CTE - Coefficient of Thermal Expansion - for dental ceramics

[@saeedrkhan1372]

Last one ceramics CTe less than metal.would there be a gap when metal shrinks...

[@markocibula3252]

This is not logical, can you explain again? If cte of metal is higher, it will shrink more during cooling and ceramic will not go along. there will be gap between materials and scenario that you describes as 2. I think 2. and 3. scenario should be reversed. Please help! Thanks

[@Das0000]

Yeah I think like that too

[@matthewguralsky]

Remember, a bond forms between the ceramic and the oxide layer formed on the metal alloy interface. Also, remember that while the CTE of the metal is higher than the ceramic, it is only a small difference. The "pulling force" is enough to compress the ceramic and reinforce it, but not enough to overcome the bond strength of the ceramic and the metal.

[@DoctorGreat1]

Thanks