Answer :
Final answer:
A replica of the maxillary and mandibular arches made from an impression is known as a dental cast. It is a detailed copy of a patient's teeth and oral tissues used in the design and preparation of dental prosthetics or orthodontic treatments. Option a is the answer.
Explanation:
The term that refers to a replica of the maxillary and mandibular arches made from an impression is called a dental cast. A dental cast is a very detailed copy of a patient's teeth and oral tissues. It's used as a model to study the oral structures closely and is crucial in the design and preparation of dental prosthetics or orthodontic treatments. Options like a wax model, orthodontic appliance, and dental template don't accurately describe this replica.
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