Zinc Phosphate Dental Cement Concepts

This video provides an overview of zinc phosphate dental cement, covering its dispensing forms, composition, properties, clinical applications, and potential adverse reactions. The cement is available in powder and liquid forms, and its main components are zinc oxide and phosphoric acid. It has low thermal conductivity and forms a mechanical bond with teeth. Clinically, it is used as a cavity liner and for crown cementation, though newer materials are often preferred. Adverse reactions include cytotoxic effects on dental pulp. The video concludes with a request for viewer feedback.

What is the primary classification of zinc phosphate dental cement?

• Based on phosphoric acids

• Based on acrylic acids

• Based on hydrochloric acids

• Based on sulfuric acids

In what forms is zinc phosphate dental cement commonly available?

• Gels and pastes

• Tablets and capsules

• Sprays and aerosols

• Powder and liquid bottles

What is the main ingredient in the powder component of zinc phosphate dental cement?

• Silicon dioxide

• Calcium carbonate

• Aluminum oxide

• Zinc oxide

What is the initial setting time for zinc phosphate dental cement?

• 2 minutes

• 5 minutes

• 15 minutes

• 10 minutes

Which property of zinc phosphate dental cement makes it suitable for use under metallic restorations?

• Low thermal conductivity

• Low mechanical strength

• High thermal conductivity

• High chemical reactivity

What type of bond does zinc phosphate dental cement form with tooth structure?

• Chemical bond

• Covalent bond

• Ionic bond

• Mechanical bond

Which of the following is NOT released by zinc phosphate dental cement?

• Preventive agents

• Fluoride

• Therapeutic agents

• Eugenol

For what purpose is zinc phosphate dental cement used in dentistry?

• As a permanent filling material

• For crown and bridge cementation

• As a bleaching agent

• For tooth extraction

What is a potential adverse reaction of zinc phosphate dental cement?

• Tooth whitening

• Pulp necrosis

• Gum inflammation

• Tooth decay

What causes the cytotoxic reactions associated with zinc phosphate dental cement?

• High pH during setting

• Low pH and exothermic reaction

• Presence of fluoride

• Presence of eugenol