What is a resin-modified glass ionomer?
Resin-modified glass ionomers (RMGI) were developed in an attempt to improve mechanical properties, decrease setting time, and attenuate moisture sensitivity. Simplistically, RMGIs are a hybrid of glass ionomers and composite resin, and thus contain acid-base and polymerizable components.
Is glass ionomer a resin?
Glass ionomer cements are classified as either conventional glass ionomer cements, which are water-based without any resin, or resin-modified glass ionomer, which has about 10% resin added to improve physical properties.
What is polyacid modified resin?
Compomers (polyacid-modified composite resins) are esthetic materials chemically similar to the well-established composite resins8. They were introduced to the dental profession in the early 1990s10, and were intended to combine the benefits of traditional composite resins and those of glass-ionomer cements16.
What is the advantage of using glass ionomer cement?
Glass-ionomer cements provide tooth-coloured restorations with a low technique sensitivity. They bond chemically to sound and caries-affected tooth structure and release levels of fluoride that protect cavosurface margins from recurrent caries attack.
What is the difference between GI and RMGI?
RMGI’s are more translucent and esthetic than self-curing GI’s. The fluoride release is less than self- curing GI’s but they have proven release of fluoride ions during acidic attack and can be recharged with exposure to external sources of fluoride.
What is the difference between composite and Compomer?
Compomers have poorer mechanical properties than dental composites, with a lower compressive, flexural and tensile strength. Therefore, compomers are not an ideal material for load bearing restorations.
What is Fuji IX used for?
Fuji IX GP helps eliminate caries, remineralize affected dentin and seal the restoration to reduce post operative sensitivity and secondary caries. Fuji IX GP FAST is used to restore the occlusal surfaces of primary teeth because it’s not only quick, it offers fluoride release and prevents microleakage.
When would you use glass ionomer?
Glass-ionomers have various uses within dentistry. They are used as full restorative materials, especially in the primary dentition, and also as liners and bases, as fissure sealants and as bonding agents for orthodontic brackets.
Do you etch RMGI?
You can safely etch set RMGI and enamel, giving the preferred etched pattern for enamel bonding with reduced dentinal sensitivity.
Do you etch before GIC?
The results suggest that phosphoric acid etching of GIC prior to the placement of composite resin does not improve the sealing ability of sandwich restorations. The RMGIC was more effective in preventing dye penetration at the GIC-resin composite- dentin interfaces than CI.
When can I eat after a glass ionomer filling?
This is true for amalgam and glass ionomer cements. Since an amalgam filling is more likely to be on a chewing surface and thus taking a lot of pressure, it is best to take it easy for a full day, to ensure the filling gets to maximum hardness before you eat and chew as normal.