Implant depth-keeping verification guide plate

By designing an implantation depth verification guide and utilizing a combination of supports and depth confirmation columns, the problem of large positioning errors in implantation guides was solved, achieving precise positioning and high stability of implantation and simplifying the clinical operation process.

CN224251528UActive Publication Date: 2026-05-19GUANGZHOU DELUN DENTAL CLINIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU DELUN DENTAL CLINIC CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing implant guides have slight deviations in positioning the long axis of the implant, resulting in large errors in deep center positioning and making it difficult to meet the requirements for precise positioning. Especially when used in edentulous areas, bone-supported guides have high requirements for bone surface fit and are easily affected by the shape of the jawbone.

Method used

Design an implant depth verification guide plate, including a support, an observation window, and a depth confirmation post. The support is fixed on the dentition. The installation status is visually confirmed through the observation window. The depth confirmation post verifies the implant depth and angle. The guide plate is 3D printed in one piece to reduce errors.

Benefits of technology

It enables precise fixation of the guide plate on the dentition, ensuring that the angle and depth of the implantation hole meet the preset data, avoiding flap operation and improving implantation accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an implant depthkeeping verification guide plate, which belongs to the technical field of medical treatment and comprises a guide plate, the guide plate can be fixed on the dentition of a patient and comprises a bracket, an in-position observation window and a depthkeeping confirmation column, and a groove with the same shape as the dentition of the patient is arranged at the bottom of the bracket; the in-place observation window is arranged at the top of the bracket and can confirm the mounting condition of the guide plate; and the depth-keeping confirmation column is arranged on the side surface of the bracket and extends into the implant implanting part of the patient. According to the utility model, the bottom of the bracket is provided with the groove, and the guide plate can be fixed on the dental arch of a patient through the groove at the bottom of the bracket, so that the guide plate is positioned on the dental arch, and the guide stability can be provided. The in-place observation window is arranged on the guide plate and is an arc-shaped window, so that whether the guide plate is completely attached or not can be confirmed. The depth-keeping confirmation column is arranged on the guide plate and can confirm the depth and angle of the implant of the patient to ensure that the mounting hole of the implant is consistent with the set data.
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Description

Technical Field

[0001] This utility model relates to a guide plate for determining the depth of implantation, belonging to the field of medical technology. Background Technology

[0002] With the continuous development of dental implant technology, digital surgical guides have become an important means to improve implant precision. Existing digital surgical guides can be categorized into tooth-supported, bone-supported, and mucosa-supported types based on their contact method with the patient's jawbone tissue. In comparison, tooth-supported surgical guides rely on the natural tooth crown to provide optimal stability and positioning accuracy; bone-supported guides can be used in edentulous areas, but require high bone surface fit and are easily affected by jawbone morphology; mucosa-supported guides are mainly used for full-mouth implants, but the elasticity of soft tissue leads to larger positioning errors.

[0003] In existing technologies, key data for implant placement include the top center point, bottom center point, and long axis direction of the implant. While the top center point is easily positioned and controlled using a guide, even small deviations in the long axis direction can be amplified to the bottom center point, resulting in significant errors in deep center positioning and making it difficult to meet precise positioning requirements. Therefore, a depth-verification guide is needed to verify and confirm the placement points. In some implantation cases requiring flap surgery, using a depth-verification guide can avoid the need for flap surgery. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a planting depth verification guide plate, which solves the problem of inconvenience in verifying and confirming the location.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution: a planting depth verification guide plate, comprising...

[0006] Guide plate,

[0007] The guide plate can be fixed to the patient's teeth.

[0008] The guide plate includes a support, an observation window for positioning, and a depth confirmation post. The bottom of the support is provided with a groove that is the same shape as the patient's dentition.

[0009] The positioning observation window is located on the top of the support, allowing the patient's teeth to be observed through the positioning observation window to confirm the installation status of the guide plate;

[0010] The depth confirmation post is located on the side of the support and extends into the patient's implantation site.

[0011] Preferably, the placement observation window is an arc-shaped notch, through which the tops of multiple patient teeth can be exposed.

[0012] Preferably, two of the patient's teeth are exposed through the placement observation window, and the exposed teeth are not adjacent to the implantation site.

[0013] Preferably, the shape of the depth confirmation column extending into the patient's implant is consistent with the set angle and length of the implantation site.

[0014] Preferably, the guide plate is integrally formed by 3D printing.

[0015] Preferably, the guide plate is modeled from the scanning model of the patient's teeth by the intraoral scanner, and the shape of the depth confirmation post is set according to the set angle and distance of implant placement.

[0016] The beneficial effects of this utility model are:

[0017] This invention features a groove at the bottom of the support, which secures the guide plate to the patient's dental arch, ensuring precise and stable positioning and providing guidance stability. An observation window, an arc-shaped opening, allows visual inspection of the natural crown to confirm complete fit and proper installation. A depth confirmation post confirms the implant depth and angle, ensuring the implant hole matches the pre-set parameters. The guide plate is integrally 3D printed, minimizing assembly errors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a top view of the present invention.

[0020] Figure 3 This is a schematic diagram of the installation structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the patient's installation position according to the present invention.

[0022] In the diagram: 1-Support, 2-Positioning observation window, 3-Depth confirmation column, 4-Implant placement site. Detailed Implementation

[0023] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example 1

[0024] like Figures 1-4 As shown, an implant depth guide includes a guide plate that can be fixed to the patient's dentition.

[0025] Reference Figure 1 , Figure 2 , Figure 3 The guide plate includes a support 1, an observation window 2, and a depth confirmation post 3. The bottom of the support 1 has a groove that matches the shape of the patient's dentition. The observation window 2 is located at the top of the support 1, allowing medical staff to observe the patient's teeth and confirm the installation of the guide plate. The depth confirmation post 3 is located on the side of the support 1 and can extend into the implant placement site.

[0026] In this embodiment, the rest 1 is arc-shaped, conforming to the patient's dental arch curve. At the bottom of the rest 1, grooves corresponding to the patient's crown and gingival morphology are provided. These grooves allow for precise positioning and ensure the stability of the guide plate, preventing displacement. The outer side of the rest 1 is buccal, and the inner side is lingual. The height of the buccal and lingual walls is slightly higher than the occlusal surface of the crown, forming a wrap-around fit structure to ensure the lateral stability of the rest 1.

[0027] The placement observation window 2 is located at the top of the support 1. The shape of the placement observation window 2 is an arc-shaped notch along the top of the support 1, with the center of the notch corresponding to two stable teeth. The teeth exposed through the placement observation window 2 are not adjacent to the implant placement site 4. In this embodiment, the length of the notch in the placement observation window 2 spans the labial and occlusal surfaces of the two tooth crowns, and the edges of the notch are smoothly rounded without sharp angles. After the guide plate is installed, the occlusal and buccal positions of the tooth crowns can be directly observed through the placement observation window 2 to confirm whether the guide plate is fully fitted. Furthermore, during the operation, a mouth mirror or light source can be used for further illumination to ensure that the guide plate does not tilt or lift.

[0028] The depth confirmation column 3 is a solid cylinder. The depth confirmation column 3 can be inserted into the implantation site 4 of the patient's implant. The top of the depth confirmation column 3 is connected to the side wall of the support 1. The central axis of the depth confirmation column 3 is completely coincident with the preset implantation axis.

[0029] The top of the depth confirmation column 3 is connected to the side wall of the support 1 and extends to the side. It turns at the top of the implantation site 4 and extends towards the implantation site 4. After entering the implantation site 4, the angle of the depth confirmation column 3 is the same as the angle of the implant to be implanted by the patient.

[0030] After drilling reaches the preset depth, the depth confirmation post 3 can be inserted into the formed implantation site 4. When the guide plate can be installed normally and the depth confirmation post 3 does not shift, it can ensure that the angle and depth of the implantation site 4 meet the expected requirements.

[0031] Reference Figure 4For patients requiring implantation, a CT scan is first used to obtain information about the patient's jawbone, and an intraoral scanner is used to extract data about the patient's dentition and soft tissues. The implantation site, namely implantation site 4, is then determined using software design. A detailed guide structure is generated based on the acquired model data to ensure that the support 1 can be fixed to the patient's dentition, the placement observation window 2 can expose the pre-set patient teeth, and the depth confirmation post 3's length, tilt angle, and positional relationship are consistent with the various structures of implantation site 4.

[0032] In this embodiment, the guide plate can verify whether the implant placement on the patient's dentition is consistent with the designed placement, and can ensure that the implantation point can be placed in a reasonable position.

[0033] The surgical guide is 3D printed in one piece, eliminating unnecessary parts in the patient's mouth and simplifying the clinical procedure. The guide requires no post-assembly, reducing errors during assembly. After insertion, the grooves in the support 1 fit snugly against adjacent teeth, and the positioning observation window 2 allows direct visualization of the patient's teeth. Once the implant placement site 4 is established, it can be confirmed using the depth confirmation post 3, allowing for timely adjustments to prevent the implanted tooth from failing to meet the set angle.

[0034] In this embodiment, a fixed-depth confirmation column is used to verify the patient's implantation site. In some implantation cases, it is not necessary to confirm the site through flapping.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A planting depth verification guide plate, comprising: Guide plate, The guide plate can be fixed to the patient's teeth. Its features are: The guide plate includes a support, an observation window for positioning, and a depth confirmation post. The bottom of the support is provided with a groove that is the same shape as the patient's dentition. The positioning observation window is located on the top of the support, allowing the patient's teeth to be observed through the positioning observation window to confirm the installation status of the guide plate; The depth confirmation post is located on the side of the support and extends into the patient's implantation site.

2. The planting depth verification guide plate according to claim 1, characterized in that: The placement observation window is an arc-shaped notch, through which the tops of multiple patient teeth can be exposed.

3. The planting depth verification guide plate according to claim 2, characterized in that: Two of the patient's teeth are visible through the placement observation window, and the visible teeth are not adjacent to the implant placement site.

4. The planting depth verification guide plate according to claim 1, characterized in that: The shape of the depth confirmation column inserted into the patient's implant is consistent with the set angle and length of the implantation site.

5. The planting depth verification guide plate according to claim 1, characterized in that: The guide plate is 3D printed in one piece.

6. The planting depth verification guide plate according to claim 5, characterized in that: The guide plate is modeled from the scanning model of the patient's teeth by the intraoral scanner, and the shape of the depth confirmation post is set according to the set angle and distance of implant placement.