Resin-Modified Glass Ionomer
Also written as: RMGI — Resin-Modified Glass Ionomer
A hybrid restorative material combining the fluoride-releasing properties of glass ionomer cement with the improved aesthetics and strength of resin components.
Full Definition
Resin-modified glass ionomer (RMGI) is a dental restorative and luting material that incorporates light-curable or chemically-curable resin into a conventional glass ionomer base. This modification improves mechanical strength, moisture tolerance during setting, and translucency compared to conventional glass ionomer. RMGIs retain the key clinical advantage of sustained fluoride release, making them popular in paediatric dentistry and caries-active patients. Editors should be alert to variant spellings and hyphenation; the full form 'resin-modified glass ionomer' requires hyphens in the pre-nominal modifier. The abbreviation RMGI appears frequently in clinical trial reports and materials science literature.
Usage
Usage note: Hyphenate 'resin-modified' as a compound modifier preceding a noun. Distinguish from 'compomer', which has a higher resin content and different setting mechanism.
In Context
- "The cavity was restored using a resin-modified glass ionomer to take advantage of its fluoride-releasing properties in this high-caries-risk patient." — Clinical treatment notes
- "RMGI luting cement was selected for cementation of the ceramic crown due to its biocompatibility." — Laboratory prescription form