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Dental Materials Composition Quiz

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Questions and Answers

What is the main function of silane in resin composites?

To increase viscosity

To reduce shrinkage

To improve adhesion to filler particles (correct)

To provide translucency

Which monomer is described as having low shrinkage, high viscosity, and being very stable?

TEGDMA/TEGMA

Bis-EMA

UDMA

Bis-GMA (correct)

What is a drawback of microfilled resin composites?

Difficulty in obtaining material with more fillers (correct)

Excellent polishing capabilities

High mechanical properties

Low water sorption

Why are microfilled resin composites praised for their polishing capabilities?

Small filler size and brushing effect Signup and view all the answers

What is the purpose of using pigments and opacifiers in resin composites?

To provide color and opacity Signup and view all the answers

Which type of classification is characterized by fillers that are too large and hard, causing surface roughness over time?

Marcofilled Signup and view all the answers

Which type of filler is recommended to use in order to maintain the shine of dental work after a few years?

Microhybrid filler Signup and view all the answers

What is the main advantage of using microhybrid filler over hybrid filler?

Increased shine retention over time Signup and view all the answers

Which type of filler includes small fillers and medium-sized clusters composed of small fillers?

Nanohybrid filler Signup and view all the answers

What is a key characteristic of nanohybrid filler when it comes to clinical results?

Similar results to other types of fillers Signup and view all the answers

Why is it important to reduce the size of fillers and use microhybrid fillers?

To maintain shine over time Signup and view all the answers

What is a drawback associated with the hybrid filler after a few years?

Reduced shine retention Signup and view all the answers

Which type of filler has clusters composed of small fillers within its formulation?

Nanohybrid filler Signup and view all the answers

What characteristic makes microhybrid filler aesthetically appealing for dental work?

High gloss retention Signup and view all the answers

What is the main difference between nanohybrid and microhybrid fillers?

Size distribution of fillers used Signup and view all the answers

Why are microhybrid fillers ideal for dental work that needs to maintain a glossy appearance?

Excellent polishing maintenance characteristics Signup and view all the answers