7. The aim of this chapter is to discuss the theory for achieving complete denture retention and the importance of impression procedures. Mandibular CDs were fabricated using two different methods. The right corner of the mouth is reflected with a mouth mirror. Utility wax can be added to the central portion of the try to act as a guiding stop to seat the tray in place without displacing the mucosa. Mix the Tray Gel using 70 °F water measured to the designated line on the vial. a. have all instruments and materials ready before patient's arrival. Ana- tomic considerations was given emphasis for the functions of retention, stability and comfort of complete denture. Place tray front to back until Syringe Gel appears in the posterior of the tray. Repeat on the other side of the arch. 5. Extension into the retromylohyoid area. Preliminary Impressions Mix alginate and load tray. Allow a small amount of compound to cover the tray borders to retain the impression in the tray when the compound hardens. 2. Correct by adding stick compound. Browse Lectures. A complete denture (also known as a full denture, false teeth or plate) is a removable appliance used when all teeth within a jaw have been lost and need to be prosthetically replaced.In contrast to a partial denture, a complete denture is constructed when there are no more teeth left in an arch, hence it is an exclusively tissue-supported prosthesis. a. Final Impressions John Beumer III, DDS, MS, Robert Duell, DDS and Eleni Roumanas Division of Advanced Prosthodontics, Biomaterials and Hospital Dentistry UCLA School of Dentistry This program of instruction is protected by copyright ©. 15. It is crucial to ensure the lower denture impression captures the full posterior ridge and that both impressions accurately record the entire width and depth of the sulcus as this can greatly affect the stability of the finished denture. Oral tissues must be in their optimal state of health prior to impression making. 6. Preliminary impressions for patients with microstomia should be followed by technical alterations or modifications of other steps in completing the prosthesis. Rotate the tray into the mouth and carefully center it over the residual ridge. Materials, Equipment & Procedures for Complete Dentures Robert Loney First Appointment - Examination, Treatment Planning, Preliminary Impressions, Tissue Conditioning Instruments and Materials Check List Instruments Materials a. RPD kit a. alginate (pre-dispensed into cup) b. straight handpiece (for adjusting denture, if required) b. rope wax for posterior border of max. 5. dentures is a multistage process that involves a preliminary impression, a customized final impression tray and a final border impression (4,5). Insert tray Seat posterior portion Rotate the anterior portion into position Border mold the impression Completed impression Maxillary Alginate Impression, 14. Palpate where the palatal tissues are displaceable (glandular area) and mark. Modeling compound:   Impression compound is relatively simple to use, has a minimal danger of aspiration, and can be stored for a longer period of time without distortion than alginate. Gently massage the outside of the lips with both thumbs to shape the impression in this area. Hold the tray firmly in position and border mold on the right in the area of the buccal frenum by pulling the cheeks upward, inward, anteriorly and posteriorly while the compound is still soft. 4. impressions for complete dentures Nov 11, 2020 Posted By William Shakespeare Ltd TEXT ID c336eb89 Online PDF Ebook Epub Library technique on the denture base and the effect of the after external and internal examination and taking complete history of the patient the dentists make primary impression Seat the patient and be sure the patient's clothing is protected with a napkin. Generally, the mandibular impression procedure is more easily tolerated by the patient. Pour impressions in plaster with adequate bases including the central “tongue” area of the mandibular impression. The major advantages of alginate are related to its flow properties when easily displaceable tissues are present. 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