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KMID : 0362120130350010037
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Journal of Technologic Dentistry
2013 Volume.35 No. 1 p.37 ~ p.42
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Evaluation on the repeatability of dental white light scanner-based digital impression
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Jeon Jin-Hun
Lee Gyeong-Tak
Kim Hae-Young
Kim Ji-Hwan
Kim Woong-Chul
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Abstract
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Purpose: The purpose of this study was to evaluate the repeatability of dental white light scanner.
Methods: The impression(Zerosil, Dreve, Germany) were digitized in white light scanner(Identica, Medit, Korea) to create 3-dimensional surface-models. The distribution of the discrepancies between the number of points in the corresponding CRM models and the point clouds in the others were measured by a matching-software(Power- Inspect 2012, Delcam Plc, UK). The discriptive statistics were used for statistical analysis(SPSS 20.0).
Results: The measurement of repeatablity showed very good reliability. The mean(SD) discrepancy value on the white light scanner digital models was 8.7(0.67) , based on SD and absolute mean values.
Conclusion: These in vitro studies showed that repeatability of dental white light scanner is high reliability. These results can be confirmed in further clinical studies.
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KEYWORD
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dental white light scanner, repeatability of dental scanner, digital impression, CRM models, point clouds
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