Water sorption of dental resin composites: Is a new method the future?
Intraoral, diffusion‐controlled water sorption leads to dimensional expansion and mechanical degradation over time. Measurement of small quantities of water in dental resin composites (RCs) is challenging, as current techniques rely on weighing approaches. Here, we evaluate Karl‐Fischer Titration (K...
| Publicado en: | European Journal of Oral Sciences Vol. 134; no. 3; pp. 1 - 13 |
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| Autores principales: | , , , , |
| Formato: | equations & formulas pictorial research tables/charts Journal Article |
| Publicado: |
Wiley-Blackwell
Jun2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=193836825&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 193836825 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09098836 8DX jtl: European Journal of Oral Sciences issn: 09098836 maglogo: Y pubinfo: dt: Jun2026 vid: 134 iid: 3 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 193836825 192300062 193836825 193836825 10.1111/eos.70090 193836825 ppf: 1 ppct: 12 formats: tig: atl: Water sorption of dental resin composites: Is a new method the future? aug: au: Heckel, Lea Belli, Renan Schüssler, Tabea Fischer, Carolin Lohbauer, Ulrich affil: Department of Operative Dentistry and Periodontology, Research Laboratory for Dental Biomaterials, Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, Germany sug: subj: Composite Resins Dental Materials Water Analysis Absorption Materials Testing Chemistry, Analytical Human Computer-Aided Design Spectroscopy, Near-Infrared Kinetics Descriptive Statistics Two-Way Analysis of Variance Post Hoc Analysis Specimen Handling Comparative Studies Analytic Research Experimental Studies ab: Intraoral, diffusion‐controlled water sorption leads to dimensional expansion and mechanical degradation over time. Measurement of small quantities of water in dental resin composites (RCs) is challenging, as current techniques rely on weighing approaches. Here, we evaluate Karl‐Fischer Titration (KFT) and thermogravimetry (TG) as alternatives to ISO 4049 standard. Four indirect RCs, one polymer‐infiltrated ceramic network (PICN), and one direct composite were soaked in water over 270 days, heated, and evaporated water was detected by KFT and TG. Dilatometric (DIL) and TG coupled with Fourier transform infrared spectroscopy (TG–FTIR) measurements were conducted to verify the methodology and to compare with ISO 4049 outcome. Initial water content was measured between 0.19 and 1.65 wt.%, which increased to 0.73–3.12 wt.% upon water sorption over 270 days. The direct RC performed well, indirect RCs showed significant differences, and the PICN performed comparable to indirect RCs. KFT correlated well with ISO, except for one RC. KFT proved slightly more sensitive than TG. DIL offered different linear expansion of high‐versus‐low‐absorbing materials and confirmed the water sorption rate seen by KFT. In contrast to ISO, KFT has the potential to detect initial water content allowing for a precise and kinetic quantification of the water diffusion process. pubtype: Academic Journal doctype: equations & formulas pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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