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Tooth arrangement method for manufacturing complete dentures

A complete denture and tooth technology, applied in dentistry, dentures, dental prosthesis, etc., can solve the problems of complete denture design deviation and insufficient degree of personalization, and achieve the effect of meeting clinical needs

Active Publication Date: 2016-03-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are two main commercial softwares that support full denture CAD, one is “DentalSystem” developed by Danish company 3Shape, and the other is “DWOSFullDentures” developed by Canadian company DentalWings. The former uses the method of adjusting the overall dentition to obtain complete denture The artificial dentition is not personalized enough. The latter adopts the arrangement of scattered teeth to design the dentition, but it mainly reflects the design principles of complete teeth of Europeans and Americans, and there is a certain deviation from the design requirements of Asian complete dentures.

Method used

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  • Tooth arrangement method for manufacturing complete dentures
  • Tooth arrangement method for manufacturing complete dentures
  • Tooth arrangement method for manufacturing complete dentures

Examples

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Embodiment

[0085] The tooth arrangement method for making a complete denture of this embodiment includes the following steps:

[0086] 1. The establishment of a three-dimensional database based on parametric complete denture artificial teeth. This step includes: extraction of tooth feature information and marking of tooth feature points.

[0087] (1) Extraction of artificial standard tooth feature information

[0088] Such as Figure 1a with Figure 1b As shown, a set of artificial teeth is composed of 28 standard teeth. The shapes of teeth in different positions are different, and each tooth is very irregular. To arrange teeth reasonably, we must first obtain the characteristic information of each tooth. The invention inputs the three-dimensional model of the standard tooth, selects the characteristic information on each tooth by interactive picking, and establishes the local coordinate system of the tooth, so as to control the posture and position of the local coordinate system. The feature...

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Abstract

The invention relates to a tooth arrangement method for manufacturing complete dentures, and belongs to the technical field of manufacturing of dental prostheses. The tooth arrangement method for manufacturing the complete dentures comprises the steps that 1, a three-dimensional database of tooth characteristics of standard teeth is established; 2, oral cavity characteristic information of a patient is extracted; 3, tooth arrangement is conducted. According to the tooth arrangement method for manufacturing the complete dentures, a mutual constraint relationship between the oral cavity and artificial teeth is established, and therefore automatic tooth arrangement is achieved; dentitions according with the oral cavity characteristics of different patients are obtained, and the arranged dentitions can be appropriately adjusted according to patient needs so as to accord with the sex, age and the like of the patient; meanwhile, the diagnosis and treatment situations of the patient can be tracked and recorded, taking for use and updating can be achieved at any time, and the clinical needs of the complete dentures can be effectively met.

Description

Technical field [0001] The invention relates to a tooth arrangement method for manufacturing a complete denture, belonging to the technical field of dental prosthesis manufacturing. Background technique [0002] Loss of dentition is a common disease of the oral cavity, which occurs mostly in the elderly. Among them, patients with edentulous jaws account for a higher proportion. According to the "Third National Oral Health Epidemiological Survey Report", 46,830 people in the 65-74 age group were examined Among humans, edentulous patients account for about 6.82%. As our country enters an aging society, edentulous patients will continue to grow. Among the current restoration methods for edentulous patients, full denture restoration is the most common and main method. [0003] In the process of making a complete denture, obtaining artificial dentition that meets the characteristics of the patient’s oral cavity is one of the key steps for the success of the restoration. A good artific...

Claims

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Application Information

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IPC IPC(8): A61C13/08
CPCA61C13/0004A61C13/0006A61C13/08
Inventor 戴宁孙玉春范骐磊王勇余小灵陈虎崔海华程筱胜
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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