منابع مشابه
Accuracy of stone casts obtained by different impression materials.
Several impression materials are available in the Brazilian marketplace to be used in oral rehabilitation. The aim of this study was to compare the accuracy of different impression materials used for fixed partial dentures following the manufacturers' instructions. A master model representing a partially edentulous mandibular right hemi-arch segment whose teeth were prepared to receive full cro...
متن کاملDimensional Accuracy of Stone Casts Obtained with Multiple Pours into the Same Mold
Aim. The aim of the present study was to compare the dimensional accuracy of stone casts obtained with vinyl polysiloxane molds through the double-impression technique with three pours into the same mold. Methods. A stainless steel master model was constructed simulating a three-unit fixed prosthesis. Twelve impressions were taken of this master model with addition silicone, using the double-im...
متن کاملProperty variations of stone casts following high-temperature sterilization.
The effects of high-temperature sterilization methods (boiling, dry-heating, autoclaving and chemiclaving) on the properties of four types of stone cast were determined. SEM observations were made of the cast surface before and after sterilization. High-temperature sterilization affected the properties of the stone casts. Boiling, dry-heating and autoclaving were considered to be unacceptable m...
متن کاملAccuracy of the second pour casts using dual-arch trays.
OBJECTIVE To compare, in vitro, the accuracy between dental stone casts obtained from the first and the second pour using metallic (Smart) and plastic (Triple Tray) dual-arch trays. MATERIAL AND METHODS The impressions were taken using Flexitime® vinyl polysiloxane from a typodont model with a mandibular right first molar prepared for a full crown. Ten impressions were made with each tray and...
متن کاملEffect of Different Energy Levels of Microwave on Disinfection of Dental Stone Casts
BACKGROUND AND AIMS Current chemical methods may not efficiently disinfect dental stone casts. The aim of this study was to investigate if microwave irradiation is effective for disinfection of stone casts. MATERIALS AND METHODS In this laboratory study, three groups (n = 162) of prepared spherical stone beads as carriers with a diameter of 10 mm were inoculated by separately soaking in three...
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ژورنال
عنوان ژورنال: Nihon Hotetsu Shika Gakkai Zasshi
سال: 1973
ISSN: 1883-177X,0389-5386
DOI: 10.2186/jjps.17.72