Plaque induced gingivitis

What is plaque induced gingivitis?

Plaque-induced Gingivitis is an inflammatory response of the gingivae to plaque bacteria.

The most common type of this is chronic marginal gingivitis.

Symptoms and clinical features of gingivitis

  • Chronic gingivitis is asymptomatic, low-grade inflammation of the gingivae
  • Gums become red slightly swollen and bleed on slight touch

Treatment for plaque induced gingivitis

Non-drug treatment

  1. Oral hygiene instructions should be given to patients
  2. Scaling and polishing should be done.
  3. Use antiseptic mouthwashes
    • e.g. chlorhexidine gluconate 2% three times daily for 1-2 weeks
    • Hexetidine mouthwashes to alternate with warm saline mouthwashes

Drug treatment

A. Analgesics


Adult: 1g orally every 8hours for 3-5days


  • 1-5years: 125-250mg,
  • 6-12 years 250-500mg orally every 8 hours

B. Antibiotics


Adult: 250 mg orally every 8 hours for 5 days


  • 1 month – 1 year: 62.5 mg orally every 8 hours; dose doubled in severe infections
  • 1-5 years: 125 mg every 8 hours;
  • 5-12 years: 250mg 8 hourly;
  • 12 – 18 years: 500 mg 8 hourly; all doses doubled in severe infections


Adult: 200 mg orally every 8 hours for 5 days


  • 1-3years: 50 mg orally every 8 hours for 3 days;
  • 3-7 years: 100 mg every 12 hours;
  • 7-10 years: 100 mg every 8 hours.

Adverse drug reactions, caution

Metronidazole: nausea, vomiting and metallic taste. It is contraindicated in pregnancy.

Avoid alcohol during treatment with metronidazole, and for at least 48 hours after treatment.

Prevention of gingivitis

  • Oral health education.
  • Scaling and polishing every six months

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