design and fabrication of a personalized gingival transplant surgical guide;

[0008] Step S2: Design and fabrication of a personalized palatal hemostatic guard.

[0009] The personalized surgical guide design in step S1 includes the following steps;

[0010] Step S11: Apply digital technology and use a 3D oral scanner to directly scan the patient's oral cavity to obtain the digital morphology of the gingival transplantation site and palate in the patient's oral cavity.

[0011] Step S12: Combining CBCT, based on the root curvature and degree of bone resorption of different patients and different surgical locations, accurately predict the arc length of the palatal mucosa gingival margin and root side and the coronal-root distance of the tooth to be transplanted, and predict the gingival thickness of the tooth to be transplanted based on the periodontal phenotype.

[0012] Step S13: Fabricate a personalized surgical guide for gingival transplantation; fix and position the personalized surgical guide to the maxillary teeth; use the personalized surgical guide to harvest the hard palate mucosa, making horizontal incisions and two vertical or arc-shaped incisions. Preferably, to facilitate the movement of the blade during harvesting, the personalized surgical guide is hollow.

[0013] Furthermore, step S2, printing the personalized palate hemostatic patch, includes the following steps:

[0014] Step S21: Based on the scanned hard palate shape, print a palatal shield, thicken the wound area after collection in the predicted palatal donor area, and design a digitally personalized palatal hemostatic shield.

[0015] Step 22: Based on the personalized surgical guide for the palatal mucosa, thicken the corresponding position on the mucosal surface of the palatal guard by about 1-1.5 mm to form a model of the palatal hemostatic guard.

[0016] Preferably, a personalized surgical guide is used to harvest the palatal mucosa. The incision is made 2-3 mm from the gingival margin on the hard palate side of the maxillary posterior teeth. The extent of the incision is determined by the design of the personalized surgical guide, taking into account the shape of the tooth roots and alveolar bone in different patients and tooth positions, ensuring that the surgical location requires the shape of the palatal mucosa to be harvested. No further trimming is needed after harvesting. The thickened area on the palatal mucosa side of the palatal shield coincides with the location where the palatal mucosa was harvested. The thickened area is absorbed over time, promoting healing of the palatal mucosal wound while achieving hemostasis, eliminating the need for additional sutures or hemostatic materials.

[0017] Specifically, palatal mucosa of appropriate length and width is collected according to the size of the recipient area (corresponding to the window area of ​​the personalized surgical guide).

[0018] Preferably, the palatal mucosa thickness is between 1 and 1.5 mm, taking into account the patient's periodontal phenotype.

[0019] Compared with existing technologies, the personalized palate guard digital design and manufacturing method of the present invention has the following advantages:

[0020] 1. This invention features personalized digital design and preparation for the collection and postoperative hemostasis protection of palatal mucosa, making free gingival transplantation surgery more precise and accurate, reducing surgical time, and increasing postoperative patient comfort. It has clinical application and promotion value.

[0021] 2. This invention combines precision medicine to accurately print the mucosal area of ​​the palatal donor site, avoiding the need for re-trimming due to the palatal mucosa being too large or too small during the operation, which may affect the surgical outcome. It also reduces errors in intraoperative measurements due to bleeding and shortens the operation time. Furthermore, the thickening and compression hemostasis method reduces the suturing time of the palatal donor site and increases the patient's postoperative eating comfort. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating the digital design and manufacturing method of a personalized palate guard according to the present invention.

[0023] Figure 2 This is a schematic flowchart of the method for collecting palatal mucosa and protecting it postoperatively according to the present invention.

[0024] Figure 3 A schematic diagram illustrating the process of printing a personalized surgical guide according to the present invention;

[0025] Figure 4 A schematic diagram of the process for printing a personalized palatal hemostatic plate according to the present invention;

[0026] Figure 5 This is a flowchart illustrating the digital design method for a personalized palate guard according to the present invention.

[0027] Figures 6a-6c These are schematic diagrams of a personalized surgical guide printed according to the present invention; in order, they are a front view, a rear view, and a side view.

[0028] Figures 7a-7c These are schematic diagrams of a hemostatic palatal guard printed according to the present invention; in order, they are a front view, a rear view, and a side view.

[0029] Figure 8 This is a schematic diagram of the shape of the soft and hard tissues in the surgical area and the palate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] In this invention, a personalized palatal flap digital design and fabrication method involves a patient undergoing a three-dimensional oral scan, which is then overlaid on a CBCT (cone-beam computed tomography, also known as "oral and maxillofacial cone-beam CT"). Based on the periodontal phenotype of the patient's healthy teeth and the morphology of the keratinized mucosa to be transplanted in the surgical area, the surgical scope for palatal mucosa transplantation is digitally and accurately predicted. First, based on the differences in periodontal phenotype among individual patients, the required palatal mucosa thickness is determined. If the patient has a thin gingival phenotype, the mucosa thickness is controlled at 0.8mm-1mm; if the patient has a thick gingival phenotype, the mucosa thickness is controlled at 1mm-1.5mm. Second, based on the digital prediction of the tooth root and alveolar bone curvature, the required gingival margin, root-direction width, and crown-root height of the palatal mucosa are collected, thereby determining the required shape (length, width, and height) and thickness of the palatal mucosa to be collected.

[0032] This invention provides a method for the digital design and fabrication of a personalized palatal splint, comprising a personalized gingival transplantation surgical guide and a personalized palatal hemostatic splint. Step S1, the personalized surgical guide design, involves applying digital technology: preoperatively, a 3D scanner is used to directly scan the patient's oral cavity to obtain the digital morphology of the surgical area and palate; combined with CBCT, based on the curvature of teeth at different locations in different patients, the arc length of the gingival margin and root, and the coronal-radical distance, and combined with the patient's periodontal phenotype, the required amount, thickness, and shape of the mucosa to be transplanted are accurately predicted; a personalized surgical guide is fabricated; and the personalized surgical guide is fixed and engaged with the maxillary teeth for harvesting palatal mucosa. Step S2, the personalized palatal hemostatic splint, is printed according to the patient's personalized palatal morphology, with tooth retention for compression hemostasis. It thickens at the mucosa harvesting site; the thickened material is absorbable and gradually absorbed as the palatal wound heals. This invention features personalized digital design and preparation for the collection and postoperative hemostasis protection of palatal mucosa, making free gingival transplantation surgery more precise and accurate, reducing surgical time, and increasing postoperative patient comfort. It has clinical application and promotion value.

[0033] like Figure 1 As shown, the personalized palate splint digital design and manufacturing method of the present invention includes two main steps: personalized palate splint digital design and digital manufacturing. The personalized palate splint digital manufacturing method includes the following steps:

[0034] Step S1: Design and fabrication of a personalized gingival transplant surgical guide;

[0035] Based on oral cavity scanning (which has the advantage of measuring the three-dimensional morphology of soft tissues) and CBCT (cone beam computed tomography), the amount of palatal mucosa to be transplanted is accurately predicted. A hollow, personalized surgical guide is then printed based on this prediction. Using tooth retention, the required amount of palatal mucosa is harvested under the guidance of the guide, ensuring consistency with the surgical recipient area and avoiding insufficient or excessive palatal mucosa during surgery, thus improving the accuracy and reliability of the procedure. This invention utilizes CBCT, which has the advantage of measuring bone morphology and, when combined with 3D oral cavity scanning, facilitates adjustments to the amount of palatal mucosa transplanted, potentially causing measurement errors due to the amount of soft tissue in the surgical area, such as muscles.

[0036] Specifically, a 3D scanner is used to directly scan the patient's oral cavity, obtaining a digital morphology of the gingival region (surgical area) requiring transplantation and the soft tissue morphology of the palate. CBCT imaging of the patient's oral cavity is used to obtain a digital morphology of the hard tissues (teeth, roots, and alveolar bone). These digital morphologies of the soft and hard tissues are combined to form a comprehensive oral cavity morphology. Then, based on the periodontal phenotype of the patient's healthy teeth and the palate morphology, the amount of palatal mucosa attached to them is predicted. Based on the predicted amount of palatal mucosa, a surgical guide is printed using 3D printing technology. Preferably, before printing the surgical guide, adjustments and predictions are made based on the periodontal phenotype of the patient's healthy teeth and the amount of palatal mucosa to be harvested. This involves setting 10-25 marker points, and adjusting the position of each marker point according to the surgical goals. Preferably, markers are set according to the outer periphery of the soft and hard tissues in the patient's oral cavity, and the digital morphology of the soft and hard tissues in the patient's oral cavity is determined by connecting the markers; more preferably, the spacing between the markers is equal, and each marker is marked with three-dimensional data, such as using three-dimensional coordinates to mark each marker.

[0037] After determining the landmark points, the required amount of palatal mucosa is harvested under the guidance of the printed personalized gingival transplantation surgical guide, using tooth retention. This ensures that the amount of palatal mucosa is consistent with the surgical recipient area, avoiding insufficient or excessive palatal mucosa during the operation and improving the accuracy and reliability of the surgery.

[0038] like Figures 6a-6c The personalized surgical guide shown is designed in a trapezoidal shape, with its four corners slightly rounded. Figure 6a A front view of a personalized surgical guide. Figure 6b This is a personalized surgical guide rear view with a window area for pre-harvesting palatal mucosa. Figure 6cThe personalized surgical guide is shown in a side view and has a window area for pre-retrieving the palatal mucosa. The personalized surgical guide includes a fitting part that engages with the periodontal tissue and teeth, and a window area for retrieving the palatal mucosa. When using the personalized surgical guide to retrieve the palatal mucosa, the personalized surgical guide is fitted onto the patient's maxillary teeth, and the palatal mucosa is retrieved from the window area.

[0039] Step S2, design and fabrication of a personalized palate hemostatic patch;

[0040] Palatal mucosa was harvested using the personalized surgical guide from step S1. A personalized palatal hemostatic shield was printed based on the predicted wound area after harvesting from the palatal donor site. If both posterior teeth were intact, the shield extended to the palatal apical-root region, using palatal undercuts for retention. A biodegradable polylactic acid-printed protrusion, matching the thickness of the harvested palatal mucosa, was used for compression hemostasis at a position corresponding to the palatal wound incision. If many posterior teeth were missing bilaterally, making palatal undercuts for retention impossible, a palatal shield covering the occlusal surface of the teeth was prepared and retained via buccal or other positions.

[0041] Preferably, before using 3D printing technology to print the patient's personalized palatal hemostatic plate, the palatal hemostatic plate is adjusted and predicted based on the determined amount of palatal mucosa to be removed. This involves setting 10 to 25 marker points, which correspond to the marker points in the personalized surgical guide fabrication process, so that the personalized palatal hemostatic plate fits snugly to protect and compress the palatal donor area for hemostasis.

[0042] The personalized surgical guide of this invention is used for harvesting palatal mucosa, and the personalized palatal hemostatic guard of this invention is used for postoperative hemostasis and protection. For example... Figure 2 As shown, the procedures for collecting and protecting the palatal mucosa postoperatively are as follows: The palatal mucosa is collected using the personalized surgical guide of this invention. An incision is made 2-3 mm from the palatal gingival margin of the maxillary posterior teeth, specifically a horizontal incision and two vertical or arc-shaped incisions. Palatal mucosa of appropriate length and width is collected according to the size of the receiving area (corresponding to the window area of ​​the personalized surgical guide); the palatal mucosa thickness is generally between 1-1.5 mm. The palatal hemostatic guard designed in this invention is used for collecting the palatal mucosa and for postoperative hemostasis protection.

[0043] like Figures 7a-7c The diagram shows a hemostatic palatal guard. The hemostatic palatal guard is related to... Figures 6a-6c The front, rear, and side views of the personalized gingival transplant surgical guide shown correspond to each other. Figures 7a-7cThe images show the front, rear, and side views of the hemostatic palatal splint, in sequence. The personalized hemostatic palatal splint includes a fitting portion that engages with the gingiva and teeth, and a thickened hemostatic palatal splint portion. After harvesting palatal mucosa using a personalized gingival transplant surgical guide, the personalized hemostatic palatal splint is fitted over the patient's maxillary teeth, and the thickened hemostatic palatal splint portion provides hemostasis and protection to the area where the mucosa was harvested.

[0044] Furthermore, such as Figure 3 As shown, in the personalized palate guard digital design and manufacturing method of the present invention, the printing of the personalized surgical guide in step S1 includes the following steps;

[0045] Step S11: Apply digital technology to perform oral cavity scanning before surgery; use a 3D scanner to directly scan the patient's oral cavity to obtain the digital morphology of the surgical area and palate in the patient's oral cavity.

[0046] Step S12: Combining CBCT, based on the curvature of teeth in different positions of different patients, accurately predict the amount of mucosa to be transplanted, its shape, the arc length of the gingival margin and the root, and the distance between the two sides; use CBCT to image the inside of the patient's oral palate to obtain the digital morphology of the inside of the oral palate, the main factors being the curvature of teeth in different positions of different patients, to accurately predict the amount of mucosa to be transplanted, its shape, the arc length of the gingival margin and the root, and the distance between the two sides.

[0047] Step S13: Fabricate a personalized gingival transplant surgical guide; the personalized surgical guide is a hollow guide, which is fixed and engaged with the maxillary teeth for collection of palatal mucosa.

[0048] In a preferred embodiment, Figure 1 The design and printing of the personalized gingival transplant surgical guide shown Figure 3 The printed personalized surgical guide shown is used in combination.

[0049] Furthermore, such as Figure 4 As shown, step S2, printing a personalized palatal hemostatic patch, includes the following steps:

[0050] Step S21: Based on the predicted wound area after palatal donor site collection, digitally personalized palatal hemostatic guards are applied.

[0051] Step 22: Based on the personalized surgical guide for the palatal mucosa, thicken the palatal hemostatic shield by approximately 1-1.5 mm at the corresponding position on the mucosal surface of the palatal shield to form a model of the palatal hemostatic shield. Adjust the model of the palatal hemostatic shield according to the markings on the personalized gingival transplant surgical guide; specifically, match the numerical markings on the model of the palatal hemostatic shield one-to-one with the markings on the personalized surgical guide, and thicken the palatal mucosa at the harvesting location by 1-1.5 mm according to the location of the harvested palatal mucosa to form a well-fitting personalized palatal hemostatic shield. The hemostatic part uses absorbable materials such as polylactic acid, which immediately compresses the palatal donor site postoperatively to stop bleeding. As the material is gradually absorbed and degraded, it does not affect the healing of the palatal wound.

[0052] A second aspect of the present invention provides a digital design method for a personalized palate splint, which corresponds to the aforementioned digital design and manufacturing method for a personalized palate splint. As shown in Figure 7, it includes the following steps:

[0053] Step W1, Oral Data Collection: Acquire preoperative cone-beam CT (CBCT) data and intraoral scan data; overlay the CBCT and intraoral scan data using graphics processing software (e.g., Simpleware, Arigin3D Pro, or 3DMAX) to obtain the morphology of the surgical area and the soft and hard tissues of the palate. Figure 8 As shown, the information obtained from the oral scan model is the area of ​​the crown and the buccal and lingual sides covered by the yellow line. The high-density images in the yellow line area are information obtained from CBCT. The high-density areas are the crown and implants, and the slightly higher-density areas are the alveolar bone. This allows us to obtain the shape of the soft and hard tissues in the surgical area.

[0054] Step W2, Oral and Periodontal Data Processing: The collected data is processed and virtual designs are performed using computer-aided design software; the design standards are based on the periodontal phenotype of adjacent teeth, the buccal curvature of the alveolar bone, the position of the ligamentum gingival symphysis, etc.

[0055] Step W3, Digital Fabrication of Personalized Palatal Brake: The required model is printed using 3D printing. This process is preferentially adopted... Figure 4 The method shown is for printing a personalized palate hemostatic patch.

[0056] Furthermore, the personalized palate guard and the personalized gingival transplant surgical guide are made of materials such as resin. The mucosal wound side of the personalized palate guard is made of absorbable materials such as polylactic acid, which compresses to stop bleeding and is gradually absorbed.

[0057] After applying this invention to the patient's palate, the following results appear: Figure 8 The diagram shows the surgical area and the shape of the soft and hard tissues of the palate. It reduces postoperative discomfort for patients by protecting the donor area of ​​the palate and compressing it to stop bleeding.

[0058] The advantages of this invention lie in its organic combination of 3D scanning and CBCT, thereby overcoming the problem of large errors caused by surgical guides made using a single method. It also predicts the area of ​​the surgical site requiring separation of soft and bone tissue during surgery, as CBCT is less accurate than bone tissue in identifying soft tissue, and 3D intraoral scanning cannot distinguish bone volume. Furthermore, because the surgical site is often irregular in shape, intraoperative bleeding cannot accurately replicate the amount of palatal gingiva to be transplanted, resulting in palatal mucosa samples that are often too large, too small, or misfitting. This personalized gingival transplant surgical guide design can accurately predict the amount of tissue in the surgical site, simplifying the time required for intraoperative measurements and facilitating precise operation by the surgeon. The use of a personalized palatal hemostatic guard eliminates the need for suturing the palatal donor site, reducing surgical time. The thickened mucosa corresponds to the position of the personalized gingival transplant guide, making it easy to insert and remove and minimizing postoperative bleeding.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A method for digital design and fabrication of a personalized palate protector, characterized in that... Precisely harvest the palatal mucosa to be transplanted, avoiding misalignment or non-adherence to the surgical area. Absorbable materials are used for thickened areas of the palatal mucosa, allowing for healing and absorption while achieving hemostasis. This process includes the following steps: ； Step S1: Design and fabrication of a personalized gingival transplant surgical guide; Step S2: Design and fabrication of a personalized palate hemostatic guard. Digital and radiological examinations are used to accurately predict the amount of gingiva to be transplanted in the surgical area, thereby harvesting an appropriate amount of palatal mucosa. The design of the personalized gingival transplantation surgical guide in step S1 includes the following steps: Step S11: Apply digital technology. Before the operation, use a 3D oral scanner to directly scan the patient's oral cavity to obtain the digital morphology of the gingival transplantation site and palate in the patient's oral cavity. Step S12: Combining CBCT, based on the root curvature and degree of bone resorption of different patients and different surgical locations, accurately predict the arc length and coronal-radial distance of the palatal mucosa gingival margin and root side to be transplanted, and predict the gingival thickness to be transplanted based on periodontal phenotype. Step S13: Based on the required palatal mucosa morphology, a personalized gingival transplantation surgical guide is fabricated, and the guide is fixed and positioned in conjunction with the maxillary teeth. The personalized surgical guide is then used to collect the hard palate mucosa. If the patient has a thin gingival phenotype, the palatal mucosal thickness should be controlled at 0.8mm-1mm; if the patient has a thick gingival phenotype, the palatal mucosal thickness should be controlled at 1mm-1.5mm. Adjustments and predictions are made based on the periodontal phenotype of the patient's healthy teeth and the morphology of the palatal mucosa. This involves setting 10 to 25 landmark points, adjusting the position of each landmark point according to the surgical goal, and setting landmark points based on the peripheral lines of the soft and hard tissues in the patient's oral cavity. The digital morphology of the gingival transplantation site and palate in the patient's oral cavity is determined by connecting the landmark points. The spacing between the landmark points is equal, and each landmark point is marked using three-dimensional data. In step S2, the palatal hemostatic plate is adjusted and predicted according to the determined amount of palatal mucosa to be removed, wherein 10 to 25 marker points are set, and these marker points correspond to the marker points in step S1. The personalized palatal hemostatic guard is thickened at the mucosal incision site, and the thickened material is absorbable.

2. The method for digital design and fabrication of a personalized palate protector according to claim 1, characterized in that... Based on the patient's hard palate morphology, a personalized palatal hemostatic guard was printed and fixed to the occlusal surface of the teeth and the palatal side. The guard was thickened on the mucosal side at the location where the mucosa was taken from the S1 surgical guide. The thickened area completely adhered to the collected palatal mucosa and was made of absorbable material. The thickened material is gradually absorbed as the wound heals while stopping the bleeding. The design and fabrication of the personalized palatal hemostatic patch in step S2 includes the following steps: Step S21: Based on the range of the palatal donor site wound obtained from the gingival transplantation surgical guide in S13, design the thickening position of the digitally personalized palatal hemostasis plate, and prepare a palatal plate fixed on the occlusal surface and palatal side of the teeth according to the patient's palatal shape. Step 22: Thicken the palatal mucosa by about 1-1.5 mm at the corresponding position on the mucosal surface of the palatal shield to form a model of the palatal hemostatic shield.

3. The method for digital design and fabrication of a personalized palate protector according to claim 1, characterized in that, The thickened area of ​​the palatal mucosa on the palatal shield coincides with the location where the palatal mucosa was harvested. The thickened area is absorbed over time, which not only stops bleeding but also promotes the healing of the palatal mucosal wound, eliminating the need for additional suture materials for hemostasis.

4. The method for digital design and fabrication of a personalized palate protector according to claim 3, characterized in that, Palatal mucosa of appropriate length and width is collected according to the size of the recipient area, and the recipient area corresponds to the window area of ​​the personalized gingival transplantation surgical guide.

5. The method for digital design and fabrication of a personalized palate protector according to claim 4, characterized in that, The personalized surgical guards and surgical guides are made of resin, while the thickened palatal mucosa is treated with absorbable polylactic acid and other materials, which are gradually absorbed as the palatal wound heals while stopping bleeding.

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