High-precision guide for removable denture implant placement

Abstract

This utility model relates to the field of dental implant technology, and in particular to a high-precision guide plate for removable dental implant implantation, comprising a guide plate body, a positioning component, and an opening component; the upper end of the guide plate body is equipped with an opening component for preventing excessive drilling without repeated measurements, and the lower end of the guide plate body is equipped with a positioning component for rapid adsorption and alignment, preventing displacement of traditional guide plates due to soft tissue deformation. The positioning component includes patches, and two sets of patches are symmetrically arranged at the lower end of the guide plate body for pre-attaching to the patient's mouth. Multiple sets of neodymium magnets for use in patients with insufficient bone content or who fear invasive surgery are sequentially installed from left to right on the upper surface of the patches. A metal ring magnetically connected to the neodymium magnets is provided at the center of the lower surface of the guide plate body. This utility model provides a non-invasive fixation method by utilizing neodymium magnets, reducing the patient's fear and physical burden, and is also applicable to more types of cases.

Description

Technical Field

[0001] This utility model relates to the field of dental implant technology, and in particular to a high-precision guide plate for implantation of removable dental implants. Background Technology

[0002] A high-precision guide for removable dental implant placement is an auxiliary tool used in dental implant surgery. It primarily guides the precise positioning of the implant during the procedure, ensuring a high success rate and patient comfort. The high-precision guide is a template created with computer assistance using 3D imaging data based on the patient's oral condition. By accurately simulating the patient's bone morphology and soft tissue distribution, it helps the surgeon place the implant at the optimal position, depth, and angle during the procedure. This ensures a high success rate and a natural final restoration, effectively reducing complications such as maxillary sinus perforation and mandibular nerve canal damage caused by incorrect orientation or insufficient height, thus improving surgical safety.

[0003] Meanwhile, in traditional implant surgery, doctors need to manually control the drilling depth of the drill bit in the absence of precise limiting devices. Due to the narrow space inside the oral cavity and limited field of vision, doctors often need to use tools such as rulers and measuring rods to repeatedly confirm the drilling depth. Slight carelessness may damage important anatomical structures below, such as the maxillary sinus and inferior alveolar nerve, leading to serious complications. During the operation, factors such as flap incision, instrument contact, and blood seepage can cause deformation of soft tissues such as the gums and mucosa, which can lead to slight displacement of the originally well-fitting guide plate. Traditional guide plates are mostly fixed by clips, screws, or temporary adhesives, but these methods are very easy to fail when faced with soft tissue movement or slight patient movement. Utility Model Content

[0004] To overcome the problems that traditional guides may shift due to the natural shape of the patient's oral soft tissue or the operation during the procedure, affecting the accuracy of the implant's position, and that traditional methods require doctors to repeatedly measure to ensure accurate drilling depth during dental implantation, this invention provides a high-precision guide for removable denture implantation.

[0005] The technical solution is as follows: A high-precision guide plate for removable denture implantation includes a guide plate body, a positioning component, and an opening component; the upper end of the guide plate body is equipped with an opening component to prevent excessive drilling without repeated measurements; the lower end of the guide plate body is equipped with a positioning component for rapid adsorption and alignment to prevent displacement caused by soft tissue deformation of traditional guide plates; the positioning component includes patches; two sets of patches are symmetrically arranged at the lower end of the guide plate body for pre-attaching to the patient's mouth; multiple sets of neodymium magnets are installed from left to right on the upper surface of the patches for use by patients with insufficient bone content or who are afraid of traumatic surgery; a metal ring magnetically connected to the neodymium magnets is located at the center of the lower surface of the guide plate body.

[0006] Furthermore, the lower surface of the patch is provided with multiple sets of suction cups from left to right, and the lower surface of the metal ring is provided with a magnetic suction groove that is fastened and connected to the neodymium magnet.

[0007] Furthermore, a silicone pad is fitted at the lower end of the metal ring, and two sets of sealing plates are provided on the lower ends of both sides of the silicone pad to be fastened and connected to the patch.

[0008] Furthermore, two sets of anchoring holes are symmetrically opened at the center of the side surfaces at both ends of the guide plate body, and bone nails are inserted through the anchoring holes.

[0009] Furthermore, the opening assembly includes a dental cavity, with a dental cavity for placing teeth opened in the center of the guide plate body.

[0010] Furthermore, the upper surface of the guide plate body is provided with drilled grooves from left to right, and the surface of the drilled grooves is provided with threaded grooves.

[0011] Furthermore, a screw rod is installed through the center of the drilled groove, and a rotation limit ring is fixedly connected to the upper surface of the screw rod.

[0012] Furthermore, a limiting cavity is provided at the center of the rotating limiting ring, which is connected to the tooth cavity through the screw.

[0013] The beneficial effects are as follows: This invention effectively prevents excessive drilling depth by using a rotating limiting ring and limiting cavity design in the drilling assembly, ensuring accurate drilling depth and avoiding damage to important anatomical structures below. The positioning assembly uses a magnetic connection between a neodymium magnet and a metal ring, along with a suction cup on the lower surface of the patch, allowing for quick and stable adhesion to the patient's oral cavity. This significantly reduces the displacement problems of traditional guide plates caused by soft tissue deformation or slight patient movements, ensuring the accuracy of implant placement. For patients with insufficient bone mass or those who fear invasive surgery, the use of neodymium magnets provides a non-invasive fixation method, reducing patient fear and physical burden, making the device suitable for a wider range of patients. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the high-precision guide plate for implantation of removable dentures according to this utility model.

[0015] Figure 2 This is a schematic diagram of the suction cup structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the silicone pad structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the drilled groove structure of this utility model;

[0018] Figure 5This is a schematic diagram of the rotating limiting ring structure of this utility model.

[0019] In the attached diagram, the following are the reference numerals: 1. Guide plate body; 201. Patch; 202. Anchoring hole; 203. Bone nail; 204. Neodymium magnet; 205. Suction cup; 206. Silicone pad; 207. Sealing plate; 208. Metal ring; 209. Magnetic groove; 301. Tooth cavity; 302. Drilled groove; 303. Threaded groove; 304. Screw; 305. Rotary limiting ring; 306. Limiting cavity. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Among the currently discovered feasible technologies, the following are described:

[0022] The application of high-precision surgical guides in dental implant surgery marks a further development of oral implant technology towards digitalization and precision. These guides acquire high-resolution 3D imaging data of the patient before surgery, including cone-beam computed tomography (CBCT) and intraoral optical scans, and combine this with advanced computer-aided design and manufacturing (CAD / CAM) technology to achieve fully individualized guide fabrication. This highly customized guide perfectly conforms to the alveolar ridge morphology, bone tissue distribution, and soft tissue contours within the patient's oral cavity, providing a precise spatial reference system during surgery. During the actual procedure, the guide provides an accurate operating path for the drill bit through its pre-set guide channels and, in conjunction with limiting devices, controls the drilling depth, ensuring that the implant cavity is prepared according to the pre-planned position, angle, and depth. This "pre-operative simulation, intra-operative execution" model greatly improves the predictability of implant surgery and avoids serious complications such as implant tilting, axial misalignment, damage to adjacent teeth, or even invasion of neurovascular structures caused by human error or anatomical misjudgment in traditional free-hand operation. Especially in cases where the maxillary sinus floor is close to the alveolar ridge crest or the mandibular nerve canal has complex variations, the use of high-precision surgical guides can significantly reduce surgical risks and improve safety. Furthermore, because the entire surgical process is more efficient and standardized under the guidance of the guide, the surgeon does not need to repeatedly measure and adjust angles, reducing intraoperative operation time and minimizing the need for local soft tissue traction and trauma. This facilitates minimally invasive or even flapless implant surgery, which is particularly important for elderly patients, those with multiple underlying diseases, or those with a strong fear of surgery. It can minimize physiological burden while improving the overall treatment experience and satisfaction. From a clinical restorative perspective, high-precision surgical guides not only serve implant surgery but also closely connect with subsequent prosthetic restorations. Preoperatively, digital methods are used to simulate the final restoration's morphology, occlusal relationship, and aesthetic effect, ensuring that the implant placement better meets restorative needs, truly realizing the "restoration-oriented" implant philosophy. This approach can effectively avoid problems such as restorative difficulties, framework breakage, and occlusal imbalance caused by improper implant placement, improving the long-term stability and comfort of the prosthesis.

[0023] In traditional dental implant surgery, dentists typically rely on manual manipulation and experience to prepare the implant cavity. Due to the limited space and field of vision within the oral cavity, especially in the posterior tooth area or when soft tissue is swollen, it is difficult for dentists to obtain a clear operating view. Furthermore, the lack of precise limiting devices means that drill depth control depends entirely on human judgment and auxiliary tools. Therefore, in practice, dentists often need to repeatedly confirm the drilling depth and angle using rulers, measuring rods, or other temporary markings. This repetitive operation not only prolongs the operation time and increases the patient's psychological stress and physical discomfort, but more importantly, it carries a significant risk of error. Improper control of the drilling depth can cause serious anatomical damage, such as penetrating the maxillary sinus floor, injuring the inferior alveolar nerve canal, or even damaging nasal structures, leading to postoperative complications such as nasal bleeding, maxillary sinusitis, and numbness of the lower lip. In severe cases, it can also affect the patient's speech, chewing function, and overall quality of life. In addition, in routine surgical procedures, dentists usually perform flap surgery to fully expose the bone surface, facilitating observation and control of implant cavity preparation. However, this process itself causes stretching and deformation of soft tissues such as the gums and mucosa. Combined with factors like instrument contact, blood seepage, and irrigation fluid accumulation during surgery, these factors further alter the shape and position of the soft tissues. Even if the surgical guide used preoperatively is precisely designed and initially fits well, minor but critical displacements can easily occur under the influence of these factors. To address this issue, traditional surgical guides often use methods such as clips, screws, or temporary adhesives for retention. However, these methods generally have certain limitations: clip-on guides rely on healthy natural teeth as support points, making them unsuitable for patients with complete edentulism; screw-fixed guides offer better stability but require additional retention holes, increasing surgical trauma; and temporary adhesives are easily affected by saliva and blood, leading to decreased retention force. Overall, these traditional fixation methods often fail to provide continuous and stable support when faced with soft tissue deformation, intraoperative manipulation, or slight patient movement, thus affecting the accuracy of guide plate guidance. In summary, traditional implant surgery presents numerous challenges in terms of operational precision, intraoperative stability, and safety, especially in complex cases or when minimally invasive procedures are required, further highlighting the shortcomings of existing technologies. This is precisely one of the important reasons driving the continuous optimization and widespread application of high-precision guide plates.

[0024] like Figures 1-5As shown, the high-precision guide plate for removable denture implantation includes a guide plate body 1, a positioning component, and an opening component. The upper end of the guide plate body 1 is equipped with an opening component to prevent excessive drilling without repeated measurements. The lower end of the guide plate body 1 is equipped with a positioning component for rapid adsorption and alignment to prevent displacement of traditional guide plates due to soft tissue deformation. The positioning component includes a patch 201. Two sets of patches 201 are symmetrically arranged at the lower end of the guide plate body 1 for pre-attaching to the patient's mouth. Multiple sets of neodymium magnets 204 are installed from left to right on the upper surface of the patch 201 for use by patients with insufficient bone content or who are afraid of traumatic surgery. A metal ring 208 magnetically connected to the neodymium magnet 204 is provided at the center of the lower surface of the guide plate body 1.

[0025] The lower surface of the patch 201 has multiple suction cups 205 arranged sequentially from left to right. The lower surface of the metal ring 208 has magnetic grooves 209 that engage with neodymium magnets 204, enhancing the adhesion between the guide plate and the oral soft tissue, preventing intraoperative displacement, improving positioning stability, and achieving precise alignment and stable connection between magnetic components. A silicone pad 206 is fitted onto the lower end of the metal ring 208. The lower ends of the silicone pad 206 have two sets of sealing plates 207 that engage with the patch 201, providing cushioning protection and preventing direct metal contact with the soft tissue. The sealing plate 207 strengthens the seal and stability between the guide plate and the oral tissue to prevent slippage or displacement during the operation. Two sets of anchoring holes 202 are symmetrically opened at the center of the two ends of the guide plate body 1. Bone nails 203 are inserted through the anchoring holes 202. The anchoring holes 202 allow the use of bone nails 203 to further fix the guide plate, which improves the stability and accuracy of the overall structure. The bone nails 203 pass through the anchoring holes 202 to firmly fix the guide plate to the bone, ensuring the absolute stability of the guide plate throughout the entire operation.

[0026] During operation, the high-precision guide plate achieves rapid and stable fixation through the positioning component. The patch 201 is pre-attached to the patient's oral cavity, and the neodymium magnet 204 on it magnetically attracts the metal ring 208 at the lower end of the guide plate. The magnetic groove 209 on the metal ring 208 achieves precise alignment. The suction cup 205 below the patch 201 further enhances the attraction force. The silicone pad 206 provides cushioning and protection to avoid damage to soft tissue. At the same time, the sealing plates 207 on both sides improve the sealing and anti-slip ability. Bone nails 203 are inserted into the anchoring holes 202 at both ends of the guide plate to firmly fix the guide plate to the bone and ensure that it does not shift during the operation. The opening component at the upper end controls the drilling depth through the limiting structure to prevent excessive drilling and damage to important tissues. The overall structure works together to achieve high-precision implantation.

[0027] Please see Figures 3-4The drilling assembly includes a dental cavity 301. The dental cavity 301, located at the center of the guide plate body 1, provides an accurate positional reference for the implant, ensuring that the implant can be inserted in the predetermined direction and depth. Drilling grooves 302 are sequentially formed from left to right on the upper surface of the guide plate body 1. Threaded grooves 303 are formed on the surface of the drilling grooves 302. The threaded design of the drilling grooves 302 and their surfaces helps to precisely control the path and depth of the drill bit, improving surgical accuracy and avoiding the risks caused by excessive drilling. A screw 304 is centrally located inside the 302. A rotating limiting ring 305 is fixedly connected to the upper surface of the screw 304. The combination of the screw 304 and the rotating limiting ring 305 can precisely adjust the drilling depth, prevent accidental over-drilling, and improve surgical safety. A limiting cavity 306 is opened in the center of the rotating limiting ring 305, which passes through the screw 304 and connects to the tooth cavity 301. The design of the limiting cavity 306 ensures that the drill bit enters the tooth cavity 301 along the predetermined trajectory, ensuring the correct placement and angle of the implant and improving the success rate of the surgery.

[0028] The opening assembly provides precise spatial positioning for the implant through the cavity 301 at the center of the guide plate, ensuring that the implantation direction and depth conform to the preoperative plan. The threaded structure in the drill slot 302 cooperates with the screw 304 to control the drill bit stroke. The rotating limiting ring 305 adjusts and locks the drilling depth to prevent excessive damage caused by misoperation. The limiting cavity 306 guides the drill bit into the cavity 301 along the predetermined path, ensuring the accuracy of implant placement and surgical safety.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision guide plate for implantation of removable dentures, characterized in that, The device includes a guide plate body (1); it also includes a positioning component and an opening component; the upper end of the guide plate body (1) is equipped with an opening component to prevent drilling too deep without repeated measurements; the lower end of the guide plate body (1) is equipped with a positioning component to quickly adsorb and align the device and prevent displacement of the traditional guide plate due to soft tissue deformation; the positioning component includes a patch (201); the lower end of the guide plate body (1) is symmetrically provided with two sets of patches (201) for pre-attaching into the patient's mouth; the upper surface of the patch (201) is sequentially equipped with multiple sets of neodymium magnets (204) for use in patients with insufficient bone content or who are afraid of trauma surgery; the center of the lower surface of the guide plate body (1) is provided with a metal ring (208) that is magnetically connected to the neodymium magnet (204).

2. The high-precision guide plate for removable denture implantation according to claim 1, characterized in that, The patch (201) has multiple sets of suction cups (205) arranged from left to right on its lower surface, and the metal ring (208) has a magnetic groove (209) on its lower surface that is engaged with the neodymium magnet (204).

3. The high-precision guide plate for removable denture implantation according to claim 2, characterized in that, A silicone pad (206) is fitted at the lower end of the metal ring (208), and two sets of sealing plates (207) are provided at the lower ends of both sides of the silicone pad (206) to be fastened and connected to the patch (201).

4. The high-precision guide plate for removable denture implantation according to claim 1, characterized in that, Two sets of anchoring holes (202) are symmetrically opened at the center of the two sides of the guide plate body (1), and bone nails (203) are inserted through the anchoring holes (202).

5. The high-precision guide plate for removable denture implantation according to claim 1, characterized in that, The opening assembly includes a dental cavity (301), and the dental cavity (301) for placing teeth is opened in the center of the guide plate body (1).

6. The high-precision guide plate for removable denture implantation according to claim 1, characterized in that, The upper surface of the guide plate body (1) is provided with drilling grooves (302) from left to right, and the surface of the drilling grooves (302) is provided with threaded grooves (303).

7. The high-precision guide plate for removable denture implantation according to claim 6, characterized in that, A screw (304) is provided through the center of the drilled groove (302), and a rotation limit ring (305) is fixedly connected to the upper surface of the screw (304).

8. The high-precision guide plate for removable denture implantation according to claim 7, characterized in that, The rotating limiting ring (305) has a limiting cavity (306) at its center that is connected to the tooth cavity (301) by a through screw (304).

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