Dental Materials Quiz 12

Dispersion of crystalline phase to strengthen ceramics results in_________________?

Suck back porosity is due to_________________?

The main ingredient in dental plaster in_______________?

The strength of gypsum prouducts is generally expressed in terms of______________?

Benzoin methyl ether in a polymer indicates that they may be cured in the presence of________________?

To make the vinyl Polysiloxane hydrophilic the following is added_______________?

Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material_____________?

Which of the following cements is contraindicated in mouth breathers_______________?

Function of carnauba wax_________________?

Which of the following impression material is elastic________________?

Which of the following bur is used in the preparation of cavity restored with porcelain fused to metal ?

VLC resins are also called as______________?

Porosity in porcelain can be prevented by_______________?

Immediate pouring of impressions is most critical in_____________?

Setting time of ZOE is best controlled by______________?

Eugenol may be replaced in the zinc oxide eugenol cement by______________?

Gypsum bonded investment should not be heated over______________?

What is the working time of amalgam?

Which of the following zones is used for melting alloy during casting______________?

Gelation temparature of agar is between________________?

A material which is a mixture of two different materials and its properties are_____________?

The ability of the base to resist occlusal forces and to support the restoration is affected by_______________?

One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?

A patient who has had a recent amalgam filling in the upper teeth has a gold filling in the lower teeth, the patient complains of pain. The reason for this can be mainly_____________?

Which of the following fuel gases is the best choice of heat source to carry out soldering process ?

Impression compound is characterized by all of the following except_______________?

Acrylic (cold cure)______________?

Cleaning of base metal alloy is done by______________?

Average particle size of powdered gold is________________?

In type II gold alloys _______ Karat gold is used?

The best pickling solution for gypsum bonded investment is_______________?

Etchant preferred in gel from than in liquid form________________?

Which of the following component acts as an accelerator in ZOE impression paste ?

Agar is prepared from_______________________?

Which of the following is true about Agar hydrocolloid impression material ?

Residual monomer content of chemically activated resins is______________?

Opaque porcelain________________?

Lenolin is added is ZOE paste to______________?

Casting flux is used to_______________?

In spherical alloys as compared to lathe cut____________?

The linear solidification shrinkage of Type IV Ni-Cr based alloys is_______________?

A material behaves in certain ways above and below the proportional limit on a stress strin curve, which of the following is correct______________?

Fins and spines on the casting is seen due to_______________?

Most mucostatic among the following_____________?

Hysteresis in a hydrocolloid gel is______________?

No trail closure is necessary with which one of the technique during denture fabrication_____________?

Condensation shrinkage of porcelain during firing depends on__________________?

To cure a heat cure resin, a proper heating cycle is necessary_____________?

About zinc oxide eugenol all are true except_______________?

If resin is packed in sandy stage what will be seen in the processed denture ?

Radio opacity to composite resins is rendered by_______________?

Amalgam means_____________?

Pickling________________?

Impression techniques are used for recording________________?

Which of the following increases castability of base metal alloys________________?

Vulcanization refers to the setting of__________________?

Dental porcelains are crystalline materials of________________?

Crucible indicated for casting base metal alloys is______________?

The opacity in ceramics is achieved by adding_______________?

Well premeasured capsules of amalgam can release mercury vapour during_______________?

For dental amalgam, the elastic modulus and tensile strength is______________?

Which of the following cements have anti cariogenic properly________________?

The maximum carbon content of steel used in dentistry is__________________?

The most toxic form of mercury is_________________?

Most preferable cement for temporary restoration______________?

Property of the material, which describes the resistance to abrasion, is_________________?

Outstanding clinical performance of dental amalgam restoration is related to its____________?

Porcelain is best fired__________________?