Case Report: Complete Removable Denture Constructed with the Piezographic Impression with Light Silicone
Edit Xhajanka, Neada Hysenaj and Alketa Qafmolla University of Medicine, Tirana
Abstract
The lack of stability and retention is one of the main disadvantages of total removable dentures, especially in the lower jaw. In order to achieve better results in this regard, the third impression procedure has been introduced in the construction of total removable dentures. A 70-year-old male edentulous patient, who presented in the University Dental Clinic with old loose dentures, that he had worn for 7 years. The main complaint was the lack of stability and retention. After careful examination of the current dentures and the oral cavity conditions, where a high resorption of mandibular residual ridge was present, the following treatment plan was decided: the construction of new dentures with the piezographic impression. First impressions were made with stock tray with alginate. Individual trays were constructed with photopolymerizing resin. The final impression was taken with zinc oxide eugenol. The master cast was obtained and the occlusal and base rims were made. The face bow record was done and the centric occlusion record was made. The casts were mounted on the articulator and the teeth set up was done. In the try-in stage, the piezographic impression was registered with light silicone. The piezograhic impression was registered during functional and phonetic movements. The pattern of silicone based on the piezographic impression was done. The flasking and polymerizing procedure were realized based on the traditional cycle. The dentures were clinically evaluated regarding the stability and retention of the new dentures. Also, the patient satisfaction was evaluated after 1 week, 2 weeks, 1 month, 6 months and 1 year after denture insertion and he was highly satisfied in all parameters based on the respective questionnaire. This case emphasizes the benefits of using the third impression, especially in clinical cases with high resorption of the residual ridge. This presentation is part of the project: “The evaluation of total removable dentures constructed using the third impression versus the conventional method,” funded by the National Agency for Scientific Research and Innovation (NASRI), Board of Administration Decision No. 6, dated 10.06.2024, No. 936/1 Prot.