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Dental Office Visit #1
Preliminary Impressions
The first procedure is to make preliminary impressions.
Preliminary impressions, as related to the Trubyte E.P.F. Technique should be very slightly over-extended to cover the maximum denture bearing area with a minimum amount of displacement of tissue. A preferred material is a quality alginate such as DENTSPLY JeltrateT Impression Material.
The Preliminary Mandibular Impression
This should clearly show the following anatomical landmarks:
The residual ridge, the entire retromolar pad areas, mylohyoid ridges, areas below the lingual margin of the retromolar pads, external oblique ridges, full depth of the anterior lingual crescent areas, and all muscle and frenal attachments of the labial and buccal areas.
The Preliminary Maxillary Impression
This should clearly show the following anatomical landmarks:
The residual ridge, palate, hamular notches, throat form, turberosities, labial and buccal frenum areas, labial and buccal vestibules.
Completed alginate preliminary impressions should be poured immediately. Instructions should be given concerning preparation of individual impression trays.
This completes phase one in the dental office.
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