Answer :
Final answer:
A lab technician can prepare a dental casting only when the dentist is present, all instruments are sterilized, an impression of the patient's teeth has been taken, and a prescription from the dentist has been received.
Explanation:
The lab technician can fabricate a casting only when certain conditions are met. These include:
- The dentist is present: The dentist plays a crucial role in directing the preparation of the dental casting based on their assessment of the patient's dental health.
- All instruments are sterilized: This is important to prevent any risk of infection since the casting will eventually be fitted to a patient's mouth.
- An impression has been taken: The impression gives the exact details of the patient's teeth which are necessary to prepare a perfectly fitting casting.
- The prescription from the dentist is received: This serves as a legal and professional directive and also provides additional clinical specifics required for the casting.
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