Bài 2

Necrotizing ulcerative gingivitis (NUG) is a microbial disease of the gingiva in the context of:

• An impaired host response.

• A strong host response.

• A normal host response.

• A patient with dental caries.

Necrotizing ulcerative gingivitis (NUG) is characterized by:

(1) The necrosis and sloughing of gingival tissue.

(2) Characteristic signs and symptoms.

(3) Malocclusion.

(4) There is a fistula in the gums

• A. (1), (3)
  

• B. (1), (4)
  

• C. (1), (2)
  

• D. (2), (4)
  

In patients with necrotizing ulcerative gingivitis, characteristic lesions are punched-out, crater-like depressions at the crest of the interdental papillae that subsequently extend to:

• The marginal gingiva and rarely to the attached gingiva and oral mucosa.

• The marginal gingival and tongue, not involve the oral mucosa.

• The marginal gingival and upper lip, not involve the oral mucosa.

• The marginal gingival and lower lip, not involve the oral mucosa.

In patients with necrotizing ulcerative gingivitis, the lesions are extremely sensitive to touch, and the patient often complains of a constant radiating, gnawing pain that is intensified by:

• Smiling and eating hot foods

• Eating spicy – hot foods and speaking

• Eating hot foods and speaking.

• Eating spicy – hot foods and chewing

Diagnosis of necrotizing ulcerative gingivitis is based on:

• Clinical findings of gingival pain, ulceration, and bleeding.

• A bacterial smear in gingival fluid and hematology test.

• Gingival bleeding when examined by dentists.

• Gingival pocket when examined by dentists.

Necrotizing ulcerative gingivitis was caused by:

• Herpes simplex virus (HSV) type 1 and Tannerella

• Specific bacteria: fusiform bacillus and a spirochetal organism.

• A. Actinomycetemcomitans and Fusobacterium nucleatum

• Herpes simplex virus and Spirochetes

Acute herpetic gingiva-stomatitis is the primary infection of the oral cavity caused by:

• Specific bacteria: fusiform bacillus and a spirochetal organism.

• A. Actinomycetemcomitans and Fusobacterium nucleatum

• Herpes simplex virus (HSV) type 1.

• An impaired host response.

Acute herpetic gingivostomatitis is the primary infection of the oral cavity, it occurs most often among:

• Infants and children who are less than 6 years old.

• Adults, adolescents

• Infants and children who are less than 18 years old

• Females, elderly.

During initial stage of primary herpetic gingiva-stomatitis, it is characterized by the presence of discrete, spherical gray vesicles, which may occur on:

• The gingiva, the labial and buccal mucosae, the soft palate, the pharynx, the sublingual mucosa, and the tongue.

• The hard palate, the soft palate, the pharynx, the sublingual mucosa, and the tongue.

• Upper lip, lower lip, the hard palate, the soft palate, the pharynx.

• Lower lip, the hard palate, the soft palate, the pharynx, the tongue.

In primary herpetic gingivostomatitis, the ruptured vesicles are:

(1) The focal sites of pain.

(2) Particularly sensitive to touch, thermal changes.

(3) Particularly sensitive to foods such as condiments and fruit juices, and the

action of coarse foods.

(4) the oral mucosa ulcerated and many white pseudo – membranes

• (1), (2), (4)
  

• (1), (3), (4)
  

• (1), (2), (3)
  

• (2), (3), (4)