Old anterior tooth

Note:

• Insulate with VITA Modisol again before placing on the model. This way, any material applied in the basal area will not stick to the model.
• Make corrections of the shape starting from the cervical area with OPAQUE DENTINE / DENTINE and ENAMEL.

Note:

Based on the poor thermal conductivity of both materials (Y-TZP and veneering ceramic), higher residual stress can occur in this compound system than is known to typically occur in metal ceramics. This residual thermal stress in the veneering ceramic can be counteracted by means of slow cooling during the last firing cycle to below the transformation temperature of the veneering ceramic (for VITA LUMEX AC, approx. 550 °C).