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Preparation Instruction

General Indications

Pronounced chamfer (90°)

Shoulder preparation with rounded ario-cervical line angle.

Circular marginal cutting at least 1 mm.

Anterior preparations.

Axial and incisal reduction.

Palatal reduction.

Occlusal substance reduction at least 1.5 mm.

Axial substance reduction at least 1 mm.

120°–140° opening angle of the occlusal surfaces. The cone angle of the corresponding axial surfaces should be 3°–4°.

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