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Questions and Answers
What is one of the indications for using temporary filling materials?
What is one of the indications for using temporary filling materials?
What is a requirement for temporary filling materials?
What is a requirement for temporary filling materials?
What type of temporary filling material is supplied as a powder and a liquid?
What type of temporary filling material is supplied as a powder and a liquid?
What is the benefit of adding fine polymer particles to zinc oxide eugenol?
What is the benefit of adding fine polymer particles to zinc oxide eugenol?
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What is the maximum duration for which zinc oxide eugenol should be used as a temporary filling material?
What is the maximum duration for which zinc oxide eugenol should be used as a temporary filling material?
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What is the benefit of using zinc oxide eugenol as a temporary filling material?
What is the benefit of using zinc oxide eugenol as a temporary filling material?
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What is a type of zinc oxide eugenol that is used for permanent cementation of the restoration?
What is a type of zinc oxide eugenol that is used for permanent cementation of the restoration?
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What is the advantage of zinc phosphate cement over zinc oxide eugenol?
What is the advantage of zinc phosphate cement over zinc oxide eugenol?
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Study Notes
Temporary Filling Materials
- Temporary filling materials are used during treatment of root canal filling, inlay and onlay preparation, after pulp capping, and in pedodontics treatment.
- Requirements for temporary filling materials include:
- Easy removal from the cavity
- Sedative effect on the tooth
- Reasonable strength and abrasive resistance
- Radiopacity
- Reasonable setting time and flow after setting
Types of Temporary Filling Materials
- Zinc oxide eugenol (ZOE)
- Zinc phosphate (ZP)
- Zinc-silico phosphate (ZSP)
- Gutta percha (G.P)
Zinc Oxide Eugenol (ZOE)
- According to ADA specification, there are four types of ZOE:
- Type 1: temporary cementation
- Type 2: permanent cementation of the restoration
- Type 3: temporary filling
- Type 4: cavity liner (base)
- Supplied as:
- Powder: zinc oxide, zinc acetate
- Liquid: olive oil, eugenol
- Mixing according to manipulation instructions
- Or as 2 pastes or 1 paste
- Properties:
- Sedative effect on the teeth
- Reasonable sealing of the cavity
- Low strength
- Low abrasive resistance
- Low flow after setting
- Should not be placed for more than a few days to a few weeks
- Can be improved by adding 20-40 wt% of fine polymer particles and treating the surface of zinc oxide particles with carboxylic acid (reinforced ZOE type)
- Sufficient powder should be added to the liquid to achieve putty consistency
Zinc Phosphate Cement
- Comes as powder and liquid
- Properties:
- Higher strength and abrasive resistance than ZOE
- Relatively low solubility in oral fluids
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Description
This quiz covers the indications and requirements of temporary filling materials in dentistry, including root canal filling, inlay and onlay preparation, pulp capping, and pedodontics treatment.
