Combined digital guide plate system for free gum transplantation

Abstract

The invention discloses a combined digital guide plate system for free gingival transplantation, and belongs to the technical field of oral medicine. The invention discloses a combined digital guide plate system for free gingival transplantation. The combined digital guide plate system comprises a base guide plate, a receiving area half-thickness incision indication guide plate, a receiving area full-thickness incision indication guide plate, a temporary restoration-soft tissue fixing splint and a donor area indication guide plate, the base guide plate is used for positioning and fixing each guide plate in a receiving area and a temporary restoration-soft tissue fixing splint. According to the invention, a receiving area semi-thick incision indicating guide plate, a receiving area full thick valve incision indicating guide plate, a temporary restoration-soft tissue fixing splint and a donor area indicating guide plate are covered, and a combined structure design of a substrate guide plate and a split accessory guide plate is combined, so that the function integration of the whole treatment process of free gingival transplantation is realized. According to the invention, accurate positioning can be realized, damage to an anatomical structure can be avoided, semi-thick valves and full-thick valves can be accurately prepared, meanwhile, the agomphosis period of a patient can be shortened, vestibular sulcus springback can be prevented, and the curative effect of free gingival transplantation can be ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of stomatology, and particularly relates to a combined digital guide plate system for free gingival grafting. Background Art

[0002] As one of the main treatment methods for edentulous patients, the success of implant restoration technology not only depends on the osseointegration between the implant and the alveolar bone, but also requires the stability of the soft tissue around the implant. The sufficient thickness and width of keratinized mucosa are crucial for controlling plaque, reducing the incidence of peri-implantitis, and ensuring the long-term stability of implants. However, studies have shown that 46%-74% of implants lack sufficient keratinized mucosa around them, which needs to be solved by soft tissue augmentation surgery.

[0003] Currently, the free gingival grafting (FGG) is considered the gold standard for increasing the width of keratinized mucosa. It achieves soft tissue augmentation by preparing a semi-thick flap with epithelium from the palatal side of the maxilla, especially suitable for non-aesthetic areas. Nevertheless, the FGG technology still faces multiple problems in practical applications:

[0004] (1) Difficulty in precisely controlling the range of donor tissue: Clinicians need to repeatedly trim the soft tissue during the operation to match the recipient area, which not only increases the operation time but also may cause postoperative discomfort to the patient.

[0005] (2) Risks during the acquisition of donor tissue: It is easy to damage anatomical structures such as the greater palatine artery and the greater palatine nerve, which may cause complications such as intraoperative and postoperative bleeding and numbness.

[0006] (3) Precision problem of fixing the graft in the recipient area: It is difficult to accurately control the fixing position of the graft, which may lead to a discrepancy between the soft tissue augmentation range and the expectation.

[0007] (4) Stability problem after soft tissue transplantation: Factors such as the pulling of the patient's facial muscles and chewing movements may cause the graft to shift and the vestibular sulcus to rebound, affecting the vascularization of the graft, increasing the contracture rate, and thus affecting the soft tissue augmentation effect.

[0008] (5) Prolongation of the patient's edentulous time: After soft tissue transplantation surgery, patients usually need at least one month to take impressions for fabricating the upper prosthesis, which increases the patient's edentulous time.

[0009] In addition, although digital guides for the donor site have been used in FGG, these guide designs are usually trapezoidal or rectangular and do not consider the shape of the healing abutment. As a result, it is difficult to fully conform when fixing the graft, easily forming cavities and affecting vascularization. At the same time, these guides have a single function and do not comprehensively consider the requirements such as the preparation range of the recipient site, postoperative graft displacement, vestibular sulcus rebound, and temporary restoration after surgery, restricting their effectiveness in clinical applications. Therefore, existing technologies still require further improvement and innovation in achieving the goal of soft tissue augmentation in implant restoration. Summary of the Invention

[0010] The purpose of the present invention is to provide a combined digital guide system for free gingival grafting, which solves the technical problems such as inconsistent soft tissue donor and recipient site ranges increasing the operation time, inaccurate positioning of soft tissue harvesting resulting in damage to adjacent important anatomical structures, postoperative graft displacement reducing the surgical effect, and soft tissue surgery increasing the toothless time when using free gingival grafting for soft tissue augmentation.

[0011] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0012] The present invention discloses a combined digital guide system for free gingival grafting, including a base guide, a recipient site partial-thickness incision indicator guide, a recipient site full-thickness incision indicator guide, a temporary prosthesis-soft tissue fixation splint, and a donor site indicator guide; the base guide is used to position and fix each guide at the recipient site (recipient site partial-thickness incision indicator guide, recipient site full-thickness incision indicator guide) and the temporary prosthesis-soft tissue fixation splint.

[0013] In some embodiments of the present invention, the base guide is clamped and fixed on the patient's dental arch, including a base guide observation window and a pin anode; each guide at the recipient site (recipient site partial-thickness incision indicator guide, recipient site full-thickness incision indicator guide) and the temporary prosthesis-soft tissue fixation splint are all provided with pin holes matching the pin anode, and the base guide is connected to each guide at the recipient site and the temporary prosthesis-soft tissue fixation splint through pins;

[0014] Preferably, the number of base guide observation windows is greater than or equal to 2.

[0015] In some embodiments of the present invention, the recipient site partial-thickness incision indicator guide is used to indicate and position the partial-thickness incision range, including a partial-thickness incision indicator window and an accessory of the recipient site partial-thickness incision indicator guide. The accessory of the recipient site partial-thickness incision indicator guide is provided with a pin hole. The contour of the partial-thickness incision indicator window matches the free gingival morphology in the mesiodistal direction and the root direction, while the coronal contour is only designed as a horizontal incision at the alveolar ridge crest, facilitating the rapid preparation of the partial-thickness flap; preferably, in the partial-thickness incision indicator window, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position range mesially and distally respectively, and the root side is located at the bottom of the vestibular sulcus.

[0016] In some embodiments of the present invention, the recipient full-thickness incision guiding plate is used to indicate the range of the full-thickness incision above the implant. A guiding window and an attachment for the recipient full-thickness incision guiding plate are provided on the recipient full-thickness incision guiding plate; pin holes are provided on the attachment for the recipient full-thickness incision guiding plate; the contour of the guiding window matches the shape of the free gingiva and is consistent with the morphological contour of the healing abutment at the corresponding position of the healing abutment. The area corresponding to the healing abutment in the guiding window is the working area of the full-thickness incision, and the full-thickness incision is only generated in the working area.

[0017] In some embodiments of the present invention, the temporary restoration-soft tissue fixation splint includes a prefabricated implant-supported temporary restoration, a wing plate, and an attachment for the fixation splint. Pin holes are provided on the attachment for the fixation splint. The wing plate extends from the temporary crown towards the root and is consistent with the shape of the free gingiva; the prefabricated implant-supported temporary restoration is provided with an occlusal surface screw opening; preferably, the extension ranges of the wing plate in the mesial, distal, and root directions are 1 mm greater than the range of the free gingiva to protect and stabilize the underlying free gingiva.

[0018] In some embodiments of the present invention, in the temporary restoration-soft tissue fixation splint, the attachment for the fixation splint and the implant-supported temporary restoration are connected by a connecting rod, and a break point is provided on the connecting rod.

[0019] In some embodiments of the present invention, the donor guiding plate is used for positioning the spatial position of the free gingiva donor area and is seated on the patient's donor dental arch by clamping force; a donor observation window and a donor incision guiding window are provided on the donor guiding plate;

[0020] Preferably, the number of donor observation windows is greater than or equal to 2.

[0021] In some embodiments of the present invention, the contour of the donor incision guiding window is consistent with the shape after the healing abutment is placed in the recipient area;

[0022] Preferably, the donor incision guiding window avoids the greater palatine artery, and its edge is at least 2 mm away from the greater palatine artery;

[0023] Preferably, the inner wall of the donor incision guiding window is perpendicular to the mucosa.

[0024] In some embodiments of the present invention, the inner wall of the partial-thickness incision guiding window is perpendicular to the mucosa in the alveolar ridge crest area;

[0025] The inner wall of the guiding window is perpendicular to the mucosa in the alveolar ridge crest area, mesial area, distal area, and root area.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention is scientifically designed and ingeniously conceived, providing a combined digital guide plate system for free gingival grafting, which includes a recipient partial-thickness incision guide plate, a recipient full-thickness incision guide plate, a temporary restoration-soft tissue fixation splint, and a donor site guide plate. With the composite structure design of "base guide plate + split accessory guide plate", the functional integration of the overall treatment process of free gingival grafting is achieved.

[0028] The combined digital guide plate system of the present invention can not only accurately locate the donor site range and avoid damaging anatomical structures, but also accurately prepare partial-thickness flaps and full-thickness flaps. In addition, the temporary restoration-soft tissue fixation splint of the present invention adopts a prefabricated implant-supported temporary restoration, which is convenient for immediate postoperative temporary restoration and shortens the toothless period of the patient; second, the wing plate extending from the temporary crown towards the root can cover the graft, thereby stabilizing the free gingival graft, and at the same time can resist the coronal migration of the facial muscle attachment, prevent the vestibular sulcus from rebounding, and ensure the curative effect of free gingival grafting. Brief Description of the Drawings

[0029] Figure 1 Schematic diagram of the base guide plate structure of the present invention;

[0030] Figure 2 Schematic diagram of the base guide plate and the recipient partial-thickness incision guide plate structure of the present invention;

[0031] Figure 3 Schematic diagram of the connection between the base guide plate and the recipient partial-thickness incision guide plate of the present invention;

[0032] Figure 4 Schematic diagram of the base guide plate and the recipient full-thickness incision guide plate structure of the present invention;

[0033] Figure 5 Schematic diagram of the virtual implant and the upper healing abutment;

[0034] Figure 6 Recipient site range map generated according to implant and healing abutment data;

[0035] Figure 7 Schematic diagram of the base guide plate and the temporary restoration-soft tissue fixation splint structure;

[0036] Figure 8 Schematic diagram of the local structure of the temporary restoration-soft tissue fixation splint;

[0037] Figure 9 Schematic diagram of the donor site guide plate structure;

[0038] Figure 10 Comparison diagram of the donor site guide plate and the recipient site range, where the left figure is the schematic diagram of the donor site guide plate structure, and the right figure is the recipient site range map generated according to implant and healing abutment data;

[0039] Figure 11 Schematic diagram of the local structure of the donor site guiding plate;

[0040] Figure 12 Schematic diagram of the local structure of the recipient site full-thickness incision guiding plate;

[0041] Figure 13 Schematic diagram of the local structure of the recipient site partial-thickness incision guiding plate;

[0042] Figure 14 Schematic diagram of the possible injury to the greater palatine artery caused by improper operation direction when not using the donor site guiding plate to guide the operation.

[0043] The names corresponding to the reference numerals in the drawings are as follows:

[0044] 1 - base guiding plate, 11 - observation window of the base guiding plate, 12 - anode of the plug, 2 - recipient site partial-thickness incision guiding plate, 21 - partial-thickness incision indication window, 22 - attachment of the recipient site partial-thickness incision guiding plate, 23 - plug hole, 3 - recipient site full-thickness incision guiding plate, 31 - guiding window, 32 - attachment of the recipient site full-thickness incision guiding plate, 33 - plug hole, 4 - temporary restoration - soft tissue fixation splint, 41 - implant-supported temporary restoration, 42 - wing plate, 43 - attachment of the fixation splint, 44 - connecting rod, 45 - break point, 46 - occlusal surface screw opening, 47 - plug hole, 5 - donor site guiding plate, 51 - donor site observation window, 52 - donor site incision indication window, 6 - healing abutment, 7 - implant, 8 - greater palatine artery Detailed implementation manners

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of this application.

[0046] Unless otherwise specifically stated, all kinds of raw materials, reagents, instruments, and equipment used in this application can be obtained through the market or can be prepared by existing methods.

[0047] Embodiment 1

[0048] As shown in the attached Figure 1 - attached Figure 13As shown in the figure, the present invention discloses a combined digital guide plate system for free gingival grafting, including a base guide plate 1, a recipient partial-thickness incision indicating guide plate 2, a recipient full-thickness incision indicating guide plate 3, a temporary restoration-soft tissue fixation splint 4, and a donor area indicating guide plate 5; the base guide plate 1 is used to position and fix each guide plate in the recipient area (recipient partial-thickness incision indicating guide plate 2, recipient full-thickness incision indicating guide plate 3) and the temporary restoration-soft tissue fixation splint 4.

[0049] Example 2

[0050] As shown in the attached Figure 1 - attached Figure 13 As shown in the figure, the present invention discloses a combined digital guide plate system for free gingival grafting, including a base guide plate 1, a recipient partial-thickness incision indicating guide plate 2, a recipient full-thickness incision indicating guide plate 3, a temporary restoration-soft tissue fixation splint 4, and a donor area indicating guide plate 5; the base guide plate 1 is used to position and fix each guide plate in the recipient area (recipient partial-thickness incision indicating guide plate 2, recipient full-thickness incision indicating guide plate 3) and the temporary restoration-soft tissue fixation splint 4.

[0051] The base guide plate 1 is clamped and fixed on the recipient dental arch of the patient, and includes a plug anode 12 and at least two base guide plate observation windows 11. Each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 are both provided with plug holes matching the plug anode 12, and the base guide plate 1 is connected to each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 through plugs.

[0052] This Example 2 gives a more preferable structure of the base guide plate 1 on the basis of Example 1. Specifically: the base guide plate 1 is clamped and fixed on the recipient dental arch of the patient, and it includes a plug anode 12 and two base guide plate observation windows 11. The positioning situation of the base guide plate 1 is observed through the base guide plate observation windows 11; each guide plate in the recipient area is positioned and fixed through the plug anode 12.

[0053] Example 3

[0054] As shown in the attached Figure 1 - attached Figure 13 As shown in the figure, the present invention discloses a combined digital guide plate system for free gingival grafting, including a base guide plate 1, a recipient partial-thickness incision indicating guide plate 2, a recipient full-thickness incision indicating guide plate 3, a temporary restoration-soft tissue fixation splint 4, and a donor area indicating guide plate 5; the base guide plate 1 is used to position and fix each guide plate in the recipient area (recipient partial-thickness incision indicating guide plate 2, recipient full-thickness incision indicating guide plate 3) and the temporary restoration-soft tissue fixation splint 4.

[0055] The base guide plate 1 is clamped and fixed on the dental arch of the patient's recipient area, and includes a plug anode 12 and at least two base guide plate observation windows 11. Each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 are provided with plug holes matching the plug anode 12, and the base guide plate 1 is connected to each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 through plugs.

[0056] The semi-thickness incision indication guide plate 2 in the recipient area is used for indicating and positioning the semi-thickness incision range. It includes a semi-thickness incision indication window 21 and a semi-thickness incision indication guide plate accessory 22 in the recipient area. A plug hole 23 is provided on the semi-thickness incision indication guide plate accessory 22 in the recipient area, and the plug hole 23 matches the plug anode 12 of the base guide plate 1. The contour of the semi-thickness incision indication window 21 matches the free gingiva morphology in the mesiodistal direction and the root direction, while the coronal contour is only designed as a horizontal incision at the alveolar ridge crest, facilitating the rapid preparation of the semi-thickness flap. In the semi-thickness incision indication window 21, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position range mesially and distally respectively, and the root side is located at the bottom of the vestibular sulcus.

[0057] Embodiment 3 of the present invention gives a more preferable structure of the semi-thickness incision indication guide plate 2 in the recipient area on the basis of Embodiment 1. Specifically: it includes a semi-thickness incision indication window 21 and a semi-thickness incision indication guide plate accessory 22 in the recipient area. A plug hole 23 matching the plug anode 12 of the base guide plate 1 is provided on the semi-thickness incision indication guide plate accessory 22 in the recipient area. Through the plug, the semi-thickness incision indication guide plate 2 in the recipient area is fixed on the base guide plate 1. When correctly positioned, the plug anode 12 and the upper surface of the semi-thickness incision indication guide plate accessory 22 in the recipient area are in the same plane, facilitating the doctor to determine the positioning of the guide plate accessory.

[0058] The semi-thickness incision indication window 21 is used for indicating and positioning the semi-thickness incision range. Preferably, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position range mesially and distally respectively, and the root side is located at the bottom of the vestibular sulcus. The inner wall of the semi-thickness incision indication window 21 is perpendicular to the mucosa in the alveolar ridge crest area, the mesial area, the distal area, and the root area.

[0059] Embodiment 4

[0060] As attached Figure 1 - Attached Figure 13As shown in the figure, the present invention discloses a combined digital guide plate system for free gingival grafting, including a base guide plate 1, a recipient partial-thickness incision indicating guide plate 2, a recipient full-thickness incision indicating guide plate 3, a temporary prosthesis-soft tissue fixation splint 4, and a donor area indicating guide plate 5; the base guide plate 1 is used to position and fix each guide plate in the recipient area (the recipient partial-thickness incision indicating guide plate 2, the recipient full-thickness incision indicating guide plate 3) and the temporary prosthesis-soft tissue fixation splint 4. The base guide plate 1 is clamped and fixed on the dental arch of the patient's recipient area, and includes a pin anode 12 and at least two base guide plate observation windows 11. Each guide plate in the recipient area and the temporary prosthesis-soft tissue fixation splint 4 are provided with pin holes matching the pin anode 12 of the base guide plate 1, and the base guide plate 1 is connected to each guide plate in the recipient area and the temporary prosthesis-soft tissue fixation splint 4 through pins.

[0061] The recipient partial-thickness incision indicating guide plate 2 is used for indicating and positioning the range of the partial-thickness incision. It includes a partial-thickness incision indicating window 21 and a recipient partial-thickness incision indicating guide plate attachment 22. A pin hole 23 is provided on the recipient partial-thickness incision indicating guide plate attachment 22, and the pin hole 23 matches the pin anode 12 of the base guide plate 1. The contour of the partial-thickness incision indicating window 21 matches the free gingival form in the mesiodistal direction and the root direction, while the coronal contour is only designed as a horizontal incision at the alveolar ridge crest, which is convenient for quickly preparing the partial-thickness flap. In the partial-thickness incision indicating window 21, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position in the mesial and distal directions respectively, and the root side is located at the bottom of the vestibular sulcus.

[0062] The recipient full-thickness incision indicating guide plate 3 is used to indicate the range of the full-thickness incision above the implant 7. A guiding window 31 and a recipient full-thickness incision indicating guide plate attachment 32 are provided on the recipient full-thickness incision indicating guide plate 3. The contour of the guiding window 31 matches the free gingival form, and is consistent with the morphological contour of the healing abutment 6 at the corresponding position of the healing abutment 6; the area corresponding to the healing abutment in the guiding window 31 is the full-thickness incision working area, and the full-thickness incision is only generated in the working area, and the full-thickness flap is only prepared at the corresponding position of the healing abutment, and the remaining positions are still partial-thickness flaps.

[0063] A pin hole 33 matching the pin anode 12 of the base guide plate 1 is provided on the recipient full-thickness incision indicating guide plate attachment 32, which is used to fix the recipient full-thickness incision indicating guide plate 3 on the base guide plate 1.

[0064] Embodiment 4 gives a more preferable structure of the recipient full-thickness incision indicating guide plate 3 on the basis of Embodiment 3. Specifically, a guiding window 31 and a recipient full-thickness incision indicating guide plate accessory 32 are provided on the recipient full-thickness incision indicating guide plate 3. The contour of the guiding window 31 matches the shape of the free gingiva, and is consistent with the morphological contour of the healing abutment 6 at the corresponding position of the healing abutment 6. A pin hole 33 matching the pin anode 12 of the base guide plate 1 is provided on the recipient full-thickness incision indicating guide plate accessory 32 for fixing the recipient full-thickness incision indicating guide plate 3 on the base guide plate 1. During the free gingival grafting, after the preparation of the split-thickness flap is completed, it is necessary to prepare a full-thickness flap around the implant 7 to place the healing abutment 6. The recipient full-thickness incision indicating guide plate 3 is used to indicate the range of the full-thickness incision above the implant 7. The range is designed with reference to the virtual placement of the healing abutment 6, and the guiding window 31 is provided to make it consistent with the morphological contour of the healing abutment 6. The inner wall of the guiding window 31 is perpendicular to the mucosa in the alveolar ridge crest area.

[0065] Embodiment 5

[0066] As shown in the attached Figure 1 - attached Figure 13 As shown, the present invention discloses a combined digital guide plate system for free gingival grafting, including a base guide plate 1, a recipient split-thickness incision indicating guide plate 2, a recipient full-thickness incision indicating guide plate 3, a temporary restoration-soft tissue fixation splint 4 and a donor indicating guide plate 5. The base guide plate 1 is used for positioning and fixing each guide plate in the recipient area (the recipient split-thickness incision indicating guide plate 2, the recipient full-thickness incision indicating guide plate 3) and the temporary restoration-soft tissue fixation splint 4. The base guide plate 1 is clamped and fixed on the dental arch of the patient's recipient area, and includes a pin anode 12 and at least two base guide plate observation windows 11. Each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 are provided with pin holes matching the pin anode 12, and the base guide plate 1 is connected with each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 through pins.

[0067] The recipient split-thickness incision indicating guide plate 2 is used for indicating and positioning the range of the split-thickness incision. It includes a split-thickness incision indicating window 21 and a recipient split-thickness incision indicating guide plate accessory 22. A pin hole 23 is provided on the recipient split-thickness incision indicating guide plate accessory 22, and the pin hole 23 matches the pin anode 12 of the base guide plate 1. The contour of the split-thickness incision indicating window 21 matches the shape of the free gingiva in the mesiodistal direction and the root direction, while the coronal contour is only designed as a horizontal incision at the alveolar ridge crest to facilitate the rapid preparation of the split-thickness flap. In the split-thickness incision indicating window 21, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position range mesially and distally respectively, and the root side is located at the bottom of the vestibular sulcus.

[0068] The recipient full-thickness incision guiding plate 3 is used to indicate the range of the full-thickness incision above the implant 7. A guiding window 31 and a recipient full-thickness incision guiding plate accessory 32 are provided on the recipient full-thickness incision guiding plate 3. The contour of the guiding window 31 matches the morphology of the free gingiva and is consistent with the morphological contour of the healing abutment 6 at the corresponding position of the healing abutment 6; the position corresponding to the healing abutment in the guiding window 31 is the full-thickness incision working area, and the full-thickness incision is only generated in the working area, and the full-thickness flap is only prepared at the position corresponding to the healing abutment, and the rest of the positions are still semi-thickness flaps.

[0069] A pin hole 33 matching the pin anode 12 of the base plate 1 is provided on the recipient full-thickness incision guiding plate accessory 32 for fixing the recipient full-thickness incision guiding plate 3 on the base plate 1.

[0070] The temporary prosthesis-soft tissue fixation splint 4 includes a prefabricated implant-supported temporary prosthesis 41, a wing plate 42 and a fixation splint accessory 43. A pin hole 47 is provided on the fixation splint accessory 43. The wing plate 42 extends from the temporary crown towards the root and is consistent with the morphology of the free gingiva. The extension ranges of the wing plate 42 in the mesial, distal and root directions are 1 mm larger than the range of the free gingiva to protect and stabilize the underlying free gingiva.

[0071] In the temporary prosthesis-soft tissue fixation splint 4, the fixation splint accessory 43 and the implant-supported temporary prosthesis 41 are connected by a connecting rod 44, and a break point 45 is provided on the connecting rod 44.

[0072] Embodiment 5 provides a more preferred structure of the temporary restoration-soft tissue fixation splint 4 on the basis of Embodiment 4. Specifically, the temporary restoration-soft tissue fixation splint 4 includes a prefabricated implant-supported temporary restoration 41, a wing plate 42, and a fixation splint attachment 43. A pin hole 47 matching the pin anode 12 of the base guide plate 1 is provided on the fixation splint attachment 43 for fixing the temporary restoration-soft tissue fixation splint 4 to the base guide plate 1. The wing plate 42 extends from the temporary crown towards the root, and is consistent with the morphology of the free gingiva. The extension ranges of the wing plate in the mesial, distal, and root directions are 1 mm greater than the range of the free gingiva to protect and stabilize the underlying free gingiva. In the temporary restoration-soft tissue fixation splint 4, the fixation splint attachment 43 and the implant-supported temporary restoration 41 are connected by a connecting rod 44, and a break point 45 is provided on the connecting rod 44. The temporary restoration-soft tissue fixation splint 4 is used for postoperative temporary restoration, shortening the toothless period of the patient. At the same time, it can stabilize the free gingival graft, prevent the vestibular sulcus from rebounding, and ensure the curative effect of free gingival transplantation. Among them, the prefabricated implant-supported temporary restoration 41 is provided with an occlusal surface screw opening according to the position where the implant 7 penetrates, which is beneficial for filling glue immediately after soft tissue surgery to complete temporary restoration. The wing plate 42 is consistent with the morphology of the free gingiva, thereby improving the adaptability of the soft tissue fixation splint. The temporary restoration-soft tissue fixation splint 4 and the base guide plate 1 are connected by pins, which is convenient for guiding the doctor to fill glue when the temporary restoration is completely seated, improving the accuracy of temporary restoration. A break point 45 is provided on the connecting rod 44, which can be disconnected after filling glue is completed, facilitating subsequent post-treatment and polishing of the restoration.

[0073] Embodiment 6

[0074] As shown in the attached Figure 1 - attached Figure 13 As shown in the figure, the present invention discloses a combined digital guide plate system for free gingival transplantation, including a base guide plate 1, a recipient partial-thickness incision indicating guide plate 2, a recipient full-thickness incision indicating guide plate 3, a temporary restoration-soft tissue fixation splint 4, and a donor area indicating guide plate 5. The base guide plate 1 is used to position and fix each guide plate in the recipient area (the recipient partial-thickness incision indicating guide plate 2, the recipient full-thickness incision indicating guide plate 3) and the temporary restoration-soft tissue fixation splint 4.

[0075] The base guide plate 1 is clamped and fixed on the recipient dental arch of the patient, and includes a pin anode 12 and at least two base guide plate observation windows 11. Each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 are provided with pin holes matching the pin anode 12, and the base guide plate 1 is connected to each guide plate in the recipient area and the temporary restoration-soft tissue fixation splint 4 by pins.

[0076] The recipient partial-thickness incision indicating guide plate 2 is used for indicating and positioning the partial-thickness incision range, and it includes a partial-thickness incision indicating window 21 and a recipient partial-thickness incision indicating guide plate attachment 22. A pin hole 23 is provided on the recipient partial-thickness flap orifice indicating guide plate attachment 22, and this pin hole 23 matches the pin anode 12 of the base guide plate 1. The contour of the partial-thickness incision indicating window 21 matches the free gingival morphology in the mesiodistal direction and the root direction, while the coronal contour is only designed as a horizontal incision at the alveolar ridge crest, facilitating the rapid preparation of the partial-thickness flap. In the partial-thickness incision indicating window 21, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position range mesially and distally respectively, and the root side is located at the bottom of the vestibular sulcus.

[0077] The recipient full-thickness incision indicating guide plate 3 is used for indicating the full-thickness incision range above the implant 7. A guiding window 31 and a recipient full-thickness incision indicating guide plate attachment 32 are provided on the recipient full-thickness incision indicating guide plate 3; the contour of the guiding window 31 matches the free gingival morphology, and is consistent with the morphological contour of the healing abutment 6 at the corresponding position of the healing abutment 6; the full-thickness incision working area is at the corresponding position of the guiding window 31 corresponding to the healing abutment. The full-thickness incision is only generated in the working area, and the full-thickness flap is only prepared at the corresponding position of the healing abutment, and the remaining positions are still partial-thickness flaps.

[0078] A pin hole 33 that matches the pin anode 12 of the base guide plate 1 is provided on the recipient full-thickness incision indicating guide plate attachment 32 for fixing the recipient full-thickness incision indicating guide plate 3 to the base guide plate 1. The temporary restoration - soft tissue fixation splint 4 includes a prefabricated implant-supported temporary restoration 41, wing plates 42 and a fixation splint attachment 43. A pin hole 47 is provided on the fixation splint attachment 43. The wing plates 42 extend from the temporary crown to the root, and are consistent with the free gingival morphology; the mesial, distal and root extensions of the wing plates 42 are 1 mm greater than the free gingival range to protect and stabilize the underlying free gingiva.

[0079] In the temporary restoration - soft tissue fixation splint 4, the fixation splint attachment 43 and the implant-supported temporary restoration 41 are connected by a connecting rod 44, and a break point 45 is provided on the connecting rod 44.

[0080] The donor area indicating guide plate 5 is used for positioning the spatial position of the free gingival donor area and is seated on the patient's donor area dental arch by the clamping force; a donor area observation window 51 and a donor area incision indicating window 52 are provided on the donor area indicating guide plate 5; the number of donor area observation windows 51 is greater than or equal to 2.

[0081] The contour of the donor area incision indicating window 52 is consistent with the morphology after placing the healing abutment in the recipient area; the donor area incision indicating window 52 avoids the greater palatine artery, and its edge is at least 2 mm away from the greater palatine artery.

[0082] Embodiment 6 provides a more preferred structure of the donor site indicating guide plate 5 on the basis of Embodiment 5. Specifically: at least two donor site observation windows 51 and donor site incision indicating windows 52 are provided on the donor site indicating guide plate 5; the contour of the donor site incision indicating window 52 is consistent with the shape after the healing abutment is placed in the recipient site; the donor site incision indicating window 52 avoids the greater palatine artery, and its edge is at least 2 mm away from the greater palatine artery. The donor site observation window 51 is used to observe the positioning of the donor site indicating guide plate 5. By fitting the patient's CBCT data, marking the course of the greater palatine artery, and designing the donor site incision indicating window 52 to avoid the greater palatine artery, with its edge at least 2 mm away from the greater palatine artery, and the edge of the guide plate being perpendicular to the soft tissue, it is convenient to indicate the incision direction to obtain a semi-thick flap with the target thickness while avoiding accidental injury to blood vessels. The coronal inner wall, mesial and distal inner walls of the donor site indicating guide plate 5 are perpendicular to the oral mucosa, which is convenient for guiding the operator to make an incision at a specific angle to prepare soft tissue with the target thickness.

[0083] As shown in the Figure 14 attachment, when the donor site indicating guide plate 5 is not used to guide the operation, damage to the greater palatine artery may occur due to improper operation direction.

[0084] The preparation method of the present invention is as follows:

[0085] First, according to the patient's CBCT data and digital optical scanning data (intraoral scan or model chamber scan) before the second stage of the operation, fit and generate the positions and shapes of the implant 7 and the healing abutment 6, generate the free gingival shape, as well as the free gingival recipient site range and the donor site acquisition range; preferably, the free gingival acquisition range extends half a tooth position mesially and distally, and the apical position is at the bottom of the vestibular sulcus.

[0086] Design the recipient site semi-thick incision indicating guide plate 2, the recipient site full-thick incision indicating guide plate 3, the temporary restoration-soft tissue fixation splint 4 and the base guide plate 1 according to the free gingival shape and the recipient site range. Among them, in the semi-thick incision indicating window 21, the horizontal incision at the alveolar ridge crest should be located at the mucogingival junction, extending half a tooth position mesially and distally, and the apical position is at the bottom of the vestibular sulcus; the contour of the guiding window 31 of the recipient site full-thick incision indicating guide plate 3 matches the free gingival shape, and is consistent with the shape contour of the healing abutment 6 at the corresponding position of the healing abutment 6; the working area of the guiding window 31 is mainly the corresponding position of the healing abutment, that is, the full-thick incision is only generated at the corresponding position of the healing abutment, and the full-thick flap is only prepared at the corresponding position of the healing abutment, and the remaining positions are still semi-thick flaps.

[0087] The prefabricated implant-supported temporary restoration 41 in the temporary restoration-soft tissue fixation splint 4 is provided with an occlusal surface screw opening 46.

[0088] Design the occlusal surface screw opening on the prefabricated implant-supported temporary restoration 41 according to the position where the implant 7 penetrates.

[0089] Design the wing plate shape according to the free gingiva to improve the adaptability of the soft tissue fixation splint.

[0090] The present invention provides a combined digital guide plate system for free gingival grafting, which covers the recipient partial-thickness incision guide plate, the recipient full-thickness flap incision guide plate, the provisional restoration-soft tissue fixation splint, and the donor site guide plate. Combining the composite structure design of "base guide plate + split accessory guide plate", the functional integration of the overall treatment process of free gingival grafting is realized.

[0091] Recipient partial-thickness incision guide plate: Before free gingival grafting, the preparation of the recipient area, that is, the preparation of the partial-thickness flap, is required. The recipient partial-thickness incision guide plate of the present invention can indicate the ideal incision range designed virtually before surgery, fully considering the extension range in the coronal, apical, mesial, and distal directions, facilitating the precise preparation of the partial-thickness flap.

[0092] Recipient full-thickness incision guide plate: After the preparation of the partial-thickness flap, it is necessary to continue to prepare the full-thickness flap above the implant and place the healing abutment. The recipient full-thickness incision guide plate of the present invention pre-designs the edge of the abutment by virtually placing the healing abutment, facilitating the doctor to complete the full-thickness incision and remove the surface soft tissue.

[0093] Provisional restoration-soft tissue fixation splint: This guide plate has two important functions: First, a prefabricated implant-supported provisional restoration is used to facilitate immediate postoperative provisional restoration and shorten the toothless period of the patient; Second, the wing plate extends from the provisional crown towards the root to cover the graft, thereby stabilizing the free gingival graft, and at the same time, it can resist the coronal migration of the facial muscle attachment, prevent the vestibular sulcus from rebounding, and ensure the curative effect of free gingival grafting.

[0094] Donor site guide plate: A tooth-supported guide plate is used to outline the donor site range, which is convenient to place and has stable retention; By means of digital methods, considering the required soft tissue morphology of the recipient area and the local neurovascular course, the windowing range of the donor site guide plate is designed. The guide plate around the window has a certain thickness, and its edge has a specific direction, facilitating the indication of the knife insertion direction and avoiding damage to the anatomical structure.

[0095] The above are only the preferred embodiments of the present invention, which are illustrative for the present invention rather than limiting the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A combined digital guide system for free gingival transplantation, characterized in that: The invention comprises a base guide (1), a recipient area half-thickness incision indicating guide (2), a recipient area full-thickness incision indicating guide (3), a temporary restoration-soft tissue fixing splint (4) and a donor area indicating guide (5); the base guide (1) is used for positioning and fixing the recipient area half-thickness incision indicating guide (2), the recipient area full-thickness incision indicating guide (3) and the temporary restoration-soft tissue fixing splint (4).

2. A combined digital guide plate system for free gingival transplantation according to claim 1, characterized in that: The base guide plate (1) is clamped and fixed on the patient's dental arch, and comprises a base guide plate observation window (11) and a latch anode (12); the recipient area half-thickness incision indicator guide plate (2), the recipient area full-thickness incision indicator guide plate (3) and the temporary restoration-soft tissue fixation splint (4) are all provided with latch holes matching the latch anode (12); the base guide plate (1) is connected to the recipient area half-thickness incision indicator guide plate (2), the recipient area full-thickness incision indicator guide plate (3) and the temporary restoration-soft tissue fixation splint (4) via a latch; Preferably, the number of the base guide plate observation windows (11) is greater than or equal to 2.

3. A combined digital guide plate system for free gingival transplantation according to claim 1 or 2, characterized in that: The recipient area semi-thickness incision indicating guide (2) is used for indicating and positioning the incision range during the preparation of a semi-thickness flap, and comprises a semi-thickness incision indicating window (21) and a recipient area semi-thickness incision indicating guide attachment (22). The recipient area semi-thickness incision indicating guide attachment (22) is provided with a latch hole (23). The contour of the semi-thickness incision indicating window (21) matches the free gingival morphology in the mesiodistal and root directions, and the coronal contour is only designed as a horizontal incision at the alveolar ridge top, so as to facilitate the rapid preparation of a semi-thickness flap. Preferably, in the semi-thickness incision indicating window (21), the horizontal incision at the alveolar ridge top should be located at the membrane-gingival junction, extending half of the tooth position range in the mesiodistal and distal directions respectively, and the root direction is located at the bottom of the vestibule groove.

4. A combined digital guide plate system for free gingival transplantation according to claim 1 or 2, characterized in that: The recipient area full-thickness incision indicating guide (3) is used to indicate the incision range of the full-thickness flap above the implant. The recipient area full-thickness incision indicating guide (3) is provided with a guide window (31) and a recipient area full-thickness incision indicating guide attachment (32). The recipient area full-thickness incision indicating guide attachment (32) is provided with a pin hole (33). The contour of the guide window (31) matches the morphology of the free gingiva, and is consistent with the morphological contour of the healing abutment at a corresponding position of the healing abutment. The position of the guide window (31) corresponding to the healing abutment is a full-thickness incision working area, and the full-thickness incision is only produced in the working area.

5. A combined digital guide plate system for free gingival transplantation according to claim 1 or 2, characterized in that: The temporary restoration-soft tissue fixation splint (4) comprises a prefabricated implant-supported temporary restoration (41), a wing plate (42) and a fixed splint attachment (43), wherein the fixed splint attachment (43) is provided with a pin hole (47), and the wing plate (42) extends from the temporary crown to the root and is consistent with the shape of the free gingiva; the prefabricated implant-supported temporary restoration (41) is provided with an occlusal screw opening (46); preferably, the extension range of the wing plate (42) in the mesial, distal and root directions is greater than the free gingiva range by 1 mm to protect and stabilize the free gingiva below.

6. A combined digital guide plate system for free gingival transplantation according to claim 1 or 2, characterized in that: In the temporary restoration-soft tissue fixation splint (4), the fixation splint attachment (43) is connected to the implant-supported temporary restoration (41) via a connecting rod (44), and a breakpoint (45) is provided on the connecting rod (44).

7. A combined digital guide plate system for free gingival transplantation according to claim 1 or 2, characterized in that: The donor area indication guide (5) is used for spatial positioning of the free gingival donor area and is located on the patient's donor dental arch through a clamping force; the donor area indication guide (5) is provided with a donor area observation window (51) and a donor area incision indication window (52); preferably, the number of the donor area observation windows (51) is greater than or equal to 2.

8. The combined digital guide plate system for free gingival transplantation according to claim 7, characterized in that: The outline of the donor site incision indicator window (52) is consistent with the shape of the recipient site after the healing abutment is placed; Preferably, the donor area incision indicator window (52) avoids the greater palatine artery, and its edge is at least 2 mm away from the greater palatine artery; Preferably, the inner wall of the donor area incision indicator window (52) is perpendicular to the mucosa.

9. A combined digital guide plate system for free gingival transplantation according to claim 1 or 2, characterized in that: The inner wall of the semi-thickness incision indicator window (21) is perpendicular to the mucosa in the alveolar crest region, the mesial region, the distal region, and the root region; The inner wall of the guide window (31) is perpendicular to the mucosa in the alveolar ridge top area.

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