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