Dental Materials Archives -

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

Dental Materials, Medical Mcqs, Physical Properties / admin

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

A. Above the proportional limit a material function in a plastic manner, while below the proportional limit it behaves as an elastic
B. Above the proportional limit a material functions in an elastic manner, while below the proportional limit it behaves as an plastic
C. Either A or B
D. Neither A or B

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

Dental Materials, Medical Mcqs, Physical Properties

Which of the following is present in the powder of the acrylic resin______________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Which of the following is present in the powder of the acrylic resin______________?

A. Methyl methacrylate
B. Benzoyl peroxide
C. Hydroquinone
D. D-methyl paratolouidine

Which of the following is present in the powder of the acrylic resin______________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

Boiling point of methyl methacrylate________________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Boiling point of methyl methacrylate________________?

A. B.P of water
B. < B.P of water
C. Equal of BP of water
D. Is at normal room temperature

Boiling point of methyl methacrylate________________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

The main advantage of composites over unfilled direct filling resin is their_____________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

The main advantage of composites over unfilled direct filling resin is their_____________?

A. Higher solubility in saliva
B. Lower modulus of elasticity
C. Esthetic excellence
D. Lower thermal co-efficient of expansion

The main advantage of composites over unfilled direct filling resin is their_____________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

Composite has_______________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Composite has_______________?

A. Resin
B. Filler
C. Resin & Filler
D. None

Composite has_______________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

Acrylic resins are used for______________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Acrylic resins are used for______________?

A. Anterior restorations
B. Temporary bridges
C. Denture base
D. All of the above

Acrylic resins are used for______________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

To prevent porosity in self-cure acrylic resin, curing should be carried in______________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

To prevent porosity in self-cure acrylic resin, curing should be carried in______________?

A. Cold water
B. Hot water
C. Under tap water
D. Under vacuum pressure

To prevent porosity in self-cure acrylic resin, curing should be carried in______________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

Porosity present in a acrylic denture is usually the result of______________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Porosity present in a acrylic denture is usually the result of______________?

A. A prolonged curing cycle
B. Lack of sufficient pressure applied to flask
C. Insufficient acrylic resin monomer
D. Prolonged bench cooling after curing

Porosity present in a acrylic denture is usually the result of______________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

Cross linking in denture base resin is contributed by_____________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Cross linking in denture base resin is contributed by_____________?

A. Glycol dimetharylate
B. Benzoyl peroxide
C. N-para toluidine
D. Methyl methacrylate

Cross linking in denture base resin is contributed by_____________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins

Hydroquinone is added to methyl methacrylate monomer_________________?

Dental Materials, Medical Mcqs, Restorative Resins / admin

Hydroquinone is added to methyl methacrylate monomer_________________?

A. To prevent polymerization during storage
B. To initiate release of free radicalls
C. To enable polymerization reaction at room temperature
D. All of the above

Hydroquinone is added to methyl methacrylate monomer_________________? Read More »

Dental Materials, Medical Mcqs, Restorative Resins