ENDO Restorative materials

Which of the following characteristics should temporary restorative materials possess?

• a) Long setting time
• b) Difficult to remove
• c) Proper marginal adaptation
• d) Acidic reaction with surrounding tissues

Temporary restorative materials should have a short setting time, making them easy and quick to apply.

• true
• False

Fill in the blank question about temporary restorative materials: __________ is a temporary restorative material that is easily prepared and applied, and it can be neutral to the surrounding tissues.

• a) Zinc phosphate cement
• b) Resin-modified glass ionomer cement
• c) Zinc oxide-eugenol
• d) Water dentin (Oxydentin, Thymodentin)

Which type of temporary restorative material is commonly used for provisional crowns and bridges due to its ease of removal and marginal adaptation?

• a) Water dentin (Oxydentin, Thymodentin)
• b) Zinc oxide-eugenol
• c) Self-setting materials
• d) Provisional cements

emporary restorative materials should have a long setting time to allow for better adaptation to the tooth structure.

• true
• False

What are the characteristics that bases should possess to isolate the pulp from thermal and chemical stimuli?

• a) High tensile strength and hardness
• b) Biocompatibility and odontotropic properties
• c) Low setting time and good marginal adaptation
• d) High elasticity and mechanical properties

Which of the following is an example of an isolating material used to protect the pulp from thermal and chemical stimuli?

• a) Varnishes
• b) Liners
• c) Glass-ionomers
• d) Phosphate cements

Which type of material is both an isolating and healing material, known for its non-hardening and biocompatible properties?

• a) Glass-ionomers
• b) Zinc oxide-eugenol
• c) Carboxylic cements
• d) Hardening calcium hydroxide cements

What is the main component of the powder in phosphate cements?

• a) CaF2 Calcium fluoride
• b) MgO magnesium oxide
• c) SiO2 silicon dioxide
• d) ZnO zinc oxides

Which type of cements is considered less toxic than phosphate cements?

• a) Glass-ionomers
• b) Varnishes
• c) Carboxylic cements
• d) Hardening calcium hydroxide cements