Journal
BIOMED RESEARCH INTERNATIONAL
Volume 2015, Issue -, Pages -Publisher
HINDAWI LTD
DOI: 10.1155/2015/453968
Keywords
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Funding
- National Natural Science Foundation of China [81271181]
- National High Technology Research and Development Program(863 Program) of China [2013AA040801]
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Objective. To quantitatively evaluate the tissue surface adaption of a maxillary complete denture wax pattern produced by CAD and 3DP. Methods. A standard edentulous maxilla plaster cast model was used, for which a wax pattern of complete denture was designed using CAD software developed in our previous study and printed using a 3D wax printer, while another wax pattern was manufactured by the traditional manual method. The cast model and the two wax patterns were scanned in the 3D scanner as DataModel, DataWaxRP, and DataWaxManual. After setting each wax pattern on the plaster cast, the whole model was scanned for registration. After registration, the deviations of tissue surface between DataModel and DataWaxRP and between DataModel and DataWaxManual were measured. The data was analyzed by paired t-test. Results. For both wax patterns produced by the CAD&RP method and the manual method, scanning data of tissue surface and cast surface showed a good fit in themajority. No statistically significant (P > 0.05) difference was observed between the CAD&RP method and the manual method. Conclusions. Wax pattern of maxillary complete denture produced by the CAD&3DP method is comparable with traditional manual method in the adaption to the edentulous cast model.
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