Which type of impression material has steepness as a disadvantage?

The polyether impression material is characterized by its high viscosity and stiffness, qualities that are indicative of its steepness in handling. This steepness refers to the material’s inability to flow easily, making it more challenging to achieve a precise and detailed impression, particularly in areas with fine detail or undercuts. The rigidity and viscosity can complicate the removal of the impression from the mouth, increasing the risk of distortion or tearing during withdrawal.

While polyether is known for its excellent dimensional stability and accuracy, tooth-like hardness and resistance to deformation, its steepness is often cited as a significant drawback compared to other materials like silicone or polysulfide. These materials tend to offer greater flexibility, facilitating easier removal and better ability to capture intricate details without compromising the shape of the impression. This balance of qualities is crucial in dental practice, as the success of prosthetic work heavily depends on the precision of the impressions taken.