8/3/2023 0 Comments Intaglio surface dentistry![]() ![]() In addition, this technique can reduce clinical and laboratory time, as well as the necessity of storing gypsum casts. This digital intraoral and extraoral scanning technique offers a way to transfer the subgingival contours and intaglio surface of the interim restoration to the definitive restoration. However, once the interim restoration is removed to make an impression, the subgingival tissue, which is no longer physically supported, tends to collapse. In addition, this technique can reduce clinical and laboratory time, as well as the necessity of storing gypsum casts.ĪB - The accurate transfer of the subgingival contours of implant-supported restorations and pontics is essential for providing the dental technician with the necessary information to fabricate an optimal definitive fixed dental prosthesis. N2 - The accurate transfer of the subgingival contours of implant-supported restorations and pontics is essential for providing the dental technician with the necessary information to fabricate an optimal definitive fixed dental prosthesis. © 2019 Editorial Council for the Journal of Prosthetic Dentistry Within the limitations of this in vitro study, the CMP and IPS veneer systems resulted in greater bond strengths than those of the CER veneer system.T1 - Transferring subgingival contours around implants and the intaglio surface of the pontic to definitive digital casts by using an intraoral scanner ![]() As seen with the FE-SEM, the intaglio surface of CMP did not display microretentive features, while multiple microretentions were observed in both CER and IPS after HF etching. The pretreated intaglio surface of two extra veneers and four fractured specimens per group were morphologically characterized using FE-SEM.ĬER resulted in statistically lower mean μSBS (7.1 ± 1.2 MPa) than the other two veneer systems, CMP (15.2 ± 2.5 MPa) and IPS (14.7 ± 1.7 MPa) at p < 0.0001. In the peripheral/posterior palatal seal area, denture bases printed at a 90 build angle showed significantly better adaption than other groups. After polymerization, the specimens were fractured in shear mode using the wire-loop method in a universal testing machine. Overall, intaglio surface adaptation of denture bases printed from three angles had no significant difference in adaption. As a result of the analysis, all null hypotheses were rejected. After delimitation of the bonding area with a double-faced adhesive tape, 0.8-mm-diameter cylinders of composite luting material were bonded to the pretreated intaglio surface. This in vitro study investigated the intaglio surface trueness and margin quality of the interim crown commonly used in the clinic by using the dental 3D printer in accordance with the type of tooth and the build angle. These design characteristics are not mutually exclusive, as many generally convex surfaces will contain concavities and vice versa. Three veneer systems (veneer and respective luting material) were used in this study: two prefabricated veneer types, Cerinate One-hour (CER, DenMat) and Componeer (CMP, Coltene), and a laboratory- made veneer, IPS e.max Press (IPS, Ivoclar Vivadent) used as the control. The intaglio surface of a prosthesis is based on the individual patient's anatomy and can have areas described as convex or concave. To measure the microshear bond strengths (μSBS) of composite resin to the intaglio surface of prefabricated indirect veneers and analyze the FE-SEM ultramorphology of the pretreated intaglio surfaces as well as the fracture modes. ![]()
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