What is primary impression in complete denture?

After external and internal examination, and taking complete history of the patient, the dentists make primary impression, which is a critical step in fabrication of complete denture. It’s a negative imprint of hard tissue “teeth” and soft tissue in the mouth. (

What is the purpose of a primary impression?

The objectives of the primary impression are to record all the areas to be covered by the intaglio surface of the dentures and the adjacent landmarks with an impression material which is accurate and incorporates the minimum tissue displacement [5].

What is the definition of a denture impression?

DEFINITIONS • IMPRESSION: A negative likeness or copy in reverse of the surface of an object. (GPT 8) • COMPLETE DENTURE IMPRESSION A complete denture impression is a negative registration of the entire denture bearing, stabilizing and border seal areas present in the edentulous mouth.

How to make a preliminary impression on a maxillary denture?

Steps in Making the Maxillary Preliminary Impression using impression compound 1. Place 1& 1/2 cakes of red impression compound wrapped in a paper towel in the water bath set at 140 degrees F, 5 to 10 minutes prior to impression making. 2. Seat the patient and be sure the patient’s clothing is protected with a napkin.

What kind of materials are used for denture impressions?

They are soft denture materials applied on the fitting surface of the denture and they act as temporary cushion which minimize transfer of excessive masticatory forces to the underlying tissue. Apart from this light body polysulfide can also be used. impression trays. The major advantages of this technique

What should be included in a primary impression?

When the primary impression is made, the objectives are to record all areas to be covered by the impression surface of the denture and the adjacent landmarks with an impression material that is accurate. The maxillary impression should include the hamular notches, fovea