Podcast
Questions and Answers
What is the pH of the cement after mixing?
What is the pH of the cement after mixing?
Which type of cement is regarded as having excellent biological compatibility with the pulp?
Which type of cement is regarded as having excellent biological compatibility with the pulp?
What is the working time for Glass Ionomer Cement (GIC)?
What is the working time for Glass Ionomer Cement (GIC)?
Which material is recommended for the protection of cement during its maturation?
Which material is recommended for the protection of cement during its maturation?
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What does fluoride release from glass ionomer cements help prevent?
What does fluoride release from glass ionomer cements help prevent?
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What do zinc oxide eugenol cements contain to reduce brittleness and increase working time and strength?
What do zinc oxide eugenol cements contain to reduce brittleness and increase working time and strength?
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What is formed when zinc oxide reacts with eugenol in zinc oxide eugenol cements?
What is formed when zinc oxide reacts with eugenol in zinc oxide eugenol cements?
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Which type of cement is considered suitable for temporary cementation due to its low strength?
Which type of cement is considered suitable for temporary cementation due to its low strength?
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Which component is added to zinc oxide eugenol cements as an accelerator?
Which component is added to zinc oxide eugenol cements as an accelerator?
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What is the setting time for glass ionomer cement?
What is the setting time for glass ionomer cement?
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What role does water play in the proper maturation of Glass Ionomer Cement?
What role does water play in the proper maturation of Glass Ionomer Cement?
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Which type of cement is known for its antibacterial activity and anodyne effect on dental pulp?
Which type of cement is known for its antibacterial activity and anodyne effect on dental pulp?
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Which of the following is the oldest cement and acts as the gold standard by which newer materials are compared?
Which of the following is the oldest cement and acts as the gold standard by which newer materials are compared?
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What are the ideal requirements of dental cements according to Donovan's classification?
What are the ideal requirements of dental cements according to Donovan's classification?
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Which type of cement is known for its adhesion to enamel and dentine?
Which type of cement is known for its adhesion to enamel and dentine?
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Which property is NOT an ideal requirement of dental cements according to Donovan?
Which property is NOT an ideal requirement of dental cements according to Donovan?
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What is the main function of dental cements?
What is the main function of dental cements?
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Which cement is known for its obtundent effect on pulp?
Which cement is known for its obtundent effect on pulp?
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Which type of cement is considered as one of the contemporary cements?
Which type of cement is considered as one of the contemporary cements?
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Which cement is not classified under conventional cements according to Donovan's classification?
Which cement is not classified under conventional cements according to Donovan's classification?
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What are the two contemporary cements mentioned in the text?
What are the two contemporary cements mentioned in the text?
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Which cement is known for its adhesion to enamel and dentine?
Which cement is known for its adhesion to enamel and dentine?
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What is the main cause of concern regarding the setting reaction of zinc phosphate cement?
What is the main cause of concern regarding the setting reaction of zinc phosphate cement?
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What is the role of buffers in reducing the risk of pulpal inflammation during the setting reaction of zinc phosphate cement?
What is the role of buffers in reducing the risk of pulpal inflammation during the setting reaction of zinc phosphate cement?
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How does sandblasting the fitting surface of the cast restoration prior to luting affect the retention of zinc phosphate cement?
How does sandblasting the fitting surface of the cast restoration prior to luting affect the retention of zinc phosphate cement?
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What is a notable disadvantage of including fluoride into zinc phosphate cement?
What is a notable disadvantage of including fluoride into zinc phosphate cement?
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In what scenario would a runny mix of zinc phosphate cement have a pH as low as 3?
In what scenario would a runny mix of zinc phosphate cement have a pH as low as 3?
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What is a unique advantage of zinc polycarboxylate cement over zinc phosphate cement in terms of retention?
What is a unique advantage of zinc polycarboxylate cement over zinc phosphate cement in terms of retention?
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What is a distinctive feature of poly(acrylic acid) chains in zinc polycarboxylate cement?
What is a distinctive feature of poly(acrylic acid) chains in zinc polycarboxylate cement?
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What is a notable difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
What is a notable difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
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What distinguishes zinc polycarboxylate cement from zinc phosphate cement in terms of cario-static properties?
What distinguishes zinc polycarboxylate cement from zinc phosphate cement in terms of cario-static properties?
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Which statement accurately describes the compressive strength of zinc polycarboxylate and zinc phosphate cements?
Which statement accurately describes the compressive strength of zinc polycarboxylate and zinc phosphate cements?
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What is a significant difference between the mode of retention in zinc polycarboxylate and zinc phosphate cements?
What is a significant difference between the mode of retention in zinc polycarboxylate and zinc phosphate cements?
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What is the chemical reaction of zinc phosphate cement considered to be?
What is the chemical reaction of zinc phosphate cement considered to be?
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What is the Type I lute thickness for zinc phosphate cement?
What is the Type I lute thickness for zinc phosphate cement?
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What are the two methods used by manufacturers to reduce the potential risk of pulpal inflammation during the setting reaction of zinc phosphate cement?
What are the two methods used by manufacturers to reduce the potential risk of pulpal inflammation during the setting reaction of zinc phosphate cement?
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What is the main function of zinc phosphate cements?
What is the main function of zinc phosphate cements?
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What is the pH of the cement after mixing?
What is the pH of the cement after mixing?
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What is the role of fluoride in zinc phosphate cement?
What is the role of fluoride in zinc phosphate cement?
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What is a notable disadvantage of including fluoride into zinc phosphate cement?
What is a notable disadvantage of including fluoride into zinc phosphate cement?
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What is the mode of retention in zinc phosphate cement?
What is the mode of retention in zinc phosphate cement?
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What is the main retention source in zinc polycarboxylate cement?
What is the main retention source in zinc polycarboxylate cement?
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What is the compressive strength of zinc polycarboxylate cement compared to zinc phosphate cement?
What is the compressive strength of zinc polycarboxylate cement compared to zinc phosphate cement?
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What is a significant difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
What is a significant difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
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What is the distinctive feature of poly(acrylic acid) chains in zinc polycarboxylate cement?
What is the distinctive feature of poly(acrylic acid) chains in zinc polycarboxylate cement?
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What is the main risk associated with the setting reaction of zinc phosphate cements?
What is the main risk associated with the setting reaction of zinc phosphate cements?
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How do manufacturers attempt to reduce the risk of pulpal inflammation caused by the setting reaction of zinc phosphate cements?
How do manufacturers attempt to reduce the risk of pulpal inflammation caused by the setting reaction of zinc phosphate cements?
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What role does fluoride play when included in zinc phosphate cement?
What role does fluoride play when included in zinc phosphate cement?
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Why should sandblasting be performed on the fitting surface of cast restoration prior to luting with zinc phosphate cement?
Why should sandblasting be performed on the fitting surface of cast restoration prior to luting with zinc phosphate cement?
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What is the minimum film thickness for Type I zinc phosphate cement luting?
What is the minimum film thickness for Type I zinc phosphate cement luting?
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What is formed when zinc oxide and poly(acrylic acid) come into contact in zinc polycarboxylate cement?
What is formed when zinc oxide and poly(acrylic acid) come into contact in zinc polycarboxylate cement?
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How does polyacrylic acid contribute to the mode of retention in zinc polycarboxylate cement?
How does polyacrylic acid contribute to the mode of retention in zinc polycarboxylate cement?
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Why is it recommended not to store the liquid component of zinc polycarboxylate cement in the fridge?
Why is it recommended not to store the liquid component of zinc polycarboxylate cement in the fridge?
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What is a disadvantage of zinc polycarboxylate cement compared to zinc phosphate cement?
What is a disadvantage of zinc polycarboxylate cement compared to zinc phosphate cement?
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What type of adhesion does zinc polycarboxylate cement exhibit towards tooth structure?
What type of adhesion does zinc polycarboxylate cement exhibit towards tooth structure?
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What effect does the addition of fluoride have on mechanical properties of zinc polycarboxylate cement?
What effect does the addition of fluoride have on mechanical properties of zinc polycarboxylate cement?
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What are the ideal requirements of dental cements according to Donovan's classification?
What are the ideal requirements of dental cements according to Donovan's classification?
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What distinguishes zinc polycarboxylate cement from zinc phosphate cement in terms of cario-static properties?
What distinguishes zinc polycarboxylate cement from zinc phosphate cement in terms of cario-static properties?
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What is the main function of dental cements?
What is the main function of dental cements?
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What is the pH of the cement after mixing?
What is the pH of the cement after mixing?
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What is the role of buffers in reducing the risk of pulpal inflammation during the setting reaction of zinc phosphate cement?
What is the role of buffers in reducing the risk of pulpal inflammation during the setting reaction of zinc phosphate cement?
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What is the setting time for glass ionomer cement?
What is the setting time for glass ionomer cement?
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What is the distinctive feature of poly(acrylic acid) chains in zinc polycarboxylate cement?
What is the distinctive feature of poly(acrylic acid) chains in zinc polycarboxylate cement?
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What is a notable difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
What is a notable difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
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What is the main cause of concern regarding the setting reaction of zinc phosphate cement?
What is the main cause of concern regarding the setting reaction of zinc phosphate cement?
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What is a unique advantage of zinc polycarboxylate cement over zinc phosphate cement in terms of retention?
What is a unique advantage of zinc polycarboxylate cement over zinc phosphate cement in terms of retention?
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What is the working time for Glass Ionomer Cement (GIC)?
What is the working time for Glass Ionomer Cement (GIC)?
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What distinguishes zinc polycarboxylate cement from zinc phosphate cement in terms of antibacterial activity and anodyne effect on dental pulp?
What distinguishes zinc polycarboxylate cement from zinc phosphate cement in terms of antibacterial activity and anodyne effect on dental pulp?
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What is the working time for Glass Ionomer Cement (GIC)?
What is the working time for Glass Ionomer Cement (GIC)?
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What is the setting time for GIC?
What is the setting time for GIC?
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What is formed when zinc oxide reacts with eugenol in zinc oxide eugenol cements?
What is formed when zinc oxide reacts with eugenol in zinc oxide eugenol cements?
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What are the two contemporary cements mentioned in the text?
What are the two contemporary cements mentioned in the text?
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What is a significant difference between the mode of retention in zinc polycarboxylate and zinc phosphate cements?
What is a significant difference between the mode of retention in zinc polycarboxylate and zinc phosphate cements?
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What is a notable disadvantage of including fluoride into zinc phosphate cement?
What is a notable disadvantage of including fluoride into zinc phosphate cement?
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In what scenario would a runny mix of zinc phosphate cement have a pH as low as 3?
In what scenario would a runny mix of zinc phosphate cement have a pH as low as 3?
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What is the main function of dental cements?
What is the main function of dental cements?
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Which cement is known for its obtundent effect on pulp?
Which cement is known for its obtundent effect on pulp?
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Which type of cement is regarded as having excellent biological compatibility with the pulp?
Which type of cement is regarded as having excellent biological compatibility with the pulp?
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What is a notable difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
What is a notable difference between the erosion resistance of zinc polycarboxylate and zinc phosphate cements?
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What are the ideal requirements of dental cements according to Donovan's classification?
What are the ideal requirements of dental cements according to Donovan's classification?
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The material is generally supplied as zinc oxide powder and ______ acid liquid.
The material is generally supplied as zinc oxide powder and ______ acid liquid.
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The setting reaction of zinc phosphate cements is a two-stage process. 1- The zinc oxide in the powder reacts with the ______ acid in the liquid to form zinc phosphate and water.
The setting reaction of zinc phosphate cements is a two-stage process. 1- The zinc oxide in the powder reacts with the ______ acid in the liquid to form zinc phosphate and water.
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The chemical reaction of zinc phosphate cement is the most exothermic of all the dental cements and so there is a potential risk that the heat produced during the setting reaction could cause ______ inflammation.
The chemical reaction of zinc phosphate cement is the most exothermic of all the dental cements and so there is a potential risk that the heat produced during the setting reaction could cause ______ inflammation.
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There are two methods by which manufacturers attempt to reduce this: (1) By including buffers in the liquid component, (2) Treating the powder by heating it to above ______°C.
There are two methods by which manufacturers attempt to reduce this: (1) By including buffers in the liquid component, (2) Treating the powder by heating it to above ______°C.
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Zinc phosphate cements do not adhere to either tooth tissue or ______ materials.
Zinc phosphate cements do not adhere to either tooth tissue or ______ materials.
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The cement forms tags between the micro-irregularities on the two surfaces being ______.
The cement forms tags between the micro-irregularities on the two surfaces being ______.
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In the clinical scenario, the set cement exposed to the oral environment will be subjected to cyclical changes in pH, which frequently falls below ______.
In the clinical scenario, the set cement exposed to the oral environment will be subjected to cyclical changes in pH, which frequently falls below ______.
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The addition of the fluoride salt does, however weaken the cement because it is present as inclusions which disrupt the ______.
The addition of the fluoride salt does, however weaken the cement because it is present as inclusions which disrupt the ______.
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The mechanical properties of the final cement are dependent on the powder/liquid ratio used. The mechanical properties increase with increased powder content until a point is reached where the material will not mix to a ______ mass.
The mechanical properties of the final cement are dependent on the powder/liquid ratio used. The mechanical properties increase with increased powder content until a point is reached where the material will not mix to a ______ mass.
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Phosphoric acid is highly acidic and for this reason there has been concern that its acidity may have detrimental effects on the ______, such as pulpal inflammation and possibly pulpal death.
Phosphoric acid is highly acidic and for this reason there has been concern that its acidity may have detrimental effects on the ______, such as pulpal inflammation and possibly pulpal death.
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Because of the polyacrylic acid molecules, there is some form of chemical adhesion to the tooth structure. When zinc polycarboxylate cement is used, the bond occurs between the carboxylic acid groups in the liquid polyacrylic acid and the ______ in the tooth structure.
Because of the polyacrylic acid molecules, there is some form of chemical adhesion to the tooth structure. When zinc polycarboxylate cement is used, the bond occurs between the carboxylic acid groups in the liquid polyacrylic acid and the ______ in the tooth structure.
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The cement is prone to erosion as the pH of the mouth becomes more ______.
The cement is prone to erosion as the pH of the mouth becomes more ______.
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Dental cements harden to act as a base, liner, filling, or adhesive to bind prosthesis to the tooth structure. This defines a cement as a substance that ______.
Dental cements harden to act as a base, liner, filling, or adhesive to bind prosthesis to the tooth structure. This defines a cement as a substance that ______.
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According to Donovan, the ideal requirements of dental cements include being non-toxic, nonirritant to pulp and tissue, insoluble, and having good ______ properties.
According to Donovan, the ideal requirements of dental cements include being non-toxic, nonirritant to pulp and tissue, insoluble, and having good ______ properties.
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Zinc phosphate cement is regarded as the gold standard by which newer materials are ______.
Zinc phosphate cement is regarded as the gold standard by which newer materials are ______.
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Contemporary cements include resin modified GIC and resin ______.
Contemporary cements include resin modified GIC and resin ______.
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Zinc oxide eugenol cements are known for their ______ effect on pulp.
Zinc oxide eugenol cements are known for their ______ effect on pulp.
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Glass Ionomer Cement is known for its adhesion to enamel and ______.
Glass Ionomer Cement is known for its adhesion to enamel and ______.
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Zinc polycarboxylate cement is regarded as having excellent biological compatibility with the ______.
Zinc polycarboxylate cement is regarded as having excellent biological compatibility with the ______.
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Fluoride release from glass ionomer cements helps prevent ______.
Fluoride release from glass ionomer cements helps prevent ______.
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The chemical reaction of zinc phosphate cement is considered to be ______.
The chemical reaction of zinc phosphate cement is considered to be ______.
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Polyacrylic acid contributes to the mode of retention in zinc polycarboxylate cement through its ______ properties.
Polyacrylic acid contributes to the mode of retention in zinc polycarboxylate cement through its ______ properties.
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Zinc phosphate cement is known for its ______ effect on pulp.
Zinc phosphate cement is known for its ______ effect on pulp.
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When included in zinc phosphate cement, fluoride has a notable ______ effect.
When included in zinc phosphate cement, fluoride has a notable ______ effect.
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Glass Ionomer Cement (GIC) sets rapidly in the mouth, within 3-5 minutes, and hardens to form a body having translucency that matches enamel. The setting time for GIC is ________
Glass Ionomer Cement (GIC) sets rapidly in the mouth, within 3-5 minutes, and hardens to form a body having translucency that matches enamel. The setting time for GIC is ________
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Zinc Oxide Eugenol Cements are available for both temporary cementation and permanent fixation of metallic and metallo-ceramic crowns and bridges. Due to an inhibitory effect of eugenol on polymerization of methacrylate-based resins and luting composites, temporary cements using nonphenolic components are often preferred over conventional formulations. Their popularity is justified by their ease of use, antibacterial action, and ______ effect on dental pulp.
Zinc Oxide Eugenol Cements are available for both temporary cementation and permanent fixation of metallic and metallo-ceramic crowns and bridges. Due to an inhibitory effect of eugenol on polymerization of methacrylate-based resins and luting composites, temporary cements using nonphenolic components are often preferred over conventional formulations. Their popularity is justified by their ease of use, antibacterial action, and ______ effect on dental pulp.
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Reinforced ZOE cements, such as EBA-eugenol cements, may be used in crown cementation, temporary dressing, or as a cavity liner. EBA-eugenol cements can be several times stronger than the basic formulation of zinc oxide eugenol, with a compression strength of 72 MPa versus 26 MPa at room temperature. EBA-alumina cements can present 20% higher strength compared to EBA-eugenol materials. EBA-eugenol cements are reinforced with ______ acid (EBA).
Reinforced ZOE cements, such as EBA-eugenol cements, may be used in crown cementation, temporary dressing, or as a cavity liner. EBA-eugenol cements can be several times stronger than the basic formulation of zinc oxide eugenol, with a compression strength of 72 MPa versus 26 MPa at room temperature. EBA-alumina cements can present 20% higher strength compared to EBA-eugenol materials. EBA-eugenol cements are reinforced with ______ acid (EBA).
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The metabolism of the bacteria that cause caries is inhibited and the resistance of enamel and dentine is increased due to the remineralization of porous or softened enamel and dentine. Sustained, long-term fluoride release, especially in marginal gaps between filling material and tooth, helps prevent secondary caries of dental tissue. For conventional GIC, an initial release of up 10 ppm and constant long-term release of 1 to 3 ppm over 100 months was reported. Aesthetic: Glass ionomer has got a degree of translucency because of its glass filler. Unlike resin, glass ionomer will not be affected by oral fluids. Because of slow hydration reaction, glass ionomer cements take at least 24 hrs. to fully mature and develop ______.
The metabolism of the bacteria that cause caries is inhibited and the resistance of enamel and dentine is increased due to the remineralization of porous or softened enamel and dentine. Sustained, long-term fluoride release, especially in marginal gaps between filling material and tooth, helps prevent secondary caries of dental tissue. For conventional GIC, an initial release of up 10 ppm and constant long-term release of 1 to 3 ppm over 100 months was reported. Aesthetic: Glass ionomer has got a degree of translucency because of its glass filler. Unlike resin, glass ionomer will not be affected by oral fluids. Because of slow hydration reaction, glass ionomer cements take at least 24 hrs. to fully mature and develop ______.
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The chemical reaction of zinc phosphate cement is the most exothermic of all the dental cements, and so there is a potential risk that the heat produced during the setting reaction could cause ______ inflammation.
The chemical reaction of zinc phosphate cement is the most exothermic of all the dental cements, and so there is a potential risk that the heat produced during the setting reaction could cause ______ inflammation.
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Eugenol released from the salt matrix may contribute to pain relief in preparations with little remaining dentin thickness. However, in high concentrations or when placed directly in contact with connective tissue, it may increase the inflammatory response because of its ______.
Eugenol released from the salt matrix may contribute to pain relief in preparations with little remaining dentin thickness. However, in high concentrations or when placed directly in contact with connective tissue, it may increase the inflammatory response because of its ______.
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According to Donovan, the ideal requirements of dental cements include being non-toxic, nonirritant to pulp and tissue, insoluble, and having good ______ properties.
According to Donovan, the ideal requirements of dental cements include being non-toxic, nonirritant to pulp and tissue, insoluble, and having good ______ properties.
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The biological compatibility of the cement with the pulp is regarded as being excellent. There is some release of zinc fluoride and poly(acrylic acid), but these do not appear to affect the tissues in clinical use. This cement continues to maintain some presence in the marketplace because it offers good biocompatibility with pulp tissue. Advantages include not releasing fluoride, bonding to enamel, dentine, and alloys, low irritation, and easy manipulation. Disadvantages include short mixing/working times, sensitivity to manipulation techniques, and lower compressive strength when compared to zinc phosphate. This cement is used for the cementation of metal crowns and bridges, and it does not bond well to untreated gold restorations. This description is for ______ cement.
The biological compatibility of the cement with the pulp is regarded as being excellent. There is some release of zinc fluoride and poly(acrylic acid), but these do not appear to affect the tissues in clinical use. This cement continues to maintain some presence in the marketplace because it offers good biocompatibility with pulp tissue. Advantages include not releasing fluoride, bonding to enamel, dentine, and alloys, low irritation, and easy manipulation. Disadvantages include short mixing/working times, sensitivity to manipulation techniques, and lower compressive strength when compared to zinc phosphate. This cement is used for the cementation of metal crowns and bridges, and it does not bond well to untreated gold restorations. This description is for ______ cement.
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The cement’s pH returns to neutral within a short period of time after mixing, and the cement is less acidic than zinc phosphate. The biological compatibility of the cement with the pulp is regarded as being excellent. There is some release of zinc fluoride and poly(acrylic acid), but these do not appear to affect the tissues in clinical use. This cement continues to maintain some presence in the marketplace because it offers good biocompatibility with pulp tissue. Advantages include not releasing fluoride, bonding to enamel, dentine, and alloys, low irritation, and easy manipulation. Disadvantages include short mixing/working times, sensitivity to manipulation techniques, and lower compressive strength when compared to ______.
The cement’s pH returns to neutral within a short period of time after mixing, and the cement is less acidic than zinc phosphate. The biological compatibility of the cement with the pulp is regarded as being excellent. There is some release of zinc fluoride and poly(acrylic acid), but these do not appear to affect the tissues in clinical use. This cement continues to maintain some presence in the marketplace because it offers good biocompatibility with pulp tissue. Advantages include not releasing fluoride, bonding to enamel, dentine, and alloys, low irritation, and easy manipulation. Disadvantages include short mixing/working times, sensitivity to manipulation techniques, and lower compressive strength when compared to ______.
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The cement forms tags between the micro-irregularities on the two surfaces being ______.
The cement forms tags between the micro-irregularities on the two surfaces being ______.
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The mechanical properties of the final cement are dependent on the powder/liquid ratio used. The mechanical properties increase with increased powder content until a point is reached where the material will not mix to a ______ mass.
The mechanical properties of the final cement are dependent on the powder/liquid ratio used. The mechanical properties increase with increased powder content until a point is reached where the material will not mix to a ______ mass.
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According to Donovan, the ideal requirements of dental cements include being non-toxic, nonirritant to pulp and tissue, insoluble, and having good ______ properties.
According to Donovan, the ideal requirements of dental cements include being non-toxic, nonirritant to pulp and tissue, insoluble, and having good ______ properties.
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The cement is generally supplied as zinc oxide powder and ______ acid liquid.
The cement is generally supplied as zinc oxide powder and ______ acid liquid.
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