in mean of compressive strength ,tensile strength which is strongest:
- A- resin cement***
- B- zinc phosphate
- C- G.I
The correct answer:
The answer depends on whether you're asking about compressive strength or tensile strength:
Compressive Strength:
- Strongest: Resin cement generally has the highest compressive strength, ranging from 100 to 200 MPa. This means it can withstand a significant amount of pressure before breaking.
- Intermediate: GIC (glass ionomer cement) comes next with a compressive strength of around 80 to 120 MPa.
- Weakest: Zinc phosphate has the lowest compressive strength, typically around 60 to 100 MPa.
Tensile Strength:
- Strongest: Resin cement also wins here, with a tensile strength of around 20 to 50 MPa.
- Intermediate: GIC again falls in the middle with a tensile strength of about 5 to 10 MPa.
- Weakest: Zinc phosphate has the weakest tensile strength, usually around 4 to 8 MPa.
Therefore, depending on the specific property you're interested in:
- For compressive strength, resin cement is the strongest.
- For tensile strength, resin cement is also the strongest.
Various factors:
However, it's important to remember that the choice of cement depends on various factors, not just strength. These include:
- Application: Different cements are better suited for specific uses, such as crown cementation, fillings, or luting.
- Durability: Some cements wear down faster than others.
- Bonding: Some cements bond better to specific tooth structures.
- Cost: Resin cements are generally more expensive than zinc phosphate or GIC.
It's always best to consult with a dentist to determine the most appropriate cement for your specific needs based on the application and desired properties.
