Question 534 · LDEK · Minimally invasive treatment
Choose the agent used for removing the superficial layer of enamel in caries infiltration technique using resin:
- A. 5% orthophosphoric acid for 120 s.
- B. 15% orthophosphoric acid for 180 s.
- C. 15% hydrochloric acid for 120 s.
- D. 15% hydrochloric acid for 180 s.
- E. 10% acrylic acid for 120 s.
Hint
The surface layer of an enamel lesion resists phosphoric acid; recall the stronger acid and timing used in commercial infiltration kits.
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