ed, up to 1 mm above the CEJ/crest of the gingival shroud. or at the level of the CEJ The cervical finish line is over-extended. 0.5 mm below the CEJfcrest of the gingival shroud. or 1-1.5mm occlusal The cervical finish line is over-extended. more than 0.5 mm causing damage. or under-extended > 1.5mm