Oral Microbiology Test 0% 0 votes, 0 avg 1 You will have 60 minutes to complete all the questions. After the timer reaches 60 minutes, the exam will end and be saved automatically. Good luck! *Fingers crossed* The timer has been reached. The exam has now been terminated and saved. Oral Microbiology Test 1 / 60 Coxsakievirus have been found to replicate in the? a. Reticuloendothelial system b. Sensory nerve c. Small bowel d. Submucosal lymph tissue 2 / 60 Herpagina is usually cause by? a. Group A coxsackieviruses b. Group B coxackieviruses c. Cytomegalovirus d. Hepatitis A virus 3 / 60 There are many different types of bacteria normally present in the oral cavity. Which of the following is the name of the one most likely to be associated with the onset of dental caries? a. Streptococcus b. Bacteroides c. Staphylococcus d. Lactobacillus 4 / 60 Which of the following organisms is most likely to be implicated in dental caries? a. Staphylococcus epidermidis b. Streptococcus sorbinus c. Escherichia coli d. Staphylococcus aureus 5 / 60 Actinobacillus actinomycetemcomitans possesses certain virulence factors that enable it to invade tissues, such as ? a. Hyaluronidase b. hemolysine c. Streptodornas d. leukotoxin A 6 / 60 Fusobacterium Nucleatum π a. Black pigmented Gram-negative microorganism b. Plays a crucial role in the beginning of periodontal disease c. Implicated in Dental caries d. Cause scarlet fever 7 / 60 Which of the following statement on Actinobacillus actinomycetemcomitans are true? a. Non-capsulate diplococcic b. Aggressive forms of dental caries in adolescents c. Aggressive forms of periodontal disease in adolescents d. cigar-shaped bacilli 8 / 60 Fusobacterium Nucleatum π a. Produce proinflammatory cytokines and up-regulating the inflammatory response b. Non capsulate diplococci c. Gram-positive, strictly anaerobic d. Isolated from monomicrobial infections 9 / 60 Which microorganism implicated in pit and fissure caries? a. Staphylococcus aureus b. Actinimyces viscosus c. Streptococcus mutans d. Streptococcus mitis 10 / 60 Epstein-Barr Virus (EBV)? a. Cause of infectious mononucleosis b. Group A infect: skin and mucous membranes c. Betaherpesvirus subfamily of herpesviruses d. Achieves latency in sensory ganglia 11 / 60 Several infections occur in the oral cavity that are of relevance to the dental team. Which of the following infections does virus cause? a. Lateral periodontal abcess b. Acute necrotizing ulcerative gingivitis c. Pericoronitis d. Herpetic stomatitis 12 / 60 There are some main routes of infection in oral cavity, which one is inexact? a. Transferred by insects bite. b. Transferred through the air on dust particles or water droplets c. Transferred by hands or objects d. Required by transient flora 13 / 60 ααΆααααααΈαααααα themophile α’αΆα ααααα αααα»αααΈαα»ααα ααΆαααΆαααααααΎαααΈ? a. 20 ΛC b. 37 ΛC c. 30 ΛC d. 40 ΛC 14 / 60 ααΆααααααΈ Doderlein α’αΆα ααααα αααα»α milieu? a. milieu base b. milieu alcalin c. milieu acide d. milieu acide + base 15 / 60 αααα»αααΆαααααΆαα αΌαααααΆαααΆαα»αα·αα αααΈα’αΆα αΆαααααααΆααααααΈαααααα permΓ©ase ααΆα? a. PermΓ©ase Γ‘ ions (K,PO4, SO4) and PermΓ©ase Γ‘ protein , permΓ©ase Γ‘ acide amines b. PermΓ©ase Γ‘ sucre , PermΓ©ase Γ‘ glucose c. PermΓ©ase Γ‘ ions d. PermΓ©ase Γ‘ protein , permΓ©ase Γ‘ acide amines 16 / 60 ααΆαααααΆαα αΌαααααΆαααΆαα» αα·αα αααΈα’αΆα αΆαααααααΆααααααΈ ααΆαααΆααΆαααΆαα»ααΆ forme complex αα»ααα·αααΆααααααΈαααα ααααΎααααΆααααΆαααααΌαααααΆαααααααααexoenzyme ααΆαα»ααα·α ααΆαααΆαα»ααΆαααααααΆα? a. PolymΓ©re , acide amine, ATP b. Base pyruvique ,Vitamine, ATP c. ProtΓ©ine , polymΓ©re, polyose d. PolymΓ¨re, ATP ,Vitamine 17 / 60 ααα½αααΆααααααΈαααααααΆα peptide-glycane ααααΆα enveloppe externe αα·αααααΆαcytoplasmique α α ααΆ ? a. Protoplastes b. MΓ©sophile c. Mycoplasme d. SphΓ©roplaste 18 / 60 ααα’αΆα αα·ααααΆααΉαααΈααΌαααΆαααΆααααααΈααΆαααΌα αααααα αα·α ααΆαα’ααααΆααα αααααΆα? a. Capsule ααααΆααααααΈ b. glycocalix ααααΆααααααΈ c. Paroi ααααΆααααααΈ d. noyau ααααΆααααααΈ 19 / 60 ααΆααααααΈαααααΆαααααΌαααααααα»αααααΊ? a. cryophile b. Thermophile c. psychophile d. MΓ©sophile 20 / 60 ααΆαα αααΎαααααα½αααΆααααααΈααααΎααΆαααΌαααΆαααα pH? a. pH 6-6.5 b. pH : 9-10 c. pH : 7-7.5 d. pH : 8-9 21 / 60 αα½αααΆααααααΈ pseudomonas α’αΆα ααααα αααα»α milieu ? a. milieu acide + base b. milieu acide c. milieu base d. All are corrects 22 / 60 Protoplaste ααΊααΆααΆααααααΈααα? a. ααΆαααααα + paroi peptide-glycane et enveloppe externe ααααααα»ααα·αααα menbrame cytoplasmique ααααΈαααα α b. ααααΆαααααα + paroi, peptido-glycane et envelope extene ααααααα»ααα·αααα menbrame cytoplasmique αααα½ααααβ α c. ααΆαααααα + paroi + enveloppe α’ααααΆα cytoplasme d. ααααΆα ααααα + paroi peptido-glycane et envelope extemne cytoplasmique ααΆα αααΎαα 23 / 60 ααΆαααΆαα»ααΆααααααααααααΆαα αα·αααΆαααΈαααΌαααΆααααααααΆααααααΈ? a. ααΆαααΆαα»αα αα½α Antiseptique ααααα b. ααΆαααΆαα»ααβ ααα½α Antiseptique c. ααΆαααΆαα»αα αα½α antibiotique,αα ααα½α Antiseptique ααααΆαα ,ααααα and ααΆαααΆαα»αα αα½α Antiseptique ααααα d. ααΆαααΆαα»αα αα½α Antiseptique ααααΆαα 24 / 60 Mycoplasme ααΊααΆααα½αααΆααααααΈαααααααΆα? a. glycocalix + paroi b. capsule + paroi c. ααααΆααααΈααΌααααΆα d. Paroi 25 / 60 ααΆααααααΈαααααααΎα’αααα»ααααα αααΈα’αΆα αΆαααααα»ααααααα’αααΈ ? a. Clostridium b. Streptocoque c. Pneumcoque d. Staphylocoque 26 / 60 Paroi bacterie gram nΓ©gatif ααΆααααααα? a. ααααΆαα α’αΆαααα»αα’αΆα ααααΆα α αΎα bactΓ©rie αααααα b. ααααΎα α’αΆαααα»ααα·αα’αΆα ααααΆαα αΌαααΆα c. ααααΎα α’αΆαααα»αα’αΆα ααααΆα α αΎα bactΓ©rie ααααααα α d. ααααΎα α’αΆαααα»αα’αΆα ααααΆαα αΎα bactΓ©rie αααααα 27 / 60 α’αααΈαα αααα α ααΆ Ration totale ααααααΆααααααΈ? a. Ration de croissance and ααα·ααΆαα αααΈα’αΆα αΆαααααααααααΆααααααΈ b. Ration de croissance +ααα·ααΆαα αααΈα’αΆα αΆαααααΆααααΌαααΆαααααααΆααααααΈ c. Ration dβentretien andβ ααα·ααΆαα αααΈα’αΆα αΆαααααααααααΆααααααΈ d. Ration dβentretien, ααα·ααΆαα αααΈα’αΆα αΆαααααααααααΆααααααΈ and Ration de croissane 28 / 60 ααα·ααΆαα αααΈα’αΆα αΆαααααΆααααΆαααααα·α ααΎααααΈααΆαααα α ααΆ? a. Ration dβentretien and Ration totale b. Ration dβentretien c. Ration totale d. ration de croissance 29 / 60 ααΆααααααΈαααααα·αααααα’ααααΆαααααΊ ( non pathogΓ©ne ) α’αΆα ααααα αααα»αmilieu? a. milieu acide + base b. milieu base ααααΆα acide ααααΆα c. milieu acide d. milieu base 30 / 60 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. Pseudomonas aeruginosa c. Mycobacterium tuberculosis d. Streptococcus pneumoniae 31 / 60 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. Antimicrobial Susceptibility testing, Direct examination , Gram stain, Culture , Identification , d. Direct examination , Gram stain, Antimicrobial Susceptibility testing, Culture , Identification , 32 / 60 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 33 / 60 Strategy to control of nutrients in oral biofilm:? a. Antimicrobial agents b. Fluoride c. Stimulate base production d. Inhibition of key microbial enzyme 34 / 60 A bacterium from buccal mucosa that can cause lung infection in chronic obstructive pulmonary infections in cystic fibrosis patients is:? a. Klebsiella pneumoniae b. Streptococcus pneumoniae c. Pseudomonas aeruginosa d. Mycobacterium tuberculosis 35 / 60 Antibiotic which is common use to treat anaerobic bacteria π a. Gentamicin b. Metronidazole c. Colistin d. Vancomycin 36 / 60 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 37 / 60 Which bacteria that is not always presence in saliva:? a. Streptococcus agalactiae b. Streptococcus oralis c. Streptococcus mitis d. Streptococcus salivarius 38 / 60 Biofilm infection is usually found in sites of primary and secondary infection except:? a. Genital infection b. Artificial hip implant c. Mouth d. Subvenous catheter 39 / 60 Antimicrobial against Porphyromonas gingivalis is π a. Erythromycin b. Kanamycin c. Vancomycin d. Metronidazole 40 / 60 Strategy to control of rendox potential in oral biofilm:? a. Stimulate base production b. Inhibition of key microbial enzyme c. Oxygenating agents d. Fluoride 41 / 60 A bacterium that never found in tooth surface:? a. Streptococcus mutans b. Streptococcus mitis c. Streptococcus anginosus d. Streptococcus pneumoniae 42 / 60 Infections of the mucosa are more usually associated with transient oral bacteria, which one is incorrect? a. Helicobacter b. Staphylococcus c. Enterococcus d. Pseudomonas 43 / 60 Principal Rods Gram positive bacteria found in oral cavity:? a. Actinomyces b. Prevotella c. Simonsiella d. Eikenella 44 / 60 The following infectious agents are likely to be transmitted in dental care settings:? a. Hepatitis G b. Candida albicans c. Influenza. d. Ph. Heng Kanika e. Streptococcus pyogenes 45 / 60 Which of the following statements on clinical sign of necrotizing ulcerative gingivitis is INEXACTE? a. Loss of supporting tissues (noma). b. Inflamed, red, shiny and bleeding gingivae c. Unpleasant metallic taste d. Irregular alveolar bone loss around teeth 46 / 60 What are the predominant plaque bacteria in healthy condition? a. Anaerobic cocci (-) and rods (-). b. Facultative anaerobia cocci (+) and rods (+) c. Anaerobic cocci (+) and rods (+) d. Facultative anaerobia cocci (-) and rods (-) 47 / 60 Which of the following statements on dental caries is INEXACTE? a. Carious lesion is result of demineralization of enamel b. Destruction of tissues of tooth by bacterial fermentation of dietary carbohydrates. c. Commonly associated with malnutrition and possibly systemic diseases d. Chronic endogenous infection caused by normal oral commensal flora 48 / 60 A facultative anaerobic is:? a. Only grow in the presence of O2 b. Only grow anaerobically c. Ordinarily an aerobe but can grow in absence of O2. d. Ordinarily an anaerobe but can grow with O2 49 / 60 Which of the following statements on dental caries are true? a. signs of fissure caries can be first detected in dentine b. recurrent caries is commonly associated with an existing restoration. c. fissure caries is commonly seen in the lingual surface of the incisors d. approximately 90% of people over 60 years in the West have root surface caries 50 / 60 Initiation of dental caries depends upon:? a. availability of carbohydrate food b. Localisation of acid over tooth surface. c. formation of large amount of acid d. viscosity of saliva 51 / 60 Aggressive periodontitis is treated by:? a. Penicillin 500 mg 3 times/day for 3 weeks b. Tetracycline 250 mg 3 times/day for 4 weeks c. Metronidazole 250 mg 3 times/day for 1 weeks d. Amoxicillin 500 mg 3 times/day for 2 weeks. 52 / 60 Microorganisms play the most essential role.? a. Streptococcus agalactiae b. Dental caries is associated with: c. Streptococcus anginosus. d. Streptococcus mutans e. Streptococcus bovis 53 / 60 What are the predominant plaque bacteria in gingivitis? a. Facultative anaerobia cocci (-) and Anaerobic rods (-) b. Facultative anaerobia cocci (+) and Anaerobic rods (-) c. Anaerobic cocci (-) and Facultative anaerobia rods (-). d. Anaerobic cocci (+) and Facultative anaerobia cocci rods (+) 54 / 60 Which of the following statements on periodontal disease is INEXACT? a. Manage by restoration b. One of major diseases afflicting humankind c. Disorders of supporting structures of teeth d. Can be controlled by using mechanical cleansing techniques. 55 / 60 The bacteria detected in localized aggressive periodontitis are:? a. Treponema denticola and fusobacterium nucleatum. b. Borrelia vincenti and medium size spirochetes. c. A. actinomycetemcomitans, Capnocytophaga spp. and Porphyromonas gingivalis. d. Fusiformis and Tanerella forsythus. 56 / 60 Demineralization of inorganic portion and destruction of organic of tooth is known as:? a. Enamel caries b. Dental caries c. Dentinal caries d. Pulpitis. 57 / 60 Dentoalveolar abscess is treated by:? a. Drainage through the gingival sulcus or by an external incision. b. Periodontal flap procedure c. Gingivectomy d. Gingivoplasty 58 / 60 The legend of worms, endogenous theories, chemical theories and parasitic theory are early theories explaining:? a. Dental caries b. Osteomylitis. c. Periodontitis d. Gingivitis 59 / 60 Which of the following statements on Ludwigβs angina is INEXACTE? a. little amount of pus is yielded on surgical drainage. b. it may warrant an urgent tracheostomy c. the majority of cases are due to submandibular sialadenitis d. it needs to be treated with high-dose, parenteral metronidazole and penicillin 60 / 60 In dentoalveolar abscess, the bacteria reach pulp by:? a. Traumatic exposure during dental treatment b. Poor oral hygiene c. Plaque microorganisms d. Primary herpetic gingivostomatitis. Your score isThe average score is 0% Facebook 0% Restart quiz Any comments? Send feedback
