Periodontal Microbiology Quiz

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

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

<p>All of the above. (D)</p> Signup and view all the answers

<p>The presence of specific bacterial species is associated with different types of periodontal disease. (A)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>Amino acids and small peptides (B)</p> Signup and view all the answers

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

<p>The Nonspecific Plaque Hypothesis suggests that any plaque formation leads to disease, while the Specific Plaque Hypothesis focuses on specific bacterial species. (B)</p> Signup and view all the answers

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

<p>Tissue-associated plaque (B)</p> Signup and view all the answers

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

<p>Mechanical removal through brushing and flossing (A)</p> Signup and view all the answers

<p>Presence of a high percentage of facultative species from Streptococcus and Actinomyces genera (D)</p> Signup and view all the answers

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

<p>Dextran-producing bacteria (D)</p> Signup and view all the answers

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

<p>As attached bacteria in biofilms (B)</p> Signup and view all the answers

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

<p>Increased Gram-negative, anaerobic bacteria in chronic periodontitis (B)</p> Signup and view all the answers

<p>P.gingivalis, T.forsthus, and T.denticola (C)</p> Signup and view all the answers

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

<p>From cocci to rods and then to spirochetes (C)</p> Signup and view all the answers

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

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

<p>They predominantly fall into the green, orange, or red complexes. (B)</p> Signup and view all the answers

<p>Coaggregation bridges allow cooperation between non-partner species. (B)</p> Signup and view all the answers

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

<p>It consists mainly of spirochetes and filaments. (A)</p> Signup and view all the answers

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

<p>Through cooperation and communication with each other. (D)</p> Signup and view all the answers

<p>They utilize saliva as a carbon source. (C)</p> Signup and view all the answers

<p>To act as a protective barrier and substrate for bacteria (D)</p> Signup and view all the answers

<p>Gram-positive facultative microorganisms (A)</p> Signup and view all the answers

<p>Fimbriae with adhesins (A)</p> Signup and view all the answers

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

<p>Adhesion of secondary colonizers to existing bacteria (C)</p> Signup and view all the answers

<p>Oxygen-deprived (D)</p> Signup and view all the answers

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

<p>According to their nutritional and atmospheric environment (A)</p> Signup and view all the answers

Dental plaque consists of 70% microorganisms and 30% intercellular matrix.

A biofilm is a complex community of bacteria attached to a surface and embedded in a slime layer.

Bacteria can live free-floating (planktonic) or attached to surfaces, forming biofilms.

The intercellular matrix of dental plaque includes glycoproteins, polysaccharides, albumin, and lipids.

Inorganic materials in dental plaque come from saliva, gingival crevicular fluid, and fluoridated toothpaste.

Materials like plaque, calculus, and materia alba that accumulate on teeth.

A soft biofilm forming on tooth surfaces, consisting of bacteria and tissue cells.

A hard deposit on teeth formed by the mineralization of dental plaque.

Soft accumulations of bacteria and debris that lack the structure of plaque.

The complex community of bacteria that live in the periodontal environment.

Different niches in the mouth where specific bacteria thrive, affecting oral health.

How bacteria communicate and influence each other in periodontal diseases.

The various approaches used to treat periodontal diseases linked to microbial causes.

Coating of oral surfaces with a glycoprotein pellicle from saliva and debris.

Derived from saliva, crevicular fluid, bacterial, and host tissue cell products.

Bacteria begin to attach to the dental pellicle within hours of formation.

Specific molecules on bacteria that help them attach to the dental pellicle.

Hairlike structures on bacteria that assist in attachment to surfaces.

The process where the plaque mass grows and shifts from aerobic to anaerobic bacteria.

Microorganisms that later adhere to the plaque mass, not initially colonizing surfaces.

Interactions among different bacterial species in plaque formation.

Microbial species organize into clusters influencing periodontal health.

A group of pathogens associated with bleeding on probing in periodontal disease.

These complexes include species that are pathogens in periodontal and other infections.

Mechanisms of cooperation that connect non-coaggregation partners in biofilms.

Occurs when multiple species vie for the same binding receptor.

An environment where bacterial species optimize colonization based on communication and location.

Includes gram-positive cocci at the tooth surface and gram-negative rods at the outer plaques.

Pathogens in the oral cavity exhibit cooperation and competition in their biofilms.

An ecosystem found beneath the gumline, hosting diverse bacteria.

A bacterium that uses amino acids and small peptides for energy.

Plaque located above the gum line associated with calculus and caries.

The theory that the microbial composition in plaque influences periodontal health or disease.

Plaque found at the gum margin linked to gingivitis.

A group of pathogens including P. gingivalis, T. forsythia, and T. denticola, associated with disease.

Plaque below the gum line causing soft tissue destruction.

Changes in bacterial composition as periodontal health changes, typically from healthy to unhealthy.

Theory that specific bacteria are responsible for periodontal disease.

A severe form of gum disease characterized by the presence of gram-negative anaerobic bacteria.

Inflammation of the gums often due to bacterial imbalance.

A bacterium associated with pregnancy-related gingivitis.

The most effective method for controlling dental plaque biofilm.