Effect of access-opening closure materials on fluid-related mass gain and volumetric change in three-dimensionally printed closed-hollow obturator specimens.

Researchers compared how different closure materials and resin types affected moisture absorption and size changes in 3D-printed hollow obturator specimens during thermal cycling. Composite closure material minimized weight gain while matched-resin closure minimized volume change, though sealing the access opening did not prevent fluid uptake or air-space replacement.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.