Additive and subtractive compound processing and molding method of individualized dental implanting abutment

Abstract

The invention relates to the field of additive manufacturing, in particular relates to additive manufacturing dental implanting field and discloses an additive and subtractive compound processing andmolding method of an individualized dental implanting abutment. The additive and subtractive compound processing and molding method of the individualized dental implanting abutment comprises the following steps: designing an individualized implant abutment: designing the individualized implant abutment according to conditions of illness cases; carrying out data processing: designing chipping allowance for a part needing to be subjected to cutting processing on the individualized implant abutment; carrying out slicing treatment needed by the additive manufacturing on the abutment and planning acutting cutter path for carrying out the cutting processing on the abutment; carrying out the additive manufacturing: processing an abutment semi-finished product through the additive manufacturing;carrying out subtractive manufacturing: carrying out cutting processing on the abutment semi-finished product to manufacture the individualized implant abutment. The processing and molding method provided by the invention combines advantages of additive manufacturing and subtractive manufacturing manners and high efficiency and high precision of the individualized implant abutment are realized; the additive and subtractive compound processing and molding method is applicable to a cobalt-chromium alloy, titanium, a titanium alloy and the like, and a selectable material range is wider.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to the field of additive manufacturing of dental implants, and specifically relates to a composite processing and molding method of adding and subtracting materials for a personalized dental implant abutment. Background technique [0002] Dental implant surgery is currently the most effective way to restore tooth loss. The implant abutment is the structural part of the dental implant exposed to the oral cavity through the gums, and the abutment is the connecting part between the implant and the superstructure. The personalized implant abutment is customized according to the shape of the patient's gingiva, and has a good anatomical shape and corrected angle; the abutment can match the mechanical structure of the implant to the greatest extent, and is suitable for the anatomical shape of the gingiva around the implant. It is easy to manufacture and has high precision. It brings g...

AI Technical Summary

Problems solved by technology

[0007] However, when laser selective melting is used to process metal materials, due to the forming mechanism of sudden heat and sudden cooling, the thermal stress of the planting bracket is large during processing, and it is easy to deform; after adding support to the processed planting bracket for 3D printing, the post-processing of the parts is more time-consuming. , and it is easy to affect the accuracy of the interface with the implant, so it is very difficult to directly process the personalized implant abutment by laser selective melting

Due to the fact that the parts that are currently melted by laser selection usually do not require high precision, and there are burrs and other uneven structures on the edge of the part after one-time laser scanning, which is not allowed in dental implant abutments

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