What type of stroke is used to remove residual calculus deposits, microbial plaque, and plaque by-products from root surfaces?
  1. Overlap strokes
  2. Hand pivot angulation
  3. Root debridement work strokes
  4. Oblique work stroke
Explanation
Answer - C - Root debridement work strokes are used to remove residual calculus deposits, microbial plaque, and plaque by-products from root surfaces. The strokes are done with hand-activated curet sans an angulation of 60-70 degrees. Lateral pressure is light to moderate, with as many strokes as necessary to cover the entire root surface.
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