The accuracy of custom-made metal posts manufactured using selective laser sintering versus conventional casting techniques: a laboratory study.

ABSTRACT:

Background

The purpose of this study was to evaluate the efficacy of selective laser sintering (SLS) against the traditional casting method in fabricating customized Co-Cr dental posts, employing 3D coordinate metrology for analysis.

Methods

A 10 mm post space was prepared in a transparent acrylic block using a red ParaPost XP drill (1.25 mm diameter). An impression of this cavity was taken with a 1.143 mm diameter ParaPost impression post and auto-polymerizing acrylic resin. The resin patterns obtained were digitized with a Straumann Cares scanner, generating STL files, which were forwarded to Renishaw for the production of 10 Co-Cr posts through SLS. Simultaneously, the original resin patterns underwent investment and casting in Co-Cr alloy. The dimensional accuracy of the

SUBMITTER: Alnazzawi AA 

PROVIDER: S-EPMC11603624 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature