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Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques.
Int J Prosthodont. 2017 Jul/Aug; 30(4):348-353.IJ

Abstract

PURPOSE

The aim of this study was to explore the application of computer-aided design and rapid prototyping (CAD/RP) for removable partial denture (RPD) frameworks and evaluate the fitness of the technique for clinical application.

MATERIALS AND METHODS

Three-dimensional (3D) images of dentition defects were obtained using a lab scanner. The RPD frameworks were designed using commercial dental software and manufactured using selective laser melting (SLM). A total of 15 cases of RPD prostheses were selected, wherein each patient received two types of RPD frameworks, prepared by CAD/RP and investment casting. Primary evaluation of the CAD/RP framework was performed by visual inspection. The gap between the occlusal rest and the relevant rest seat was then replaced using silicone, and the specimens were observed and measured. Paired t test was used to compare the average thickness and distributed thickness between the CAD/RP and investment casting frameworks. Analysis of variance test was used to compare the difference in thickness among different zones.

RESULTS

The RPD framework was designed and directly manufactured using the SLM technique. CAD/RP frameworks may meet the clinical requirements with satisfactory retention and stability and no undesired rotation. Although the average gap between the occlusal rest and the corresponding rest seat of the CAD/RP frameworks was slightly larger than that of the investment casting frameworks (P < .05), it was acceptable for clinical application.

CONCLUSION

RPD frameworks can be designed and fabricated directly using digital techniques with acceptable results in clinical application.

Links

Publisher Full Text (DOI)

Authors

Ye H
No affiliation info available
Ning J
No affiliation info available
Li M
No affiliation info available
Niu L
No affiliation info available
Yang J
No affiliation info available
Sun Y
No affiliation info available
Zhou Y
No affiliation info available

MeSH

AdultAgedComputer-Aided DesignDental AlloysDental Casting TechniqueDenture DesignDenture, Partial, RemovableFemaleHumansImaging, Three-DimensionalJaw, Edentulous, PartiallyMaleMiddle AgedSoftware

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28697204

Citation

Ye, Hongqiang, et al. "Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques." The International Journal of Prosthodontics, vol. 30, no. 4, 2017, pp. 348-353.
Ye H, Ning J, Li M, et al. Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques. Int J Prosthodont. 2017;30(4):348-353.
Ye, H., Ning, J., Li, M., Niu, L., Yang, J., Sun, Y., & Zhou, Y. (2017). Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques. The International Journal of Prosthodontics, 30(4), 348-353. https://doi.org/10.11607/ijp.5270
Ye H, et al. Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques. Int J Prosthodont. 2017 Jul/Aug;30(4):348-353. PubMed PMID: 28697204.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Preliminary Clinical Application of Removable Partial Denture Frameworks Fabricated Using Computer-Aided Design and Rapid Prototyping Techniques. AU - Ye,Hongqiang, AU - Ning,Jing, AU - Li,Man, AU - Niu,Li, AU - Yang,Jian, AU - Sun,Yuchun, AU - Zhou,Yongsheng, PY - 2017/7/12/entrez PY - 2017/7/12/pubmed PY - 2017/9/14/medline SP - 348 EP - 353 JF - The International journal of prosthodontics JO - Int J Prosthodont VL - 30 IS - 4 N2 - PURPOSE: The aim of this study was to explore the application of computer-aided design and rapid prototyping (CAD/RP) for removable partial denture (RPD) frameworks and evaluate the fitness of the technique for clinical application. MATERIALS AND METHODS: Three-dimensional (3D) images of dentition defects were obtained using a lab scanner. The RPD frameworks were designed using commercial dental software and manufactured using selective laser melting (SLM). A total of 15 cases of RPD prostheses were selected, wherein each patient received two types of RPD frameworks, prepared by CAD/RP and investment casting. Primary evaluation of the CAD/RP framework was performed by visual inspection. The gap between the occlusal rest and the relevant rest seat was then replaced using silicone, and the specimens were observed and measured. Paired t test was used to compare the average thickness and distributed thickness between the CAD/RP and investment casting frameworks. Analysis of variance test was used to compare the difference in thickness among different zones. RESULTS: The RPD framework was designed and directly manufactured using the SLM technique. CAD/RP frameworks may meet the clinical requirements with satisfactory retention and stability and no undesired rotation. Although the average gap between the occlusal rest and the corresponding rest seat of the CAD/RP frameworks was slightly larger than that of the investment casting frameworks (P < .05), it was acceptable for clinical application. CONCLUSION: RPD frameworks can be designed and fabricated directly using digital techniques with acceptable results in clinical application. SN - 0893-2174 UR - https://www.unboundmedicine.com/medline/citation/28697204/Preliminary_Clinical_Application_of_Removable_Partial_Denture_Frameworks_Fabricated_Using_Computer_Aided_Design_and_Rapid_Prototyping_Techniques_ L2 - https://doi.org/10.11607/ijp.5270 DB - PRIME DP - Unbound Medicine ER -