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