Composites, Glass Ionomers, and Compomers

These flashcards cover key concepts, definitions, and applications related to composites, glass ionomers, and compomers, as discussed in the lecture.

What are the three types of composite resin curing methods?

Chemical-cured, light-cured, and dual-cured.

What is a composite resin composed of?

Organic resin matrix, inorganic filler particles, silane coupling agent, initiators, accelerators, and pigments.

What is the purpose of a coupling agent in composite resins?

To provide a stronger bond between inorganic fillers and the resin matrix.

What is the benefit of incrementally placing composite resin?

It minimizes polymerization shrinkage and permits adequate curing.

What are flowable composites characterized by?

Low-viscosity, light-cured resins that may be lightly or heavily filled.

What are the characteristics of packable composites?

Highly viscous microhybrids with a high volume of filler particles, suitable for posterior teeth restoration.

Describe the properties of glass ionomer restoratives.

They release fluoride, have various uses, and present advantages and disadvantages.

What does polymerization shrinkage in composites refer to?

The reduction in volume that occurs as the composite material hardens.

What are the main advantages of using compomers?

They are modified with polyacid to release fluoride and include light-activation chemicals.

What factors contribute to selecting a composite material in clinical practices?

The best material for the specific situation, considering factors like stress-bearing areas.

What is the role of shades in composite restorations?

Shade guides help select the color that matches the natural teeth.

How does the size of filler particles affect composite properties?

It defines the composites as large, small, or hybrid, influencing strength, polishability, and aesthetics.

What are the challenges associated with bulk-fill composites?

Translucency and the size and distribution of filler particles.

What is the significance of fluoride release in restorative materials?

It helps prevent recurrent caries.

What type of restoration is indicated as provisional restorations?

Esthetic restorations that maintain function and support oral hygiene.

What components are found in hybrid ionomers?

Improved physical properties and dual-cure capability.