Bài 11

The word curettage is used in periodontics to mean the scraping of the gingival wall of a periodontal pocket to remove:

• Calculus.

• Diseased soft tissue.

• Dental plaque.

• Biofilm.

In periodontics, scaling refers to the removal of deposits from the root surface, whereas planning means smoothing the root to remove:

• Infected and necrotic tooth substance.

• Connective tissue.

• Calculus, dental plaque.

• Bacteria and it toxins.

Gingival curettage accomplishes the removal of the chronically inflamed granulation tissue that forms in

• Periodontal pocket.

• Root surface.

• Root furcation.

• Root apex.

In patients with periodontitis, the inflamed granulation tissue is lined by epithelium, and deep strands of epithelium penetrate into the tissue. The presence of this epithelium is construed as:

• Necessary for healing in soft tissue.

• A promoting factor of the attachment of new fibers in the area.

• A barrier to the attachment of new fibers in the area.

• Necessary for healing in bone tissue.

In an anterior esthetic zone, gingival curettage may result in:

• More shrinkage than compared to root planning alone.

• Gingival enlargement in anterior esthetic zone.

• Gingival pocket increasing in anterior esthetic zone.

• Periodontal pocket increasing in anterior esthetic zone.

Gingival curettage can be attempted to reduce inflammation when aggressive surgical techniques (e.g., flaps) are contraindicated in patients as a result of their:

1) Age.

2) Systemic problems.

3) Psychologic problems.

4) The level of calculus and dental plaque.

• (1), (2), (4)

• (1), (2), (3)

• (2). (3), (4)

• (1), (3), (4)

Gingival curettage is also frequently performed on recall visits as a method of maintenance treatment for areas of:

1) Chronic gingivitis.

2) Recurrent pericoronitis in mandibular third molar.

3) Recurrent inflammation and pocket depth,

4) Pocket reduction surgery has previously been performed.

• (1), (2)

• (2), (3)

• (3), (4)

• (1), (4)

Gingival curettage does not eliminate the causes of inflammation (i.e., bacterial plaque and deposits). Therefore, curettage should always be preceded by:

• Tooth removal.

• Conducting plaque control.

• Scaling and root planning.

• Treatment of pericoronitis.

Gingival curettage will always require:

• Instruction oral hygiene.

• Instruction plaque control.

• Some type of local anesthesia.

• Extraction.

In gingival curettage, the curette is selected so that:

• The cutting edge is against the gingival tissue.

• The cutting edge is against the root.

• The cutting edge is against the tooth.

• The cutting edge is against the tooth and the root.