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A kind of prefabrication method of temporary prosthesis for dental implant surgery

A prosthesis and dental implant technology, applied in the field of dental implant medical devices, can solve problems such as the incongruity of the bottom crown and achieve the effect of protecting the gums

Active Publication Date: 2019-01-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some scholars use a guide plate to position the implant before operation, install a permanent abutment and a zirconia bottom crown during the operation, take an impression of the bottom crown after the operation, and make a temporary restoration, but the original bottom crown is not coordinated after the position of the gingival margin changes , especially premolars and anterior esthetic areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for making a temporary restoration for dental implant surgery, comprising the following steps:

[0021] 1) Take the negative mold of the maxillary dentition and the negative mold of the mandibular dentition; record the occlusal relationship between the upper and lower teeth; pour the negative of the patient’s oral dentition into a plaster model; The plaster model forms a plaster working model according to the alignment of the occlusal relationship; the working model represents the real alignment relationship between the teeth and gums in the patient's mouth; the patient takes a CBCT to obtain the CT data of the patient's jaw;

[0022] 2) Scan the plaster working model to obtain a digital plaster working model, and register the digital plaster model with the CT data of the jaw to form a digital working model after registration (such as aligning the teeth of the digital plaster working model with the teeth on the CT data) Registration);

[0023] 3) On the regist...

Embodiment 2

[0030]A method of using a temporary restoration: the temporary restoration is made of high-strength materials (such as zirconia, all-ceramic, or metal, etc.), and after the dental implant is completed and the gums heal, the temporary restoration is directly ground in the mouth to become The abutment of the final restoration, and then the final restoration is cemented on the ground-up abutment of the temporary restoration to complete the restoration. In this way, there is no need to remove the temporary restoration, and there is no secondary damage to the gums. The final restoration can adopt the final restoration of the state of the art.

Embodiment 3

[0032] A method of using a temporary restoration: using the prefabrication method of the temporary restoration for dental implant surgery to make the final restoration, the gingival morphology of the final restoration is exactly the same as that of the temporary restoration.

[0033] This method is suitable for cases where temporary restorations need to be removed. When the measured value of implant stability is less than 70, it is considered that the stability of the implant is not enough to support the temporary restoration, and the temporary restoration is modified into a personalized implant healing cap.

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PUM

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Abstract

The invention provides a prefabrication method of a temporary prosthesis for a dental implant surgery. The prefabrication method comprises the following steps: manufacturing a gypsum working model; obtaining jaw CT (Computed Tomography) data of a patient; matching the gypsum working model with the jaw CT data; designing the temporary prosthesis and determining an implanting position and an implant specification; manufacturing an implanting guide plate used in the dental implant surgery; controlling an accurate position for implanting the implant. A temporary prosthesis method is adopted and the prefabrication method of the temporary prosthesis for the dental implant surgery is adopted; the shape of a final prosthesis is completely consistent to the shape of a gum of the temporary prosthesis. The temporary prosthesis method is utilized and the temporary prosthesis is directly polished in a mouth to form a base platform of a final prosthesis. The prefabrication method provided by the invention has the advantages that a model does not need to be taken when an implant wound is opened and the gum can be protected to the greatest extent.

Description

technical field [0001] The invention relates to the field of dental implant medical devices in the Department of Stomatology, in particular to a method for making a temporary restoration before dental implant surgery to induce gingival morphology and reduce gingival damage. Background technique [0002] The continuous development of CAD / CAM technology has run through the entire dental implant treatment process, including preoperative diagnosis and design, and crown and bridge fabrication during restoration; this technology is fast, visualized, and accurate. The theory of dental implant technology has developed rapidly in the past few years, from the initial bone healing that cannot be disturbed to the implant fretting within a certain range does not affect the bone healing of the implant, from subgingival healing to transgingival healing to immediate implantation in recent years. repair. [0003] Restoration after implantation in the conventional plan generally needs to wai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/107A61C8/00
CPCA61C8/005A61C13/0001A61C13/0004
Inventor 徐俊华
Owner ZHEJIANG UNIV
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