Long-term water sorption and solubility of experimental bioactive composites based on amorphous calcium phosphate and bioactive glass.

Par, Matej; Spanovic, Nika; Bjelovucic, Ruza; Marovic, Danijela; Schmalz, Gottfried; Gamulin, Ozren; Tarle, Zrinka (2019). Long-term water sorption and solubility of experimental bioactive composites based on amorphous calcium phosphate and bioactive glass. Dental materials journal, 38(4), pp. 555-564. Japanese Society for Dental Materials and Devices 10.4012/dmj.2018-145

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The aim of this study was to evaluate water sorption and solubility of two series of experimental composites containing amorphous calcium phosphate (ACP) or bioactive glass (BG). Water sorption and solubility were measured for up to 287 days. The surface precipitation of calcium phosphates was evaluated by scanning electron microscopy. The ACP-series showed higher water sorption (223-568 µg/mm3) than the BG-series (40-232 µg/mm3). In contrast, the ACP-series had generally lower solubility (37-106 µg/mm3) than the BG-series (1-506 µg/mm3). The constant specimen mass for the ACP-series was attained after 14 days of water immersion, while the mass decrease due to long-term solubility in the BG-series lasted beyond 287 days. Calcium phosphates precipitated in composites with the BG filler loading of 10 wt% or more, as well as in all of the ACP-containing composites. The experimental composite series showed water sorption and solubility considerably higher than commercial materials.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Schmalz, Gottfried Hans

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0287-4547

Publisher:

Japanese Society for Dental Materials and Devices

Language:

English

Submitter:

Doris Burri

Date Deposited:

11 Dec 2019 17:16

Last Modified:

11 Dec 2019 17:23

Publisher DOI:

10.4012/dmj.2018-145

PubMed ID:

30713282

Uncontrolled Keywords:

Amorphous calcium phosphate Bioactive composite Bioactive glass ISO 4049 Remineralizing composite

BORIS DOI:

10.7892/boris.136697

URI:

https://boris.unibe.ch/id/eprint/136697

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