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Rapid prototyping technology has been widely used in the medical field , it is a set of rapid prototyping technology , CT scan, medical image processing technology , CAD technology in one of the new disciplines . With the development of three-dimensional reconstruction of CT image processing technology , the 3D data model of the complex shape of human organs can be thus obtained . At the same time , along with the rapid development of rapid prototyping technology , based on these three-dimensional data model quickly create extremely high precision , complex shape prototype . Traditional medical diagnosis , surgical planning , prosthesis production , along with the rapid development and application of rapid prototyping technology , in fact, greater value and development potential will improve . This article is based on the teeth model image processing and rapid prototyping technology , the tooth spiral CT image as the sample data , the CT image preprocessing , segmentation and contour extraction , provides a good foundation for the rapid reconstruction of the three-dimensional model . This paper involved, working mainly as follows : ( 1) Medical spiral CT data based on the application of CT image processing and three-dimensional reconstruction software Mimics for processing the raw data , the patient 's dental cast model of three-dimensional data , then these data STL format file storage . ( 2 ) proposed a new algorithm (NURBS curves and surfaces algorithm) to complete the model surface modeling and patch model noise removal , image editing software Geomagic accordingly , fill holes , fill surface , smooth and other treatment , the best The three-dimensional model . (3) After the optimization model data input to a rapid prototyping machine recognizable platform for solid model reconstruction . ( 4 ) to analyze and propose appropriate solutions to avoid or reduce such errors appear to provide a basis for the types of errors in rapid prototyping . This article rapid prototyping technology into the dental model production , conducive to the doctor observed and presented the best treatment options for patients with pathological teeth , reduced suffering for patients heal physicians treat patients , but also to provide a convenient , with strong practical value.
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