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Laboratory evaluation of production efficiency for removable partial denture frameworks using in-house casting versus outsourced additive manufacturing techniques.

Dr Zaid Ali BChD, MFDS RCS Edin, MSc, PhD, PGDip, PgCert/Dr Duncan Wood, B.Med.Sci, PhD, Dip/Mr Abdulrahman Elmougy, BDS, MFDS RCS Edin, MSc, FDS (Rest Dent) RCS Edin/Mr Paul Kelleher/Professor Nicolas Martin, BDS, PhD, PgCert T&L, MFDS RCSI, FDS (Rest Dent) RCSI, FDS (Rest Dent) RCS Eng.

DOI: 10.11607/ijp.7132

Purpose: To compare the production efficiency of selective laser sintering (SLS) to traditional casting (CAST) for the fabrication of metal prosthodontic frameworks in a prospective pilot evaluation in a hospital prosthodontic laboratory setting. Materials and Methods: The time taken to complete each of the identified stages in the production of 50 removable partial denture frameworks made using either SLS (n = 25) or CAST (n = 25) workflows was measured. The mean time for production was calculated for each workflow, and the difference was tested for statistical significance. Results/Conclusion: The results indicate that an SLS workflow may be more time-efficient, and further cost-effectiveness research is indicated.

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