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Journal of Technologic Dentistry 2015; 37(4): 191-197
Published online December 30, 2015
https://doi.org/10.14347/kadt.2015.37.4.191
© Korean Academy of Dental Technology
구강 내 스캐너와 구강 외 스캐너를 사용하여 취득된 스캔 데이터 정확도 비교
이재준;정일도;김총명;박진영;김지환;김웅철;
고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;
Comparison of accuracy of digital data obtained by intra-oral scanner and extra-oral scanner
Lee, Jae-Jun;Jeong, Il-Do;Kim, Chong-Myung;Park, Jin-Young;Kim, Ji-Hwan;Kim, Woong-Chul;
Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;
Purpose: The purpose of this study was to compare the accuracy of the scan data acquired by the extra-oral and intra-oral scanner. Methods: The maxillary right first molar was made of polymethyl methacrylate(PMMA) specimen. This PMMA specimen was scanned with a engineering scanner and intra-oral scanner. Meanwhile, extra-oral scanner scanned stone die duplicated from PMMA master die. Trueness and precision of scan datas was measured by 3-dimensinal inspection. Independent t-test was conduct to analysis the significant difference(a=0.05). Results: In the trueness analysis, mean of discrepancies were 13.82um for intra oral scanner and 16.84 um for extra-oral scanner. In the precision analysis, mean of discrepancies were 11.72 for inta-oral scanner and 9.2 for extra-oral scanner. Both trueness and precision showed a statistically significant difference (Table 1, p<0.05). Conclusion: Intra-oral scanner can show higher trueness than extra-oral scanner, it has lower precision.
Keywords: Intra-oral scanner,Extra-oral scanner,Accuracy,
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Journal of Technologic Dentistry 2015; 37(4): 191-197
Published online December 30, 2015 https://doi.org/10.14347/kadt.2015.37.4.191
Copyright © Korean Academy of Dental Technology.
구강 내 스캐너와 구강 외 스캐너를 사용하여 취득된 스캔 데이터 정확도 비교
이재준;정일도;김총명;박진영;김지환;김웅철;
고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;고려대학교 대학원 보건과학과 치의기공전공;
Comparison of accuracy of digital data obtained by intra-oral scanner and extra-oral scanner
Lee, Jae-Jun;Jeong, Il-Do;Kim, Chong-Myung;Park, Jin-Young;Kim, Ji-Hwan;Kim, Woong-Chul;
Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;Department of Dental Laboratory Science and Engineering, College of Health Science, Korea University;
Abstract
Purpose: The purpose of this study was to compare the accuracy of the scan data acquired by the extra-oral and intra-oral scanner. Methods: The maxillary right first molar was made of polymethyl methacrylate(PMMA) specimen. This PMMA specimen was scanned with a engineering scanner and intra-oral scanner. Meanwhile, extra-oral scanner scanned stone die duplicated from PMMA master die. Trueness and precision of scan datas was measured by 3-dimensinal inspection. Independent t-test was conduct to analysis the significant difference(a=0.05). Results: In the trueness analysis, mean of discrepancies were 13.82um for intra oral scanner and 16.84 um for extra-oral scanner. In the precision analysis, mean of discrepancies were 11.72 for inta-oral scanner and 9.2 for extra-oral scanner. Both trueness and precision showed a statistically significant difference (Table 1, p<0.05). Conclusion: Intra-oral scanner can show higher trueness than extra-oral scanner, it has lower precision.
Keywords: Intra-oral scanner,Extra-oral scanner,Accuracy,
