Laboratory Evaluation of Production Efficiency for Removable Partial Denture Frameworks Using In-House Casting vs Outsourced Additive Manufacturing Techniques.

Purpose: To compare the production efficiency of selective laser sintering (SLS) to traditional casting 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 casting (n = 25) workflows was measured. The mean time for production was calculated for each workflow, and the difference was tested for statistical significance.

Occlusal Concepts and Considerations in Fixed Prosthodontics.

The UK has an increasingly ageing population, many of whom are retaining more of their own teeth. This has led to an increase in the prevalence of tooth wear and the need to replace pre-existing failing restorations. In many cases this will be achieved by fixed prosthodontics.

Characterisation of machinable structural polymers in restorative dentistry.

Objectives: To characterise the mechanical properties of the machinable polymers Pekkton (Cendres-Meteaux, Biel/Bienne, Switzerland), Lava Ultimate (3MESPE, Seefeld, Germany), Vita Enamic (Ivoclar Vivadent, Schaan, Liechtenstein) and the ceramic IPS e.Max Press (Ivoclar Vivadent, Schaan, Liechtenstein). To determine the structural integrity of full coverage crowns fabricated from these materials.