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A well-organised community of bacteria that adheres to surfaces and is embedded in an extra cellular slime layer is termed
A well-organised community of bacteria that adheres to surfaces and is embedded in an extra cellular slime layer is termed
Bacteria attachment zones can be defined into distinct areas, select the most appropriate response
Bacteria attachment zones can be defined into distinct areas, select the most appropriate response
Bacteria that have double cell membranes and that do not stain purple with crystal violet are called
Bacteria that have double cell membranes and that do not stain purple with crystal violet are called
Microbial plaque is considered the primary cause of periodontal disease
Microbial plaque is considered the primary cause of periodontal disease
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Plaque biofilms are best removed by using mouthwash and adjustive chemical agents
Plaque biofilms are best removed by using mouthwash and adjustive chemical agents
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The term biofilm can be defined as a complex dynamic microbial community embedded within the extra cellular matrix
The term biofilm can be defined as a complex dynamic microbial community embedded within the extra cellular matrix
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The term biofilm can be defined as a simple dynamic microbial community embedded within extra cellular matrix
The term biofilm can be defined as a simple dynamic microbial community embedded within extra cellular matrix
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Which of the following would be most effective in controlling the bacteria in a dental plaque biofilm ?
Which of the following would be most effective in controlling the bacteria in a dental plaque biofilm ?
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Which structure of a biofilm facilitates the movement of nutrients to the bacteria ?
Which structure of a biofilm facilitates the movement of nutrients to the bacteria ?
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Study Notes
Biofilm
- A well-organised community of bacteria that adheres to surfaces and is embedded in an extra cellular slime layer is termed a biofilm.
- Biofilms are complex, dynamic microbial communities embedded within an extra cellular matrix.
- Biofilms can be defined into distinct areas, commonly referred to as attachment zones.
Gram-negative Bacteria
- Bacteria that have double cell membranes and that do not stain purple with crystal violet are called gram-negative bacteria.
Dental Plaque
- Microbial plaque is considered the primary cause of periodontal disease.
- Dental plaque biofilms are best removed by mechanical means (such as brushing and flossing), rather than mouthwash and adjustive chemical agents.
Biofilm Structure
- The extra cellular matrix in a biofilm facilitates the movement of nutrients to the bacteria.
- The most effective way to control bacteria in a dental plaque biofilm is to disrupt the biofilm structure through mechanical means.
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Description
Biofilm
