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Digital occlusal adjustment guide and manufacturing method thereof

A manufacturing method and technology of occlusal splints, applied in the field of tooth restoration, can solve problems such as inability to realize entity and digitization, achieve good restoration effects, reduce clinical operation time, and reduce irregularities and inaccuracies

Active Publication Date: 2021-08-10
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: the existing technology cannot realize the connection between the entity and the digitization, and the existing technology cannot accurately guide the occlusal adjustment, etc.

Method used

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  • Digital occlusal adjustment guide and manufacturing method thereof
  • Digital occlusal adjustment guide and manufacturing method thereof
  • Digital occlusal adjustment guide and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for manufacturing a digital occlusal adjustment guide plate includes the following steps:

[0047] Step S1: Intraoral scan to obtain dentition data, including upper and lower dentition data and partial gingival morphology, and obtain a preoperative model based on dentition data;

[0048] Step S2: Record the positional relationship of the maxillary dentition relative to the maxillary bone through the facebow, fix the occlusal plate recording the positional relationship on the transfer table through the universal joint, and fix the maxillary dentition model in a fully adjustable occlusion through the transfer table On the frame, the reference plane of the facebow is the same as the reference plane of the fully adjustable articulator; the mandibular dentition model is reset and fixed on the articulator by using the central position relationship of the prepared upper and lower dentition; Extension and lateral occlusal records Adjust the forward extension and latera...

Embodiment 2

[0063] The difference between this embodiment and Embodiment 1 is that in the step S1, a super-anhydrite model is cast after taking a traditional impression, and the scanned model is used as a preoperative model.

Embodiment 3

[0065] The difference between this embodiment and Embodiment 1 is that the implementation of step S7 is different:

[0066] Generate a 4mm thick occlusal plate based on the model after occlusal adjustment, and subtract the model before occlusal adjustment by Boolean operation to generate the prototype of the guide plate; or select a range on the model before occlusal adjustment, use the offset tool to offset 2mm, and Flip the normal direction, select the occlusal adjustment range on the occlusion-adjusted model, use the offset tool to offset 4mm, merge the offset patches and fill the holes to complete the occlusal adjustment guide plate prototype.

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Abstract

The invention discloses a digital occlusal adjustment guide plate and a manufacturing method thereof, which solves technical problems such as inability to accurately guide occlusal adjustment in the prior art. The invention includes: obtaining dentition data by intraoral scanning or model scanning; transferring the relationship between the dentition and the maxilla , and match the existing dentition data with this relationship; call the virtual articulator, and adjust it according to the parameters obtained on the physical articulator; perform virtual tooth arrangement on the mucosa of the edentulous area, and export it after merging with the model; As a working model, perform virtual adjustment and export according to the simulated motion results of the articulator; generate the first and second occlusal plates with the model of natural teeth before occlusal adjustment and model after occlusal adjustment, and save them as the same coordinate system; extract the first occlusal plate The inner surface is merged with the outer surface of the second occlusal plate; the occlusal adjustment guide plate data is obtained according to the diameter of the working end of the bur; the 3D printed guide plate has the advantages of precise occlusal adjustment guidance and good repair effect.

Description

technical field [0001] The invention relates to the technical field of tooth restoration, in particular to a digital occlusal adjustment guide plate and a manufacturing method thereof. Background technique [0002] In general fixed restoration, removable partial denture restoration and implant restoration, it is often necessary to adjust the opposing dentition when the restoration space is insufficient, especially when the Spee curve and Wilson curve of the opposing jaw are abnormal, the occlusal adjustment must be performed first to ensure There is no early contact and occlusal interference after the restoration is put in. Therefore, occlusal adjustment is a "target repair space"-oriented clinical operation, and since this space can be determined before repair, the amount of occlusal adjustment can also be quantified before surgery. In most cases, the clinician chooses to adjust the prosthesis or the opposing teeth after the prosthesis is put in, which will increase the ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C8/00A61C19/05B29C64/393B33Y50/02G06F30/20
CPCA61C8/009A61C19/05B29L2031/7536B33Y50/02B29C64/393G06F30/20
Inventor 于海洋解晨阳方婷露贺锦秀
Owner SICHUAN UNIV
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