Question

Why does the dentist use a separate set of hand

instruments when restoring with composite
materials?
O They are lighter in color
O Traditional metal instruments tend to break
Traditional metal instruments may discolor the
composite material

Answer 1

The dentist uses a separate set of hand instruments when restoring with composite materials due to their lighter color, the tendency of traditional metal instruments to break, and the potential for discoloration caused by metal instruments.

Step-by-step explanation:

The dentist uses a separate set of hand instruments when restoring with composite materials for a few reasons:

1. They are lighter in color: Composite materials used for dental restorations are typically shaded to match the natural color of teeth. By using lighter-colored hand instruments, the dentist can easily differentiate between the composite material and the instruments, ensuring accurate placement and shaping.
2. Traditional metal instruments tend to break: Composite materials are not as hard as metal, so using traditional metal instruments can lead to chipping or fracturing of the composite material during the restoration process.
3. Traditional metal instruments may discolor the composite material: Metal instruments can leave marks or particles on the composite material, which may alter its appearance or cause discoloration over time.

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