Combined design method of bone increment and implant denture and manufacturing method of bone increment model

Abstract

The invention relates to the field of oral implant same-period bone increment medicine, and discloses a combined design method of bone increment and implant denture and a manufacturing method of a bone increment model. A hard tissue model and an oral cavity model do not need to be subjected to data fusion, and only the medical image, the hard tissue model and the oral cavity model need to be subjected to registration and superposition, so that the restoration and the implant can be designed on the oral cavity model, the bone increment is designed on the hard tissue model. Not only is data operation simpler, but also compared with fused data, a prosthesis and an implant designed according to an original oral cavity model are higher in accuracy, and during design, the prosthesis, the implant and bone increment are adjusted by taking an original medical image capable of completely showing soft and hard tissues of an oral cavity and a jaw bone as a reference; the individual condition of the patient can be better adapted from the global perspective, the design suitability is ensured, and a good foundation is laid for the success of a subsequent implant repair operation.

Description

technical field [0001] The invention relates to the medical field of bone augmentation at the same time as oral implantation, in particular to a joint design method of bone augmentation and implant denture and a manufacturing method of a bone augmentation model. Background technique [0002] Defective dentition is a common problem in the field of oral restoration. It will cause the patient's masticatory function to be limited, which will affect the patient's facial appearance, and the dentition in a special area will also affect the patient's pronunciation. Long-term dentition loss will lead to problems such as tilting of the remaining teeth on the gap side, elongation of the opposing teeth, food retention, etc., and then cause caries or (and) periodontal lesions of the remaining teeth / rows, and may also cause temporomandibular joint lesions , which in turn affects the entire oral and jaw system. Therefore, patients with dentition defects should be treated in time. [0003...

AI Technical Summary

Problems solved by technology

This will bring about two problems. First, the original medical images obtained by CT or CBCT are usually in the form of data such as DICOM format data, which contain information that can show different gray levels of various tissues. Intraoral three-dimensional scanning or scanning Plaster model data is usually in the form of STL format data for easy design. When converting DICOM format data into STL format data, it is usually converted by extracting part of the information, such as hard tissue data such as jaws and dentition, so it will be lost. A large amount of original data information, and these original data have important reference significance in implant planning and bone augmentation design; second, generally speaking, for surface areas such as dentition, the accuracy of CT data is not as good as intraoral 3D scanning Or scan the plaster model data, and also perform data conversion, and directly fuse the converted CT data with the intraoral 3D scan or scan plaster model data by deleting the overlapping parts, which may introduce the error of the CT data into the fused data. Inaccurate restoration design

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