| Summary: | 碩士 === 國立臺灣科技大學 === 色彩與照明科技研究所 === 106 === The mouth has been one of the important organs for people all the time. Currently, people live in a good condition with so many choices for food; therefore, most people who are going to enter the elder life need to undergo an operation for dental implant or denture. According to the sample survey conducted by Tainan City Government Health Bureau, the elderly people who are aged over 65 years old without any teeth account for 16.25%; moreover, this problem will increase as the trend of aging population. Thus, how to choose a suitable tooth for patients is based on the doctor’s experience and expertise; however, the whole process needs a lot of time and costs.
Since the arch of human being is mostly moist, narrow, and dark, bulky 3D digital devices can’t be used. In this study, we develop a digital scanning device based on stereoscopy and reflector to take 3D pictures. By this way, we are able to acquire 3D information of patient’s full arch efficiently. Therefore, if we further integrate digital scanning with the 3D printing, we can reconstruct full-arch denture quickly. And it will save lots of time and ease the discomfort for patients.
According to the result, the coverage of reconstructed 3D for the whole arch is around 90%, and the accurate validation error is as small as 0.4mm in average. In order to verify whether our system is useful, we examine over and over again. As a result, we find out that it is approximately taking one day including scanning operation, digital denture reconstruction, printing dentures and adjustment of patients’ comfort. Compared with the traditional plaster cast dentures, which takes more than ten days to accomplish, digital full arch reconstruction is ten times faster than the traditional one.
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