/44 0 Oral Microbiology Preparation (Dr. Hem Sopheak) 1 / 44 1) Biofilm infection is usually found in sites of primary and secondary infection except:? a. Genital infection b. Subvenous catheter c. Artificial hip implant d. Mouth 2 / 44 2) The most common bacteria that are always presence in mouth as a normal flora, which proposition is inexact? a. C. Prevotella b. A. Streptococcus c. B. Actinomyces d. D. Gonococcus 3 / 44 3) Factor that does not influence to dental caries? a. Individual factor b. Duration and frequency of exposure c. Substrate for microorganisms d. Size and form of teeth 4 / 44 4) A major bacteria that is responsible in facilitating adhesion by other bacteria is:? a. Staphylococcus stains b. Enterococcus stains c. Streptococcus strains d. Fusobacterium nucleatum 5 / 44 5) Principal Cocci Gram positive bacteria found in oral cavity:? a. Veillonella b. Neisseria c. Peptostreptococcus d. Moraxella 6 / 44 6) Major bacteria usually cause dental caries:? a. Mutans Streptococci, Staphylococcus aureus, Actinomyces vicosus b. Mutans Streptococci, Lactobacilli, Clostridium c. Streptococcus pneumoniae, Lactobacilli, Actinomyces vicosus d. Mutans Streptococci, Lactobacilli, Actinomyces vicosus 7 / 44 7) A bacterium that never found in tooth surface:? a. Streptococcus mutans b. Streptococcus pneumoniae c. Streptococcus mitis d. Streptococcus anginosus 8 / 44 8) Antibiotic which is common use to treat anaerobic bacteria π a. Vancomycin b. Colistin c. Gentamicin d. Metronidazole 9 / 44 9) Pathway in order of pathogenesis of oral infection:? a. Entry of bacteria into soft tissue wall or trauma to the orifice – Pus formation- Formation of infiltrate – Destruction of connective tissues – Decrease tissue resistance and increase number of bacteria with virulence b. Pus formation- Entry of bacteria into soft tissue wall or trauma to the orifice – Formation of infiltrate- Destruction of connective tissues- Decrease tissue resistance and increase number of bacteria with virulence c. Entry of bacteria into soft tissue wall or trauma to the orifice – Formation of infiltrate- Destruction of connective tissues- Pus formation- Decrease tissue resistance and increase number of bacteria with virulence d. Decrease tissue resistance and increase number of bacteria with virulence- Entry of bacteria into soft tissue wall or trauma to the orifice – Formation of infiltrate- Destruction of connective tissues- Pus formation 10 / 44 10) On tooth surface, bacteria that participate actively in adhesion of primary colonizers? a. Enterococcus stains b. Streptococcus stains c. Pseudomonas stains d. Staphylococcus stains 11 / 44 11) Infections of the mucosa are more usually associated with transient oral bacteria, which one is incorrect? a. Staphylococcus b. Enterococcus c. Pseudomonas d. Helicobacter 12 / 44 12) A bacterium that is usually found in tongue π a. Staphylococcus epidemidis b. Streptococcus pneumoniae c. Clostridium difficile d. Streptococcus mitis 13 / 44 13) Major bacteria cause periodontitis π a. Fusobacterium nucleatum, Petostreptococcus micros, Enterococcus, Borrela vincenti b. Fusobacterium nucleatum, Petostreptococcus micros, Streptococci, Pneumococcus c. Fusobacterium nucleatum, E.coli, Streptococci, Borrela vincenti d. Fusobacterium nucleatum, Petostreptococcus micros, Streptococci, Borrela vincenti 14 / 44 14) Strategy to control of biofilm pH in oral biofilm:? a. Fluoride b. Antiflammatory agents c. Generating nutrients d. Inhibition of key microbial enzyme 15 / 44 15) Analytical techniques for monitoring biofilms by βIndirect detectionβ π a. Detection of DNA by molecular biology technique b. High Pressure Liquid Chromatography (HPLC) c. Detection of proteins by molecular biology technique d. Microscopy techniques 16 / 44 16) Major bacteria cause aggressive periodontitis? a. Eikenella corrodens, Capnocytophaga sputigena, Actinobaccilus actinomycetemcomitans, Prevotella intermedia b. Prevotella intermedia, Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae c. Capnocytophaga sputigena, Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae d. Actinobaccilus actinomycetemcomitans, Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae 17 / 44 17) Which bacteria that is not always presence in saliva:? a. Streptococcus mitis b. Streptococcus oralis c. Streptococcus salivarius d. Streptococcus agalactiae 18 / 44 18) Bacteria usually cause Pericoronitis? a. Fusiform bacillus, Eikenella corrodens, Alpha-hemolytic Streptococci and Capnocytophaga sputigena b. Alpha-hemolytic Streptococci, Provetella, Bacterioides and Capnocytophaga c. Fusiform bacillus , Provetella, Eikenella corrodens and Capnocytophaga sputigen d. Borrelia vincentii, Bacterioides, Provetella and Eikenella corrodens 19 / 44 19) In dental caries, the protective factor is π a. Frequent eating / drinking of fermentable carbohydrates b. Antibacterials ( fluorides, Chlorhexidine, Xylitol) c. Poor oral hygiene d. Acid producing bacteria 20 / 44 20) Principal Cocci Gram negative bacteria found in oral cavity:? a. Veillonella b. Gemella c. Enterococcus d. Streptococcus 21 / 44 21) Antimicrobial against Porphyromonas gingivalis is π a. Erythromycin b. Metronidazole c. Kanamycin d. Vancomycin 22 / 44 22) The comment bacterium causes dental caries:? a. Pseudomonas aeruginosa b. Staphylococcus aureus c. E.coli d. Mutans Streptococci 23 / 44 23) Bacteria usually cause Necrotizing Ulcerative Gingivitis? a. Borrelia vincentii and Porphyromonas endodontalis b. Fusiform bacillus and Borrelia vincentii c. Fusiform bacillus and Capnocytophaga sputigena d. Borrelia vincentii and Eikenella corrodens 24 / 44 24) Among 4 phases of biofilm formation, the phase that is done the longest, about 7-14 days is:? a. Phase 3 b. Phase 1 c. Phase 4 d. Phase 2 25 / 44 25) Oral opportunistic infection happens when:? a. An organism that usually is nonpathogenic causes disease b. An organism that usually is nonpathogenic has no opportunity to cause disease c. An organism that usually is pathogenic causes disease d. An organism that usually is pathogenic becomes normal flora 26 / 44 26) Strategy to control of nutrients in oral biofilm:? a. Inhibition of key microbial enzyme b. Stimulate base production c. Fluoride d. Antimicrobial agents 27 / 44 27) A bacterium that spread from lung infection and cause oral lesions with clinical sign include fever, chills, fatigue and malaise, weight loss, and persistent cough π a. Streptococcus pneumoniae b. Mycobacterium tuberculosis c. Klebsiella pneumoniae d. Pseudomonas aeruginosa 28 / 44 28) Analytical techniques for monitoring biofilms by βDirect detectionβ π a. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) b. High Pressure Liquid Chromatography (HPLC) c. Gas Chromatography – Mass Spectrometry (GC-MS) d. Microscopy techniques 29 / 44 29) Strategy to control of rendox potential in oral biofilm:? a. Stimulate base production b. Fluoride c. Inhibition of key microbial enzyme d. Oxygenating agents 30 / 44 30) Dental caries, which answer is incorrect? a. Increased of the organic substance of the tooth b. Characterized by demineralization of the inorganic portion c. Calcified tissues of the teeth d. Multifunctional microbial disease 31 / 44 31) The most common bacterium that is responsible for tonsillitis and pharyngitis is:? a. Streptococcus mutans b. Group-B beta hemolytic Streptococcus ( Streptococcus agalactiae) c. Streptococcus mitis d. Group-A beta hemolytic Streptococcus ( Streptococcus pyogenses) 32 / 44 32) Which bacteria that is not presence in buccal mucosa? a. Streptococcus mutans b. Streptococcus mitis c. Streptococcus anginosus d. Treponema palidum 33 / 44 33) In dental caries, the pathogenic factor is π a. Acid producing bacteria b. Saliva flow and components c. Remineralization ( fluoride, Calcium, Phosphate) d. Good oral hygiene 34 / 44 34) A bacterium from buccal mucosa that can cause lung infection in chronic obstructive pulmonary infections in cystic fibrosis patients is:? a. Streptococcus pneumoniae b. Mycobacterium tuberculosis c. Klebsiella pneumoniae d. Pseudomonas aeruginosa 35 / 44 35) Microorganisms in oral tissue can cause π a. Only local infection b. Local infection c. Both, local and systemic infection d. Systemic infection 36 / 44 36) Major bacteria cause chronic periodontitis:? a. Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae, Pseudomonas aeruginosa b. Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae,Stphylococcus aureus c. Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae, Streptococcus anginosus d. Fusobacterium nucleatum, Porphyromonas endodontalis, Prevotella tannerae, E.coli 37 / 44 37) Principal Rods Gram negative bacteria found in oral cavity:? a. Lactobacillus b. Eubacterium c. Corynebacterium d. Porphyromonas 38 / 44 38) Among 4 phases of biofilm formation, the phase that is done immediately about 4 hours is:? a. Phase 4 b. Phase 3 c. Phase 2 d. Phase 1 39 / 44 39) Diseases are always found in oral cavity, except π a. Gonococci b. Tuberculosis c. Syphilis d. Typhoid fever 40 / 44 40) Specificity of Anaerobic bacteria, except:? a. Grow on anaerobic media culture b. Foul odor when opening anaerobic jar or bag c. Incubation culture in 1-2 days d. Black pigmentation on culture 41 / 44 41) Steps in order for biofilm formation:? a. Adhesion, colonization, coadhesion , maturation and detachment b. Coadhesion , adhesion, colonization, maturation and detachment c. Colonization , adhesion, coadhesion , maturation and detachment d. Maturation and detachment, adhesion, colonization, coadhesion 42 / 44 42) Steps in order to perform bacteriological diagnostic of oral microbiology:? a. Antimicrobial Susceptibility testing, Direct examination , Gram stain, Culture , Identification , b. Direct examination , Gram stain, Antimicrobial Susceptibility testing, Culture , Identification , c. Identification , Direct examination , Gram stain, Culture , Antimicrobial Susceptibility testing d. Direct examination , Gram stain, Culture , Identification , Antimicrobial Susceptibility testing 43 / 44 43) Principal Rods Gram positive bacteria found in oral cavity:? a. Simonsiella b. Actinomyces c. Eikenella d. Prevotella 44 / 44 44) Infection in oral cavity by oral flora, which proposition is inexact? a. Changes in exposure to antiseptic b. Administration of antibiotics c. Changes in the immune system d. Changes in salivary flow Your score isThe average score is 0% Facebook 0% Restart quiz Any comments? Send feedback
