Method for reducing formation of residual binder in bonding retention planting restoration process

Abstract

The invention discloses a method for reducing formation of residual binder (residual excess cement) in a bonding retention planting restoration process. According to the method, a CAD system is adopted to design a personalized abutment and a full-crown prosthesis, meanwhile, a pre-bonded abutment is obtained through digital back-cutting, the personalized abutment does not need to be repeatedly scanned, the steps can be simplified, and the precision can be improved. According to the pre-bonded abutment which is accurately manufactured in a digitalized mode, a 30-100-micrometer pre-bonded gap (every 10 micrometers) can be reserved in a precise gradient mode according to the performance of the binder, the precise binder volume needed by final full-crown bonding can be adjusted, and therefore balance of bonding retention and bonding agent overflowing is achieved; and after the overflowing binder is removed through in-vitro pre-bonding, the whole crown is quickly positioned on the individualized abutment in a mouth until preliminary hardening is realized, and excessive cement around the crown is removed, so that excessive cement residue is avoided.

Description

technical field [0001] The invention relates to a method for reducing the formation of residual adhesive in the process of adhesive-retained implant restoration. Background technique [0002] Implant-supported fixed restorations are mainly through two retention methods: adhesive retention or bolt retention. Although bolt retention is more favorable for the health around the implant and is more respected, due to the limitation of the long axis of the remaining alveolar bone and the direction of the implant, Especially in the aesthetic area of ​​anterior teeth, cement-retained implant restorations still cannot be completely replaced. In addition, the adhesive-retained restoration has the advantages of maintaining the integrity of the tooth shape, avoiding the penetration of the occlusal surface, having strong aesthetics, and reducing the time of chairside operation. Therefore, the adhesive-retained implant restoration still has a wide range of clinical applications. [0003] ...

AI Technical Summary

Problems solved by technology

Pre-bonding treatment can effectively reduce the formation of REC. The current pre-bonding treatment method is likely to cause pre-bonding abutment defects and air bubbles. At the same time, it is difficult to control the pre-bonding gap, and the amount of cement is easily insufficient or overflows, which reduces the pre-bonding process. The effect of treatment

However, the two-step digital preparation of the pre-bonded abutment needs to re-scan the personalized abutment and then cut it, which is cumbersome and reduces the accuracy of the pre-bonded gap.

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