A highly accurate impression is one of success requirements in implant dentistry. passively fitting prothesis achieved when the 3-dimensional position implants precisely transferred to cast. Various techniques are described literature. Each presents indications, qualities and limits. Many studies compared main which closed open-tray impressions along with their specificities. In this second par...

Dear Editor: We read with great interest the article by Namratha and Shetty entitled “A Technique to Evaluate Custom Tray Border Extensions Before Peripheral Molding.” Articles related to evaluation of denture border extensions are numerous, but there is marked paucity of literature regarding evaluation of border extensions of custom trays before border molding. The authors have introduced a co...

the use of multiple implants in the same jaw requires a detailed knowledge of abutment angulation. the position and angulation of the abutments play an important role in treatment planning and fabrication of the custom tray. therefore diagnostic casts that contain cover screws may cause problems during implant therapy. the current article describes a technique for making a preliminary cast with...

BACKGROUND There are no clear guidelines for how long a sterile operating-room tray can be exposed to the open environment before the contamination risk becomes unacceptable. The purpose of this study was to determine the time until first contamination and the rate of time-dependent contamination of sterile trays that had been opened in a controlled operating-room environment. We also examined ...

Previous techniques that have been used to monitor broiler embryonic temperature and metabolism during incubation either have been invasive to the embryo or have not directly determined internal egg temperature. Therefore, the current investigation was conducted to determine the earliest day of incubation on which temperature transponder implantation in the egg air cell could be performed with ...

PURPOSE The aim of this study was to compare the accuracy of casts produced by 2 impression techniques and elastomeric impression materials commonly used for the fabrication of implant-supported fixed prostheses. MATERIALS AND METHODS A master model with 4 synOcta ITI implants placed unilaterally in place of the mandibular right central incisor, canine, first premolar, and first molar was con...

STATEMENT OF PROBLEM Providing the dental laboratory with an accurate replication of the hard and soft tissue of a patient is important. Therefore, it is essential to examine whether clinicians critically evaluate impressions routinely before sending them to the laboratory. PURPOSE This study evaluated the quality of impressions sent to commercial laboratories for the fabrication of fixed par...

PURPOSE A variety of impression trays are used in the fabrication of fixed indirect restorations. Impressions used in the construction of fixed indirect restorations were examined for tray type, manner of use, and overall impression quality. MATERIALS AND METHODS A commercial dental laboratory provided 1403 impressions used to fabricate fixed indirect restorations during a 3-month period. Imp...