A design and manufacture method of complete denture based on cad/rp technology

Abstract

The invention discloses a method for manufacturing a neutral zone complete denture based on CAD / RP (Computer Aided Design / Rapid Prototyping, computer-aided design and rapid prototyping) technology. The method comprises the following steps: establishing a three-dimensional graphic database of complete dentures and artificial teeth based on parametric positioning; collecting data on the upper and lower edentulous jaws and the jaw embankment in the neutral zone based on the three-dimensional laser scanning technology with spatial position relationships; Based on reverse engineering software, design the complete denture artificial dentition that conforms to the theory of neutral zone and complete denture balanced tooth arrangement; based on reverse engineering software, design the gingiva and base that conform to the theory of neutral zone of complete denture and aesthetic principles; based on CAD / RP technology full denture box design and processing, manual tooth insertion and glue to complete the complete denture restoration. The invention pioneered the idea of ​​"two-step method". The manual teeth arrangement and wax pattern production with the highest technical content and the most complicated operation in traditional production are completed by computer and rapid prototyping technology. The second step of the "step method" can complete the entire production of complete dentures, which greatly simplifies the complicated procedures of traditional handcrafts, improves the efficiency and accuracy of restorations, and realizes the design and production process of complete dentures from manual to manual. Digital transformation.

Description

technical field [0001] The invention relates to a production method of a neutral zone complete denture based on CAD / RP (Computer Aided Design / Rapid Prototyping, computer-aided design and rapid prototyping) technology. Background technique [0002] With the aging of my country's population, patients with complete dentition loss, that is, edentulous jaws, are increasing year by year. According to the second national oral health epidemic sampling survey data, edentulous patients aged 65-73 in urban and rural areas in my country account for 10.51%. There are about 15 million edentulous patients in all age groups. Various types of complete dentures are currently the most important restoration method for edentulous patients. The neutral zone total denture is the ideal state of the complete denture, and the complete denture made with the neutral zone theory can meet the individual requirements of the soft tissues in the oral cavity of edentulous patients, such as the masticatory mu...

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the gaps in the prior art, the purpose of the present invention is to propose a high-efficiency, low-workload and suitable for clinical application of the neutral zone complete denture design and production method to produce accurate, comfortable and durable complete denture restoration In order to solve the problems of cumbersome steps, complex operation and long production cycle in the traditional manual design and production process, it will promote the wide application of neutral zone complete dentures in domestic clinical oral restoration, and bring good news to edentulous patients

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