Antibiotics in Periodontology Quiz
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Questions and Answers

What is the cardinal rule when using antibiotics?

  • Use as little as possible
  • Skip doses to avoid resistance
  • Maintain high blood pressure
  • Use the correct dosing schedule (correct)

Why is a loading dose recommended for antibiotics?

  • To reduce the risk of side effects
  • To save money on medication
  • To achieve therapeutic blood levels quickly (correct)
  • To prevent bacterial resistance

What is the role of antibiotic therapy in periodontal disease?

  • To enhance the taste of food
  • To remove plaque from teeth
  • To reduce the production of saliva
  • To eliminate bacteria associated with the disease (correct)

What is the mechanism of action of tetracyclines in periodontal therapy?

<p>Inhibit cell wall synthesis (A)</p> Signup and view all the answers

Which antibiotic is known for its broad spectrum of activity and bacteriostatic properties in periodontal therapy?

<p>Tetracycline (B)</p> Signup and view all the answers

What are the common pathogens associated with gingivitis?

<p>Fuso, strep, &amp; actinomycetes (B)</p> Signup and view all the answers

What is the definition of an antibiotic?

<p>A substance that kills or inhibits the growth of microorganisms (D)</p> Signup and view all the answers

What is the term for an antimicrobial that acts on a limited number of microbial species?

<p>Narrow Spectrum Antimicrobial (D)</p> Signup and view all the answers

Which term refers to a substance that kills or destroys microorganisms by inhibiting their growth?

<p>Microcidal (A)</p> Signup and view all the answers

What is the action of a Microstatic antimicrobial?

<p>The organism is reversibly inhibited at specific metabolic processes (C)</p> Signup and view all the answers

Which term refers to an antimicrobial that acts on a wide range of species?

<p>Broad Spectrum Antimicrobial (C)</p> Signup and view all the answers

What is the definition of chemotherapy in the context of antibiotics?

<p>A treatment of systemic infections with specific drugs (D)</p> Signup and view all the answers

Which antibiotic is considered a choice for treating periodontal abscesses?

<p>Metronidazole (D)</p> Signup and view all the answers

What is the most common adverse effect of Metronidazole?

<p>Metallic taste (D)</p> Signup and view all the answers

Which antibiotic is contraindicated in the first trimester of pregnancy?

<p>Tetracycline HCl (D)</p> Signup and view all the answers

Which antibiotic is known for its potent bacteriostatic activity against strict anaerobes?

<p>Clindamycin (D)</p> Signup and view all the answers

Which antibiotic can induce ulcerative colitis as an adverse effect?

<p>Clindamycin (D)</p> Signup and view all the answers

Which antibiotic has weak activity against A.A., Eikenella, and Fusobacterium?

<p>Erythromycin (C)</p> Signup and view all the answers

Which systemic antibiotic regimen is considered more effective than a single agent for treating aggressive and recurrent periodontitis?

<p>$Amoxicillin (500 mg TID) and metronidazole (250 mg TID) for 8 days$ (A)</p> Signup and view all the answers

What is the advantage of local delivery devices for antibiotics in periodontal treatment?

<p>$Bypasses the metabolism by the liver$ (C)</p> Signup and view all the answers

Antibiotics are primarily used to promote the growth of microorganisms.

<p>False (B)</p> Signup and view all the answers

Chemotherapy involves the treatment of systemic infections with drugs that selectively suppress the infecting microorganism without significantly affecting the host.

<p>True (A)</p> Signup and view all the answers

An antimicrobial refers to both antibiotics and synthetic agents active against microbes.

<p>True (A)</p> Signup and view all the answers

Microcidal agents inhibit the growth of microorganisms by reversibly inhibiting specific metabolic processes.

<p>False (B)</p> Signup and view all the answers

Narrow Spectrum Antimicrobials act on a wide range of microbial species.

<p>False (B)</p> Signup and view all the answers

Broad Spectrum Antimicrobials inhibit the growth of a limited number of microbial species.

<p>False (B)</p> Signup and view all the answers

Tetracyclines are considered bactericidal antibiotics.

<p>False (B)</p> Signup and view all the answers

Metronidazole is relatively ineffective in suppressing A. actinomycetemcomitans.

<p>True (A)</p> Signup and view all the answers

Amoxicillin in combination with clavulonic acid is not indicated in the presence of oral bacteria capable of producing β-lactamase.

<p>False (B)</p> Signup and view all the answers

Doxycycline has more patient compliance than tetracycline due to its once-daily dosing.

<p>True (A)</p> Signup and view all the answers

Penicillin G is considered a broad-spectrum antibiotic.

<p>False (B)</p> Signup and view all the answers

Erythromycin is effective against Gram-negative bacteria such as Legionella and Mycoplasma.

<p>True (A)</p> Signup and view all the answers

Ciprofloxacin is effective in the treatment of periodontal super infections caused by enteric bacteria, pseudomonas, or staphylococci.

<p>True (A)</p> Signup and view all the answers

Clindamycin has weak activity against facultative pathogens like A.a. and Eikenella.

<p>False (B)</p> Signup and view all the answers

Erythromycin reaches effective concentrations in gingival fluid and has strong activity against A.A., Eikenella, and Fusobacterium.

<p>False (B)</p> Signup and view all the answers

Azithromycin is primarily bacteriostatic and has a narrow spectrum of activity.

<p>False (B)</p> Signup and view all the answers

Tetracycline HCl for 21 days is one of the most effective regimens for treating aggressive and recurrent periodontitis.

<p>False (B)</p> Signup and view all the answers

Local delivery devices for antibiotics in periodontal treatment have limitations including dose limitation due to a relatively small area.

<p>True (A)</p> Signup and view all the answers

Local delivery devices for antibiotics bypass the metabolism by the liver, making them a safe and convenient route of administration.

<p>True (A)</p> Signup and view all the answers

Systemic antibiotics rarely enhance the treatment of chronic periodontitis.

<p>True (A)</p> Signup and view all the answers

Flashcards

Antibiotic Dosing Cardinal Rule

Using the correct schedule ensures effective treatment and prevents resistance.

Loading Dose Rationale

Achieves therapeutic blood levels rapidly to combat infection quickly.

Antibiotic Role in Periodontal Disease

To eliminate bacteria associated with the disease, aiding in healing.

Tetracycline Mechanism

Inhibit cell wall synthesis, preventing bacterial growth and replication.

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Broad-Spectrum, Bacteriostatic Antibiotic

Tetracycline

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Gingivitis Pathogens

Fuso, strep, & actinomycetes are commonly associated with gingivitis.

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Antibiotic Definition

A substance that kills or inhibits the growth of microorganisms.

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Narrow Spectrum Antimicrobial

An antimicrobial that acts on a limited number of microbial species.

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Microcidal

A substance that kills or destroys microorganisms by inhibiting their growth.

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Microstatic Action

The organism is reversibly inhibited at specific metabolic processes.

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Broad Spectrum Antimicrobial

An antimicrobial that acts on a wide range of species.

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Chemotherapy (Antibiotic Context)

A treatment of systemic infections with specific drugs.

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Antibiotic for Periodontal Abscesses

Metronidazole

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Metronidazole's Common Side Effect

Metallic taste

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Antibiotic Contraindicated in 1st Trimester

Tetracycline HCl

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Potent Bacteriostatic Antibiotic Against Anaerobes

Clindamycin

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Antibiotic Inducing Ulcerative Colitis

Clindamycin

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Antibiotic with Weak Activity

Erythromycin

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Effective Systemic Antibiotic Regimen

Amoxicillin (500 mg TID) and metronidazole (250 mg TID) for 8 days

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Advantage of Local Delivery Devices

Bypasses the metabolism by the liver

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Antibiotics & Microorganism Growth

False

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Chemotherapy Selectivity

True

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Antimicrobial Definition

True

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Microcidal Action

False

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Narrow Spectrum

False

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Broad Spectrum Antimicrobials

False

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Tetracyclines action on bacteria

False

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Metronidazole & A. actinomycetemcomitans

True

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Amoxicillin + Clavulonic Acid

False

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Doxycycline Frequency

True

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