Intaglio surface dentistry6/21/2023 ![]() This plan consists of in-office maintenance visits and adequate self-care. The long-term maintenance plan should be customized to meet each patient’s specific needs. Adequate prosthetic contour avoids flanges and concavities, and provides a cleansable surface and light contact on soft tissue (B). Prosthetic contour and intaglio surface: Poor contour due to buccal flange, ridge lap design, and concavities that result in excessive biofilm accumulation (A). ![]() This concluding installment in the series will explore clinical considerations for maintaining these restorations and managing any complications that arise. 1ĭue to the complex nature of full-arch, implant supported fixed prostheses - also known as hybrid prostheses - it is crucial for the patient and treating clinician to engage in a strict, long-term maintenance plan that allows adequate follow-up and early detection of possible complications. The planning, placement and restorative phases for hybrid prostheses are discussed in the first article of this two-part series, “Implant Treatment Planning for Hybrid Prostheses,” available at. Adequate diagnosis and treatment planning are quintessential to ensure predictable surgical and restorative outcomes when using this treatment modality. Since Brånemark’s discovery of osseointegration, full-arch fixed implant prostheses have ranked among the best treatment options to restore function, esthetics and phonetics for patients affected by edentulism of at least one complete arch. Part 2 will focus on maintaining these prostheses and managing complications. Appearing in June 2020, the first installment, “ Implant Treatment Planning for Hybrid Prostheses,” explored planning, placement and restoration of implant supported hybrid prostheses. 2022 1– 7.PART 2 of a two-part series This is the concluding installment of a two-part series. Comparison of denture base adaptation between additive and conventional fabrication techniques. Among the conventional techniques, more compatible dentures can be produced with IM while among the additive techniques, more compatible dentures can be produced with DLP technique. The authors report that maxillary denture bases fabricated using DLP and IM techniques showed higher surface adaptation than the bases fabricated using LCD and CM techniques. The 3D surface deviations of the total intaglio surface, denture border apex, palatal vault, and crest of the ridge were also evaluated. The scanned intaglio surface of each denture base was superimposed on the scanned reference cast to compare the degree of tissue surface adaptation. Different factors in the production process can cause dimensional deformations.įor this study, a definitive maxillary cast was duplicated using a silicone mold to create 40 gypsum casts that were laser scanned before any fabrication procedures were initiated and then 10 gypsum models were created for each technique/group (DLP, LCD, CM, and IM). To obtain adequate retention and stability in complete dentures, good adaptation between the impression surface of the prosthesis and the tissue surface must occur. Now online in the Journal of Prosthodontics, an in vitro study comparing the adaptation of denture bases fabricated by injection molding (IM), compression molding (CM), liquid crystal display (LCD), and digital light processing (DLP) techniques.
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