The final evaluation of deficient crowns is made at the gingival level.Gingival vontours may require alteration to:

    1,eliminate residual periodontal defects;

    2,improve symmetry between the maxillary central incisors;

    3,enhance tooth proportion;

    4,achieve a pleasing gingival outline;

    5,reduce excessive gingival display;

    6,facilitate the restorative process.

• Subgingival scaling
• Establishing an aesthetic gingival appearance