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Mechanical properties of different designs of RPD fabricated with selective laser melting and conventional casting.

Al Rasheed, Omer (2023) Mechanical properties of different designs of RPD fabricated with selective laser melting and conventional casting. Master's Thesis, University of Pittsburgh. (Unpublished)

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Statement of Problem: With the increase in use of SLM to fabricate dental prosthesis, is
there a compromise in mechanical properties when compared to casted dental prosthesis. Purpose: The aim of this study is to mechanical test removable dental prosthesis (RPD) with 2 different means of fabrication, SLM and conventional casting with castable resin printed
by SLA and by 2 different clasp designs, c-clasp and RPI.
Materials and Methods: A total of 9 RPD frameworks were fabricated, divided by 3 for
the 3 groups, C-clap casted, C-clasp SLM, and RPI casted. A digital design was made on CAD software and an STL file was generated. A castable resin and the SLM were fabricated by the same STL file. Each RPD was tested for 10,000 cycles of insertion and removal, and retentive forces measured.
Results: There was no significant difference between all 3 groups with the SLM C-clasp having the highest initial retentive force followed by the RPI.
Conclusion: SLM may be used for economic advantages to fabricate dental prosthesis without the compromise of mechanical properties found in the casted dental prosthesis.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Al Rasheed, Omeroma25@pitt.eduoma25
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Thesis AdvisorFerence, Johnf2022@pitt.eduf2022
Committee MemberStoffer, Warrenwms19@pitt.eduwms19
Committee MemberShah, Nileshnhs3@pitt.edunhs3
Committee MemberKunkel, Thomastck14@pitt.edutck14
Date: 1 July 2023
Date Type: Publication
Defense Date: 6 September 2022
Approval Date: 1 July 2023
Submission Date: 23 June 2023
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 43
Institution: University of Pittsburgh
Schools and Programs: School of Dental Medicine > Dental Science
Degree: MDS - Master of Dental Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: RPD,SLM, mechanical properties, SLA
Date Deposited: 01 Jul 2023 13:35
Last Modified: 01 Jul 2023 13:35


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