A glossy finish is best retained on a:
- a- Microfilled composite resin restoration.***
- b- Macrofilled resin restoration.
- c- Hybrid composite resin restoration.
- d- Fiber reinforced composite resin restoration.
The answer is most likely: a) Microfilled composite resin restoration.
Here's why:
- Microfilled composite:
These resins have the smallest filler particles, resulting in a smoother surface that reflects light more uniformly, leading to a higher gloss finish.
- Macrofilled composite:
These resins have the largest filler particles, which make them stronger but less polishable, resulting in a less glossy finish.
- Hybrid composite:
These resins are a blend of micro and macro fillers, offering a balance between strength and aesthetics. While they can achieve a good gloss finish, it may not be as high as pure microfilled resins.
- Fiber-reinforced composite:
These resins contain reinforcing fibers for added strength, but the fibers themselves can disrupt the smooth surface and impact the final gloss.
Therefore, microfilled composite resins generally provide the best sustained gloss finish due to their small filler particles and smooth polishability. However, depending on the specific application and desired properties, other types of composite resins might be preferred for reasons like strength, wear resistance, or translucency.
It's important to note that factors like polishing technique and material brand can also influence the final gloss outcome.
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