When is the impression typically taken in the dentures process?

When is the impression typically taken in the dentures process?

• A. Immediately after extraction
• B. 4-6 weeks after extraction after gums have healed and shrunk to final shape
• C. During initial fitting
• D. After 3 months

Answer: (B)

Tissue healing and ridge stability after extraction are what this question is about. After teeth are removed, the gums and underlying bone undergo swelling, inflammation, and later resorption as they settle into a new shape. Taking an impression too soon captures tissue that is still changing, which would produce a denture that fits poorly, with limited retention and possible sore spots. Waiting about four to six weeks allows the tissues to heal and settle to their final form, providing a more accurate imprint of the ridge for a comfortable, stable denture. If you try to take the impression immediately, or after too long, you’d risk an ill-fitting appliance because the ridge shape isn’t stable yet or has changed further with continued resorption.

Tissue healing and ridge stability after extraction are what this question is about. After teeth are removed, the gums and underlying bone undergo swelling, inflammation, and later resorption as they settle into a new shape. Taking an impression too soon captures tissue that is still changing, which would produce a denture that fits poorly, with limited retention and possible sore spots. Waiting about four to six weeks allows the tissues to heal and settle to their final form, providing a more accurate imprint of the ridge for a comfortable, stable denture. If you try to take the impression immediately, or after too long, you’d risk an ill-fitting appliance because the ridge shape isn’t stable yet or has changed further with continued resorption.