Dental Caries Development Quiz

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Questions and Answers

What is the specific of infectious disease: a. direct transmission of microorganisms b. to elicit an immune response c. after colonisation of the microorganism starts tissue damage d. pathogens don’t survive the transfer and don’t adapt to a new environment

a. direct transmission of microorganisms c. after colonisation of the microorganism starts tissue damage

a. direct transmission of microorganisms b. to elicit an immune response

a. direct transmission of microorganisms d. pathogens don’t survive the transfer and don’t adapt to a new environment (correct)

What are the characteristics of the enamel as a field for the development of the carious process? a. tooth age b. tooth morphology c. fluoride intake d. nutrition during histogenesis e. inner systemic factors f. outer systemic factors g. family-specific features

a. tooth age b. tooth morphology c. fluoride intake

b. tooth morphology d. nutrition during histogenesis e. inner systemic factors f. outer systemic factors g. family-specific features

all of the answers (correct)

Which are the qualities of S. Mutans that make it the most cariogenic MO? a. affinity to colonise the enamel surface b. protein degradation c. ability to live in an alkaline environment d. unique relationship with sucrose e. unique connection with lactose

a. affinity to colonise the enamel surface b. protein degradation d. unique relationship with sucrose (correct)

a. affinity to colonise the enamel surface g.

a. affinity to colonise the enamel surface c. ability to live in an alkaline environment e. unique connection with lactose

Saliva dissolving effect depends on: a. whether its stimulated or non-stimulated b. its buffering capacity c. the viscosity of the saliva d. chronic diseases e. oral hygiene

a. whether its stimulated or non-stimulated b. its buffering capacity c. the viscosity of the saliva Signup and view all the answers

Which compounds are chelators? a. strontium, magnesium, barium, zinc, copper b. carboxylic acids, lactates, amino acids, citrates c. pyrophosphates, diphosphate, calcium phosphates, fluorapatite

b. carboxylic acids, lactates, amino acids, citrates c. pyrophosphates, diphosphate, calcium phosphates, fluorapatite Signup and view all the answers

What of the following statements are true? a. caries may occur from many and different factors b. all factors are present in an individual c. different people have different group of factors d. the combination from individually different factors is called “sufficient causes” for caries development

a. caries may occur from many and different factors c. different people have different group of factors d. the combination from individually different factors is called “sufficient causes” for caries development Signup and view all the answers

List the characteristics of Lactobacillus: a. they have main role in caries etiology b. they are involved later c. they are found in fissure caries d. they are found on smooth surfaces e. they are found in deep caries lesions

b. they are involved later c. they are found in fissure caries e. they are found in deep caries lesions Signup and view all the answers

What characteristics of the glucans are true? a. have a strong adhesive property b. provide adhesion of lactobacillus to the enamel surface c. help plaque accumulation d. prevent acids to leave dental plaque e. help acids to leave dental plaque

a. have a strong adhesive property c. help plaque accumulation d. prevent acids to leave dental plaque Signup and view all the answers

Streptococcus salivarius: a. colonises deep carious lesion b. colonises mainly tongue and not enamel c. synthesises only levans d. synthesises only dextranx e. synthesises both levans and dextrans

b. colonises mainly tongue and not enamel c. synthesises only levans Signup and view all the answers

Bacterial biofilm is a three dimensional structure with a specific:

physiological, microbiological and pathogenetic characteristics Signup and view all the answers

bacterial micro-colonies shall be protected by the extracellular mucosa, as it: a. serves as a barrier for entry of various damaging agents b. secretes cytolytic products c. attacks protective cells of the body's immune systems d. allows for self-feeding of micro-colonies while limiting nutrients e. it is formed just before the puncture of the first tooth

a. serves as a barrier for entry of various damaging agents b. secretes cytolytic products c. attacks protective cells of the body's immune systems c. attacks protective cells of the body's immune systems d. allows for self-feeding of micro-colonies while limiting nutrients Signup and view all the answers

cellular signalling systems: a. promote nutrient transfer b. they induce expression of specific genes c. lead to phenotypic alteration of bacterial cells d. restrict the penetration of substances from the surrounding surface e. allow cells to communicate with each other

b. they induce expression of specific genes c. lead to phenotypic alteration of bacterial cells e. allow cells to communicate with each other Signup and view all the answers

acquired dental pellicle has: a. has a protective function b. serves to attach microorganisms c. initially increases slowly, then accelerates d. made of non-selectively absorbed glycoproteins e. promotes the demineralisation potential of plaque acids f. initially, there is a globular structure g. heterogeneous acellular layer

a. has a protective function b. serves to attach microorganisms f. initially, there is a globular structure g. heterogeneous acellular layer Signup and view all the answers

the first colonisers in the oral cavity are: a) s. oralis b) s. mutans c) s. mitis d) s. gordonii e) s. sanguis

a) s. oralis c) s. mitis d) s. gordonii e) s. sanguis Signup and view all the answers

the stages of plaque formation are carried out in the following sequence:

pellicle formation

micro colony growth and formation

primary colonisation

the culminating community

secondary colonisation

<ol> <li> <ol start="3"> <li> <ol start="2"> <li> <ol start="5"> <li>4</li> </ol> </li> </ol> </li> </ol> </li> </ol> Signup and view all the answers

which hypothesis is a key factor in the etiology of caries and periodontal diseases?

the ecological plaque hypothesis Signup and view all the answers

in deep fissures, the percentage of streptococci is significant:

at the entrance of the fissure Signup and view all the answers

microorganisms in the subgingival plaque: a. begin their settlement immediately after the tooth eruption b. begin their settlement after the formation of th supragingival plaque c. there are several mobile types d. form colonies e. are predominantly aerobic periodontopathogens f. they are affected by the composition of the gingival fluid

b. begin their settlement after the formation of th supragingival plaque d. form colonies e. are predominantly aerobic periodontopathogens f. they are affected by the composition of the gingival fluid Signup and view all the answers

dental caries is:

a long process with slow progression, leading to irreversible changes Signup and view all the answers

which is true about early caries lesion:

the demineralisation starts in the subsurface Signup and view all the answers

which is the wrong statement?

fluorapatite forms on the surface layer Signup and view all the answers

which statement is true about the body of the lesion?

the crystals are demineralised and some of the smallest ones can be completely dissolve Signup and view all the answers

which statement is true regarding dentin demineralisation

all of the above Signup and view all the answers

the enamel lesion is fissure is:

cone shaped with the tip of the cone towards the enamel-dentin juction and base towards the surface Signup and view all the answers

which statement is false regarding the pulp-dental defence mechanisms

the first line of defence is the development of super mineralised dentin Signup and view all the answers

primary prevention includes:

maintaining intact dentition and periodontium Signup and view all the answers

the aim of preventive dentistry is:

to maintain the health of the dentition and periodontium throughout the life of the individual Signup and view all the answers

the first visible sign of a carious lesion is:

change in the transparency of the email Signup and view all the answers

what are the signs for an active carious lesion: a. location on high caries risk surfaces b. located far from the gingival margin c. clear boundaries with the adjacent sound enamel d. loss of gloss and smoothness e. small size f. lack of clear boundaries g. covered in plaque

a. d. f. g. Signup and view all the answers

Study Notes

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Test your knowledge about infectious diseases, enamel characteristics, cariogenic microorganisms, saliva effects, and chelating compounds related to dental caries development.