Which term describes the final stage where the model is poured and trimmed after an impression?

Which term describes the final stage where the model is poured and trimmed after an impression?

• A. Impression
• B. Model
• C. Final Model
• D. Final Impression

Answer: (C)

In dental lab terminology, after an impression is taken, the next step is to pour gypsum into that impression to create a cast. The stage described as the final model is the finished cast that has been poured and then trimmed to remove excess material and create clean, stable borders. This trimmed, ready-for-use cast is what you work from to fabricate restorations. The impression is the negative mold used to capture the details of the teeth and tissues, so it isn’t the final object you use for fabrication. The term “final model” specifically refers to the poured and trimmed cast, indicating it’s the completed form ready for use. A plain “model” could imply an earlier, untrimmed version, not the finished preparation. A “final impression” would refer to the impression itself, not the cast produced from it.

In dental lab terminology, after an impression is taken, the next step is to pour gypsum into that impression to create a cast. The stage described as the final model is the finished cast that has been poured and then trimmed to remove excess material and create clean, stable borders. This trimmed, ready-for-use cast is what you work from to fabricate restorations.

The impression is the negative mold used to capture the details of the teeth and tissues, so it isn’t the final object you use for fabrication. The term “final model” specifically refers to the poured and trimmed cast, indicating it’s the completed form ready for use. A plain “model” could imply an earlier, untrimmed version, not the finished preparation. A “final impression” would refer to the impression itself, not the cast produced from it.