Composite Resin types

Question 1

List the types of composite resin.

Answer 1

• Macrofilled
• Hybrid
• Microhybrid (low viscosity and high viscosity)
• Microfilled
• Nanofilled
• Nanohybrid

Question 2

Describe macrofilled composite resins.

State which types of restorations they are used for.

Answer 2

• Large particles
• Low polishability because of large particles
• Resin matrix wears faster than filler, causing roughness and discolouration
• Not used anymore

Question 3

Describe hybrid composite resins.

Answer 3

• Diverse mix of filler particles that come in different sizes
• High polishability
• Cannot maintain gloss
• Anterior and posterior

Question 4

Describe microhybrid composite resins.

State which types of restorations they are used for.

Answer 4

• Stronger than microfilled with okay polishability
• High- viscosity: Due to its high viscosity, subject to layering problem as porosities may be created
• Low viscosity: flowables, not strong and high poly shrinkage
• Anterior and posterior teeth

Question 5

Describe microfilled composite resins.

What kind of filler particles does it use?
State which types of restorations they are used for.

Answer 5

• Silicon dioxide filler particles
• Low filler volume
• Not strong = less wear resistance
• High resin = high shrinkage
• However, it has great polishability
• Not suitable for occlusal loading
• Excellent translucency
• Anterior teeth

Question 6

Describe nanofilled composite resins.

State which types of restorations they are used for.

Answer 6

• Nanoclusters of silica and zirconia fused together with silane
• High gloss and polishability
• All restorations

Question 7

Describe nanohybrid composite resins.

State which types of restorations they are used for.

Answer 7

• Basically when nano- size particles are incorporated into ordinary mixtures
• Strong like nanofilled
• Though, nanofilled has better gloss and polishability
• All restorations