Processing method for zirconia all-porcelain dentures

Abstract

The invention provides a processing method for zirconia all-porcelain dentures. The processing method comprises the following steps: S1, scanning; S2, processing; S3, crystallization; S4, applicationof porcelain; S5, try-in and adjustment; S6, finishing of porcelain; and S7, glazing. The processing method provided by the invention eliminate potential corrosion of non-noble metal and harm of non-noble metal to human beings; a zirconia material is used, the zirconia material has good biocompatibility, a beautiful natural color, stable physical and chemical properties, the properties of the zirconia material are close to the properties of teeth, and dental plaques hardly adhere onto the zirconia material; direct CAM abrasive machining is employed for a part of sintered zirconia materials toprepare dental restorations like a dental crown and a bridge pontic, and the dental restorations are fully sintered to obtain all-porcelain restorations with excellent mechanical properties, good adaptability and requirement-meeting aesthetic performance; and the processing method meets the requirements for high efficiency, high quality and economic performance, has high processing efficiency, greatly reduces time for oral treatment, significantly shortens the course of treatment and mitigates the pain of patients.

Description

technical field [0001] The invention relates to the technical field of artificial dental implants, in particular to a processing method for a zirconia all-ceramic denture. Background technique [0002] Tooth and dentition defect is a common clinical problem, and the best repair method to solve this problem is to carry out inlay or crown and bridge restoration. The machinable materials used in the oral cavity not only require good biocompatibility, but also require good machinability. In the most widely used porcelain-fused-to-metal restoration system, due to the existence of the metal base layer, although the strength is Guaranteed, but the color of the metal at the neck edge will show through, and there will be a "neck ring" problem that affects the appearance, and non-precious metals are potentially corrosive and harmful to the human body; even precious metals have the problem of allergic reactions in a small number of patients , and ceramics have incomparable advantages ...

AI Technical Summary

Problems solved by technology

The machinable materials used in the oral cavity not only require good biocompatibility, but also require good machinability. In the most widely used porcelain-fused-to-metal restoration system, due to the existence of the metal base layer, although the strength is Guaranteed, but the color of the metal at the neck edge will show through, and there will be a "neck ring" problem that affects the appearance, and non-precious metals are potentially corrosive and harmful to the human body; even precious metals have the problem of allergic reactions in a small number of patients , and ceramics have incomparable advantages in being used as oral artificial restorations due to their good biocompatibility, material properties close to teeth, beautiful and natural color, stable physical and chemical properties, not easy to adhere to plaque, and good biocompatibility. Among them, the mechanical properties of zirconia ceramics are particularly excellent

However, due to its high hardness after sintering, zirconia ceramics are difficult to grind and process, which is not conducive to its rapid production of highly personalized and precise oral restorations.

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