- What are the key properties of Zinc Oxide Eugenol Impression Material (ZOIM) that make it suitable for dental impressions?
- Describe the composition of ZOIM, including the constituents of both the base and accelerator pastes.
- How is ZOIM manipulated before recording an impression? Discuss the recommended technique.
- What are the advantages and disadvantages of using ZOIM for dental impressions?
- Explain the application of ZOIM in complete denture fabrication, highlighting its role in final impressions.
- What precautions should be taken when disinfecting ZOIM impressions, and what is the recommended disinfection method?
- Discuss the modifications of ZOIM formulations to address the undesirable properties of eugenol.
- How does ZOIM differ from elastic impression materials in terms of elasticity and recording undercut areas?
- Describe the chemical setting reaction of ZOIM and its dependence on moisture and temperature.
- What are the potential patient sensations associated with ZOIM, and how can they be managed effectively?
- What is the significance of the pink color in the accelerator paste of ZOIM?
- Discuss the role of zinc oxide in ZOIM and its contribution to the setting reaction.
- How does the working time of ZOIM compare to other impression materials, and why is it important?
- Explain the term “mucostatic” as it relates to ZOIM and its implications for impression accuracy.
- Describe the procedure for mixing ZOIM pastes to achieve a homogenous consistency.
- What factors can affect the dimensional stability of ZOIM impressions, and how can they be minimized?
- Discuss the storage requirements for ZOIM impressions to maintain their accuracy over time.
- How does ZOIM adhere to dried special trays, and why is this property important?
- Compare and contrast the properties of ZOIM with those of elastomeric impression materials.
- What are the indications for using ZOIM in dental practice, and when might it be contraindicated?
- Describe the chemical reaction that occurs between eugenol and zinc oxide in ZOIM.
- How does ZOIM contribute to the creation of occlusal rims in jaw registration?
- Explain how modifications of ZOIM formulations address the unpleasant odor associated with eugenol.
- Discuss the role of eugenol in ZOIM and its potential biological effects on patients.
- What precautions should be taken when handling ZOIM to minimize potential allergic reactions?
- Describe the technique for disinfecting ZOIM impressions, and why it is necessary.
- How does ZOIM differ in its application for final impressions compared to preliminary impressions?
- Discuss the role of ZOIM in creating functional impressions for complete denture fabrication.
- Explain the mechanism by which ZOIM achieves adhesion to dried special trays.
- What are the common modifications made to ZOIM formulations to improve their properties?