Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping

Rong-Fu Kuo, Shing Jye Chen, Dung-Yau Wang, Bo Cheng Lu, Zheng Han Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Rapid prototyping (RP) technology used in digital design of dental industry has been rapidly developed. Most users in dental industry have concerned accuracy of the dental model printed by an RP device in comparison to that of a conventional intraoral impression. Thus, the purpose of the study was to compare digital morphology of a subject’s teeth between a dental impression and a printed dental RP model of the same subject whose digital dental morphology was created. In this study, one subject’s entire oral teeth was impressed and casted; a plastic RP model was also produced after the subject’s teeth were scanned using an intraoral scanner (3Shape TRIOS) to produce a whole dental images in digits. In order to digitally compare morphological dimensions between the impression and RP models, each model’s shape and dimension were scanned using a reverse engineering based optical scanner in producing digital dental images in 3D, a STL based format; meanwhile, a quality control industrial software (ATOS GOM Inspect V7.5 SR1) was used to compare the STL format based digital images of each model. The preliminary findings of the study show that an increased diverse visual coloring based error distribution of the scanned images between the RP plastic and dental impression casting models was found as well as a maximum average morphological error (0.1409mm) over eleven selected spots. The maximum relative errors could be due to a precision of the devices used in general during scanning and printing of an intraoral scanner and RP device, respectively, in addition to the errors from hardware and software operated during image reconstruction. In the future, an increased sample size of comparisons among impaired morphology in teeth, various usages of intraoral scanners or optical based scanners, specifically, will gain a better statistical meaningful finding of the study.*

Original languageEnglish
Title of host publication5th International Conference on Biomedical Engineering in Vietnam
PublisherSpringer Verlag
Pages478-480
Number of pages3
Volume46
ISBN (Electronic)9783319117751
DOIs
Publication statusPublished - 2015
Event5th International Conference on the Development of Biomedical Engineering, 2014 - Ho Chi Minh City, Viet Nam
Duration: 2014 Jun 162014 Jun 18

Other

Other5th International Conference on the Development of Biomedical Engineering, 2014
CountryViet Nam
CityHo Chi Minh City
Period14-06-1614-06-18

Fingerprint

Rapid prototyping
Casting
Plastics
Reverse engineering
Coloring
Image reconstruction
Quality control
Printing
Industry
Scanning
Hardware

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Bioengineering

Cite this

Kuo, R-F., Chen, S. J., Wang, D-Y., Lu, B. C., & Huang, Z. H. (2015). Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping. In 5th International Conference on Biomedical Engineering in Vietnam (Vol. 46, pp. 478-480). Springer Verlag. https://doi.org/10.1007/978-3-319-11776-8_118
Kuo, Rong-Fu ; Chen, Shing Jye ; Wang, Dung-Yau ; Lu, Bo Cheng ; Huang, Zheng Han. / Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping. 5th International Conference on Biomedical Engineering in Vietnam. Vol. 46 Springer Verlag, 2015. pp. 478-480
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title = "Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping",
abstract = "Rapid prototyping (RP) technology used in digital design of dental industry has been rapidly developed. Most users in dental industry have concerned accuracy of the dental model printed by an RP device in comparison to that of a conventional intraoral impression. Thus, the purpose of the study was to compare digital morphology of a subject’s teeth between a dental impression and a printed dental RP model of the same subject whose digital dental morphology was created. In this study, one subject’s entire oral teeth was impressed and casted; a plastic RP model was also produced after the subject’s teeth were scanned using an intraoral scanner (3Shape TRIOS) to produce a whole dental images in digits. In order to digitally compare morphological dimensions between the impression and RP models, each model’s shape and dimension were scanned using a reverse engineering based optical scanner in producing digital dental images in 3D, a STL based format; meanwhile, a quality control industrial software (ATOS GOM Inspect V7.5 SR1) was used to compare the STL format based digital images of each model. The preliminary findings of the study show that an increased diverse visual coloring based error distribution of the scanned images between the RP plastic and dental impression casting models was found as well as a maximum average morphological error (0.1409mm) over eleven selected spots. The maximum relative errors could be due to a precision of the devices used in general during scanning and printing of an intraoral scanner and RP device, respectively, in addition to the errors from hardware and software operated during image reconstruction. In the future, an increased sample size of comparisons among impaired morphology in teeth, various usages of intraoral scanners or optical based scanners, specifically, will gain a better statistical meaningful finding of the study.*",
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Kuo, R-F, Chen, SJ, Wang, D-Y, Lu, BC & Huang, ZH 2015, Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping. in 5th International Conference on Biomedical Engineering in Vietnam. vol. 46, Springer Verlag, pp. 478-480, 5th International Conference on the Development of Biomedical Engineering, 2014, Ho Chi Minh City, Viet Nam, 14-06-16. https://doi.org/10.1007/978-3-319-11776-8_118

Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping. / Kuo, Rong-Fu; Chen, Shing Jye; Wang, Dung-Yau; Lu, Bo Cheng; Huang, Zheng Han.

5th International Conference on Biomedical Engineering in Vietnam. Vol. 46 Springer Verlag, 2015. p. 478-480.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - Rapid prototyping (RP) technology used in digital design of dental industry has been rapidly developed. Most users in dental industry have concerned accuracy of the dental model printed by an RP device in comparison to that of a conventional intraoral impression. Thus, the purpose of the study was to compare digital morphology of a subject’s teeth between a dental impression and a printed dental RP model of the same subject whose digital dental morphology was created. In this study, one subject’s entire oral teeth was impressed and casted; a plastic RP model was also produced after the subject’s teeth were scanned using an intraoral scanner (3Shape TRIOS) to produce a whole dental images in digits. In order to digitally compare morphological dimensions between the impression and RP models, each model’s shape and dimension were scanned using a reverse engineering based optical scanner in producing digital dental images in 3D, a STL based format; meanwhile, a quality control industrial software (ATOS GOM Inspect V7.5 SR1) was used to compare the STL format based digital images of each model. The preliminary findings of the study show that an increased diverse visual coloring based error distribution of the scanned images between the RP plastic and dental impression casting models was found as well as a maximum average morphological error (0.1409mm) over eleven selected spots. The maximum relative errors could be due to a precision of the devices used in general during scanning and printing of an intraoral scanner and RP device, respectively, in addition to the errors from hardware and software operated during image reconstruction. In the future, an increased sample size of comparisons among impaired morphology in teeth, various usages of intraoral scanners or optical based scanners, specifically, will gain a better statistical meaningful finding of the study.*

AB - Rapid prototyping (RP) technology used in digital design of dental industry has been rapidly developed. Most users in dental industry have concerned accuracy of the dental model printed by an RP device in comparison to that of a conventional intraoral impression. Thus, the purpose of the study was to compare digital morphology of a subject’s teeth between a dental impression and a printed dental RP model of the same subject whose digital dental morphology was created. In this study, one subject’s entire oral teeth was impressed and casted; a plastic RP model was also produced after the subject’s teeth were scanned using an intraoral scanner (3Shape TRIOS) to produce a whole dental images in digits. In order to digitally compare morphological dimensions between the impression and RP models, each model’s shape and dimension were scanned using a reverse engineering based optical scanner in producing digital dental images in 3D, a STL based format; meanwhile, a quality control industrial software (ATOS GOM Inspect V7.5 SR1) was used to compare the STL format based digital images of each model. The preliminary findings of the study show that an increased diverse visual coloring based error distribution of the scanned images between the RP plastic and dental impression casting models was found as well as a maximum average morphological error (0.1409mm) over eleven selected spots. The maximum relative errors could be due to a precision of the devices used in general during scanning and printing of an intraoral scanner and RP device, respectively, in addition to the errors from hardware and software operated during image reconstruction. In the future, an increased sample size of comparisons among impaired morphology in teeth, various usages of intraoral scanners or optical based scanners, specifically, will gain a better statistical meaningful finding of the study.*

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Kuo R-F, Chen SJ, Wang D-Y, Lu BC, Huang ZH. Digital morphology comparisons between models of conventional intraoral casting and digital rapid prototyping. In 5th International Conference on Biomedical Engineering in Vietnam. Vol. 46. Springer Verlag. 2015. p. 478-480 https://doi.org/10.1007/978-3-319-11776-8_118