Production stages for additively manufactured removable partial dentures. Left to right: dental prosthesis with support structures after AM; with support structures removed; and after completion.
Production stages for additively manufactured removable partial dentures. Left to right: dental prosthesis with support structures after AM; with support structures removed; and after completion.

‘Compared to the conventional approaches that have been used up to now to produce removable partial dentures, clear competitive advantages can be achieved using AM,’ said Martin Bullemer, business development manager medical at EOS.

‘Digitally manufactured partial dentures have been tested with pilot customers. The feedback has been very positive, encouraging us to continue to develop and optimise the application.’

During a pilot phase, dental laboratory Flussfisch GmbH in produced partial dentures based on direct metal laser sintering (DMLS) technology from EOS. ‘Digitally manufactured dental prostheses have consistent tolerances and quality as well as reproducible properties and at the same time are very accurate, allowing a good fit.,’ said Michaela Flussfisch, MD of Flussfisch GmbH.

EOS’ metal system EOSINT M 270 Dental is used for manufacturing of removable partial dentures using CE-certified material EOS CobaltChrome RPD. 

During the additive manufacturing process, the fine powder particles ensure a fine-grain structure so that a digitally produced dental prosthesis has much higher strength and fatigue resistance than a casting. Additionally, the risk of a clamp breakage is reduced compared to a conventional cast model, EOS says. The finished products comply with the relevant standards EN 1641 and EN ISO 22674. 

Entry-level AM

EOS is also presenting the smaller EOS M 100 system for the first time at IDS. The system provides the dental industry with an entry-level AM system based on metal technology. With its small build volume and 100 mm diameter circular platform, dental laboratories can now manufacture high quality crowns and bridges from EOS CobaltChrome SP2. The system is equipped with a 200 watt fibre laser and has high power stability as well as constant processing conditions to produce better components.