Biomaterial Database

[Long term release of fluoride from selected glass-ionomer cements--in vitro study]. 2006

Piotr Kosior, and Urszula Kaczmarek

Zakład Propedeutyki Stomatologicznej Akademii Medycznej we Wroclawiu.

BACKGROUND Conventional and resin modified glass-ionomer cements according to their physico-chemical properties are widely used in dental treatment. The main advantages of these materials are chemical bonding to hard dental tissues and high level of fluoride release. The aim of this study was to compare the fluoride release of selected glass-ionomer cements in vitro conditions. METHODS Conventional glass-ionomer cement Ionofil Molar and resin modified glass ionomer cement - Vitremer were examined. Samples of the materials were placed in saline and deionised water. Fluoride concentration measurements were carried out using ORION 9609 electrode, after 1, 3, 24, 48, 72, 168 hours and next every 168 hours (7 days) until 2352 hour (98 days). RESULTS Significantly higher concentration level of fluoride released from resin modified cement (Vitremer) was obtained for saline and deionized water than conventional cement Ionofil Molar. Cumulative fluoride release in saline after 14 weeks for Vitremer was 256.87+/-15.77 microg F/mm(2) and for Ionofil Molar 206.61+/-20.01 microg F/mm(2). For both materials the dynamics of fluoride release was the highest within the first 24 hours, and sharply decreased in next intervals. CONCLUSIONS Resin modified glass-ionomer cement Vitremer released highest amount of fluoride than conventional glass-ionomer cement Ionofil Molar. Similar level of fluoride emission into deionised water and saline was observed.

UI	MeSH Term	Description	Entries
D008422	Materials Testing	The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.	Biocompatibility Testing,Biocompatible Materials Testing,Hemocompatibility Testing,Testing, Biocompatible Materials,Testing, Hemocompatible Materials,Hemocompatibility Testings,Hemocompatible Materials Testing,Materials Testing, Biocompatible,Materials Testing, Hemocompatible,Testing, Biocompatibility,Testing, Hemocompatibility,Testing, Materials,Testings, Biocompatibility
D002327	Cariostatic Agents	Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed)	Cariostatic Effect,Cariostatic Effects,Agent, Cariostatic,Agents, Cariostatic,Cariostatic Agent,Effect, Cariostatic,Effects, Cariostatic
D003188	Composite Resins	Synthetic resins, containing an inert filler, that are widely used in dentistry.	Composite Resin,Resin, Composite,Resins, Composite
D005459	Fluorides	Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.	Fluoride
D005899	Glass Ionomer Cements	A polymer obtained by reacting polyacrylic acid with a special anion-leachable glass (alumino-silicate). The resulting cement is more durable and tougher than others in that the materials comprising the polymer backbone do not leach out.	Glass Ionomer Cement,Glass Polyalkenoate Cement,Polyalkenoate Cement,Polyalkenoate Cements,Glass Polyalkenoate Cements,Glass-Ionomer Cement,Cement, Glass Ionomer,Cement, Glass Polyalkenoate,Cement, Glass-Ionomer,Cement, Polyalkenoate,Cements, Glass Ionomer,Cements, Glass Polyalkenoate,Cements, Glass-Ionomer,Cements, Polyalkenoate,Glass-Ionomer Cements,Ionomer Cement, Glass,Polyalkenoate Cement, Glass
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D017736	Ion-Selective Electrodes	Electrodes which can be used to measure the concentration of particular ions in cells, tissues, or solutions.	Electrodes, Ion-Selective,Ion Selective Electrode,Ion-Sensitive Electrode,Ion-Sensitive Electrodes,Electrode, Ion Selective,Electrode, Ion-Selective,Electrode, Ion-Sensitive,Electrodes, Ion Selective,Electrodes, Ion-Sensitive,Ion Selective Electrodes,Ion Sensitive Electrode,Ion Sensitive Electrodes,Ion-Selective Electrode,Selective Electrode, Ion,Selective Electrodes, Ion
D019279	Resin Cements	Dental cements composed either of polymethyl methacrylate or dimethacrylate, produced by mixing an acrylic monomer liquid with acrylic polymers and mineral fillers. The cement is insoluble in water and is thus resistant to fluids in the mouth, but is also irritating to the dental pulp. It is used chiefly as a luting agent for fabricated and temporary restorations. (Jablonski's Dictionary of Dentistry, 1992, p159)	Resin Cement,Cement, Resin,Cements, Resin
D020099	Coated Materials, Biocompatible	Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.	Surface-Coated Materials,Biocompatible Coated Materials,Materials, Biocompatible Coated,Materials, Surface-Coated,Surface Coated Materials