Question 33 · LDEK · Impressions and impression materials
The disinfection of dental impressions taken with zinc oxide-eugenol impression materials in 2% glutaraldehyde solution is conducted as follows:
- A. immersion in the solution for 10 minutes.
- B. immersion, rinsing with distilled water, immersion again and drying.
- C. immersion for 10 minutes, rinsing, immersion and covering with damp gauze.
- D. 1 hour in the solution, rinsing with water and immersion for 10 hours.
- E. immersion for 10 minutes, rinsing with water and drying.
Hint
Rigid, dimensionally stable impressions tolerate immersion; think about removing disinfectant residue before pouring stone.
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