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Questions and Answers
Why is it impossible to remove plaque by rinsing or the use of sprays?
Why is it impossible to remove plaque by rinsing or the use of sprays?
- Because of the acidic nature of the plaque
- Due to the presence of a tough extracellular matrix (correct)
- Due to the high mineral content of the plaque
- Because plaque is resistant to mechanical removal
What is dental plaque defined as clinically?
What is dental plaque defined as clinically?
- A hard greenish layer on mucosal surfaces
- A structured resilient yellow-grayish biofilm (correct)
- A soft pinkish film on dental restorations
- A loose whitish deposit on tooth surfaces
What differentiates plaque from other deposits found on the tooth surface?
What differentiates plaque from other deposits found on the tooth surface?
- Coloration of yellow-grayish
- Adherence to intraoral hard surfaces
- Presence of a structured resilient biofilm (correct)
- Tough extracellular matrix
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Study Notes
Dental Plaque
- Plaque cannot be removed by rinsing or using sprays because it is a sticky, biofilm-like substance that adheres to the tooth surface.
Definition of Dental Plaque
- Clinically, dental plaque is defined as a soft, thin, and sticky film of bacteria that forms on the teeth.
Plaque vs. Other Deposits
- What differentiates plaque from other deposits found on the tooth surface is its living nature, consisting of a complex community of microorganisms that produce extracellular polymers, which bind them to the tooth surface and to each other.
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