Purpose: The aim of the present study was to evaluate and compare the dimensional accuracy of stone models made by addition silicone impression material using three puttywash impression techniques: one step putty wash (dual viscosity), two step and modified two step putty wash technique. Material and Methods: A stainless steel master model was constructed simulating a three-unit fixed prosthesi...

Figure 1. Apply transparent occlusal registration material. For successful implant placement, the evaluation of anatomic structures is important in deciding the diameter, length, position, and angulation of the implant. Various diagnostic methods such as radiographic stent and cone-beam computed tomography (CBCT) can be used to determine the appropriate position. A radiographic stent can stably...

W hen preparing a single-unit crown, or multiple unit bridge, dentists inevitably follow a similar routine. The prepared tooth/ teeth are impressed in a good quality impression material such as a polyether, or the most widely used impression material, an addition silicone vinyl polysiloxane (VPS),1 which accounts for 95% of the impressions sent to the dental laboratory.2 The impressions are tak...

Surface reproduction was evaluated for epoxy resin and polyether resin dies as well as for gypsum dies by observing the changes in roughness. Significant differences were found by the interaction of the impression and the dies. The resin dies generally showed better results than the gypsum dies when the elastomeric impressions were used. Especially the resin dies were both excellent in surface ...

Soft denture liners are used in complete and partial removable dentures to distribute functional loads homogeneously on the denture-bearing tissues. These materials are recommended in cases of irregular bone resorption, bony undercuts, thin atrophic mucosa, immediate prosthesis, healing after implant placement, and for patients with bruxism and xerostomia. The resilient lining materials can be ...