| Direct 3-D morphological measurements of silicone rubber impression using micro-focus X-ray CT. | |
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MedLine Citation:
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PMID: 20379015 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Three-dimensional computer models of dental arches play a significant role in prosthetic dentistry. The microfocus X-ray CT scanner has the advantage of capturing precise 3D shapes of deep fossa, and we propose a new method of measuring the three-dimensional morphology of a dental impression directly, which will eliminate the conversion process to dental casts. Measurement precision and accuracy were evaluated using a standard gage comprised of steel balls which simulate the dental arch. Measurement accuracy, standard deviation of distance distribution of superimposed models, was determined as +/-0.050 mm in comparison with a CAD model. Impressions and casts of an actual dental arch were scanned by microfocus X-ray CT and three-dimensional models were compared. The impression model had finer morphology, especially around the cervical margins of teeth. Within the limitations of the current study, direct three-dimensional impression modeling was successfully demonstrated using microfocus X-ray CT. |
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Authors:
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Masayuki Kamegawa; Masayuki Nakamura; Yu Fukui; Sadami Tsutsumi; Masaki Hojo |
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Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Dental materials journal Volume: 29 ISSN: 0287-4547 ISO Abbreviation: Dent Mater J Publication Date: 2010 Jan |
Date Detail:
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Created Date: 2010-04-09 Completed Date: 2010-05-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8309299 Medline TA: Dent Mater J Country: Japan |
Other Details:
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Languages: eng Pagination: 68-74 Citation Subset: D |
Affiliation:
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Department of Medical Simulation Engineering, Research Center for Nano Medical Engineering, Institute for Frontier Medical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan. kamegawa@shimadzu.co.jp |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Computer Simulation Computer-Aided Design Dental Arch / anatomy & histology Dental Impression Materials* Dental Impression Technique* Dental Models Humans Image Processing, Computer-Assisted Imaging, Three-Dimensional / methods* Jaw Relation Record Polyvinyls Silicone Elastomers* Siloxanes Tomography, X-Ray Computed / methods* |
| Chemical | |
Reg. No./Substance:
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0/Dental Impression Materials; 0/Polyvinyls; 0/Silicone Elastomers; 0/Siloxanes; 0/vinyl polysiloxane |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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