OBJECTIVES The purpose of this study was to compare the accuracy of implant position transfer and surface detail reproduction using two impression techniques and materials. MATERIALS AND METHODS A metal model with two implants and three grooves of 0.25, 0.50 and 0.75 mm in depth on the flat superior surface of a die was fabricated. Ten regular-body polyether (PE) and 10 regular-body polyvinyl...

Fixed dental prosthesis success requires appropriate impression taking of the prepared finish line. This is critical in either tooth supported fixed prosthesis (crown and bridge) or implant supported fixed prosthesis (solid abutment). If the prepared finish line is adjacent to the gingival sulcus, gingival retraction techniques should be used to decrease the marginal discrepancy among the resto...

BACKGROUND For epidemiological and therapeutic reasons early diagnosis of superficial viral infections is crucial. Conventional microbiological techniques are expensive, time consuming, and not sufficiently sensitive. In this study impression cytology techniques were evaluated to analyse their diagnostic potential in viral infections of the ocular surface. METHOD A Biopore membrane device ins...

PURPOSE This in vitro study evaluated the accuracy of multiple-unit dental implant casts obtained from splinted or nonsplinted direct impression techniques using various splinting materials by comparing the casts to the reference models. The effect of two different impression materials on the accuracy of the implant casts was also evaluated for abutment-level impressions. MATERIALS AND METHOD...

Numerous techniques have been developed over the years in the examination of toolmarks and footwear impression. Recent development in the following aspects are described: shoemark enhancement techniques, new casting materials, comparison scanning electron microscopy, computerized identification of striations, and recovery of erased numbers in new metallic and polymeric materials. Furthermore, q...

This study evaluated the accuracy of gypsum casts after different impression techniques and double pouring. Ten patients were selected and for each one it was obtained 5 partial putty/wash impressions with vinyl polysiloxane (VPS) material from teeth #13 to #16 with partial metal stock trays. The following techniques were performed: (1) one-step; two-step relief with: (2) PVC film; (3) slow-spe...

Introduction : Implantology is the fastest growing specialty in dentistry. A key point for accurate fabrication of fixed prosthetic structures taking an impression field. The implant-prosthetic restoration masticatory apparatus after composition function and aesthetics dentition through digital technology gaining wider popularity. Aim purpose this article to address materials compare two method...

In this article, three techniques for maxillo-mandibular relationship for Replace-Select implants are described. The use of healing abutments, planning abutments, and Impression copings are presented, and the advantages and disadvantages are discussed.