ArticleBMC oral health2026
From polyetheretherketone to 3D‑printed composites: hydrothermal stability and cement‑dependent resin bonding of high‑performance polymers to pediatric restorations.
Article in BMC oral health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
backgroundThis study evaluated the water sorption/solubility, surface characteristics, and bonding performance of different high‑performance polymers intended for restorations and appliances used in pediatric dentistry, emphasizing their hydrothermal stability and cementation protocols for durable bonding.
methodsDisc‑shaped specimens of milled polyetheretherketone (PEEK), ceramic‑filled 3D‑printed composite resin, and milled polymethylmethacrylate (PMMA)‑based acrylic polymer were prepared. Water sorption and solubility were determined according to ISO 4049 after storage in distilled water and artificial saliva. Surface treatments included no treatment, airborne‑particle abrasion, and abrasion followed by application of a dimethacrylate/methyl methacrylate‑based primer. Surface microstructure, roughness, and wettability were evaluated. Shear bond strength was tested using either resin cement or glass ionomer cement under three aging conditions (24‑h water storage, thermocycling, and highly accelerated aging), and failure modes were classified.
resultsAll materials showed very low water sorption (W
conclusionsHigh‑performance polymers exhibited excellent resistance to water sorption and solubility and maintained favorable surface characteristics after clinically relevant pretreatments. Under the present in vitro conditions, resin cement combined with airborne‑particle abrasion and primer achieved more durable bonding than glass ionomer cement and may help guide material selection for pediatric‑oriented restorations and appliances.
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