class of by liaoqinmei


									1. on average, how long does it take for periodontal pathogens to return to baseline levels after a
scaling and root planing procedure?
        A. 4-5 days           B. 4-6 weeks
        C. 9-11 weeks         D. 11-12 weeks
        E. Periodontal pathogens never return to their baseline levels

2. All of the following are true about Diabetes Mellitus except:
        A. Reduced PMN functions and defective chemotaxis
        B. Decreased levels of elastase in GCF
        C. Increased release of elastase from PMNs within the gingival tissues
        D. Excessive release of cytokines and altered macrophage phenotype

3. Actinomyces are more prevalent in the supragingival environment and they are very
numerous within the RED zone of the bacterial classification scheme.
       A. the first statement is true, and the second statement is false
       B. The first statement is true, and the second statement is true.
       C. The first statement is false, and the second statement is false.
       D. The first statement is false, and the second statement is true.

4. What color is supragingival calculus?
        a. green               b. creamy white/ dark yellow
        c. black               d. brown

5. T / F : A pathogen is necessary, but not sufficient for a disease to occur.

6. Changes in micro vascular plexuses and enhancement of PMN migration occurs in what stage
of the gingival lesion:
        A.      Advanced
        B.      Early
        C.      Initial
        D.      Established

7. An electron dense organic material interposed between subgingival plaque and the tooth is
        A. Pellicle          B. Biofilm Basement Membrane
        C. Cuticle           D. Glycocalyx Bridge

8. Which of the following is characteristic of periodontal disease in SMOKERS....
      a. more attachment loss                b. less gingivitis
      c. more gingivitis                     d. more than one of the above

9. Predicted Value Positive is probability that a test result will be positive when the test is
administered to people who actually have the disease. Specificity is the probability of not having
the disease when the test is negative.
            A. Both statements are true
            B. First statement is true and second statement is false
            C. First statement is false and second statement is true
            D. Both statements are false

10. All of the following are part of the reactive process of periodontal soft tissue EXCEPT:
      a. peripheral giant cell granuloma             b. hemangioma
      c. pyogenic granuloma                          d. fibroma
11. In POOR diabetic control has a how much percentage of glucose bound to hemoglobin?
        a. <2.5%    b. 2.5 - 5.9%         c. 6 -8%             d. > 8%

12. A poorly controlled diabetic has increased risk of developing periodontitis as they age,
assuming they have Type I and not Type II. B. A higher frequecy of periodontal attachment loss
is also found in specifically Type I, not type II.
         A. A and B are true.
         B. A is true; B is false.
         C. A is false; B is true.
         D. A and B are false.

13. Mutations in genes which express which of the following have NOT been linked to
           a.  Cathepsin C (CTS C)       b.    TNF-alpha
           c.  IL-1                      d.    Fc-gamma Receptor

14. A suspected risk factor that has been correctly identified through cross-sectional study
designs, although there are not yet data from a longitudinal study would best be described as a:
            a.  Risk Marker                   b.   Pre-risk Factor
            c.  Causitive Risk                d.   Risk Indicator

15.    Generalized aggresive periodontits is characterized by robust serum antibodies in
response to infecting agents, and a pronounced episodic nature of destruction of attachment and
alveolar bone
           A. Both statements are true
           B. First statement is true and second statement is false
           C. First statement is false and second statement is true
           D. Both statements are false

16. As we move from the basal layer to the keratinized layer of the oral epithelium. The number
of desmosomes increases and the number of tonofilaments decreases.
          A. Both statements are true
          B. First statement is true and second statement is false
          C. First statement is false and second statement is true
          D. Both statements are false

17. the most common cyst of the jaws is
        A. Odontogenic Keratocyst            B. Lateral periodontal cyst
        C. Radicular cyst                    D. Inflammatory paradental cyst

18. A 12 year old presents with inflammation and interproximal attachment loss on her first
molars and second premolars. What is your diagnosis?
        A. Generalized aggressive periodontitis
        B. Incidental attachment loss
        C. Local aggressive periodontitis
        D. Gingivitis

19. Which of the following is not part of the clinical periodontal exam?
       A. Probing Depth               B. Bleeding on probing
       C. Radiographs                 D. Gingival recession
20. HSV1 and Varicella Zoster are both herpes viruses. HSV1 can effect the oral mucosa but
Varicella Zoster can not.
        A. 1st statement is true, 2nd statement is false
        B. Both statements are true
        C. 1st statement is false, 2nd statement is true
        D. Both statements are false

21. Which of these is not a clinical characteristic of NPD?
      a. bleeding in gentle touch
      b. "punched out" papilla
      c. oral lesions of any area of the mucosa
      d. generally presents a linear erythema

22. Which of these is true of pemphigus vulgaris?
      a. typically seen in middle aged or eldery
      b. localized erosions are common at later stages
      c. extraoral onset
      d. allergic reaction

23. Jiggling type trauma (occlusal forces) in teeth with healthy peridontium that is at normal
height will cause the pdl width to increase with no signs of inflammation; while in teeth with
progressive, plaque associated periodontal disease jiggling type trauma will enhance the rate of
periodontal destruction
        a. first statement true; second statement false
        b. first statement false; second statement true
        c. both statements false               d. both statements true

24. The backbone of the biofilm is made of exoplysaccharides. pH can not vary over short
distances within the biofilm.
        A. Both statements are true
        B. First statement is true and second statement is false
        C. First statement is false and second statement is true
        D. Both statements are false
25. A characteristic or factor that has the ability to predict individuals at high risk for disease,
but is not likely to be part of the causal chain is
        a. Risk factor                  b. Risk indicator
        c. Risk marker                  d. Background characteristic

26. Chronic periodontitis is more prevalent in adults. It can be classified as localized when fewer
than 40% of sites are affected.
       A. Both statements are true
       B. First statement is true and second statement is false
       C. First statement is false and second statement is true
       D. Both statements are false

27. In the disease progression of gingivitis to periodontitis an early lesion can be characterized
be predominating plasma cells and an established lesion can be characterized be loss of
Junctional Epithelium attachment.
        a) the first sentence of this statement is true, the second is false.
        b) both statements are true
        c) both statements are false
        d) the first statement is false, the second statement is true
28. In chronic periodontitis Th2 cells outnumber Th1 cell. Auto-reactive B cells have been noted
in cases of advanced periodontitis.
        a)both sentences are true
        b) both sentences are false
        c) the first sentence is true the second is false
        d) the first sentence is false the second is true

29. Which bacteria is NOT associated with perio abscesses?
       a. Tannerella forsythus             b. Fusobacterium nucleatum
       c. Treponema pallidum               d. Prevotella intermedia

30. Which of the following is a reactive process of the hard tissue?
      a. osteosarcoma                b. Langerhans cell disease
      c. hemangioma                  d. periapical cemental dysplasia

31. Clinical characteristics of NPD include:
               1. a yellowish-brown or bluish slough
               2. bulbous, swelled papillae
               3. pain
               4. linear erythema
               5. craters on the buccal aspects of the gingiva
               6. sequestrum formation

        a. all of the above
        b. 1,3,4,6
        c. 1,2,3,4,6
        d. 3,4,6 *
        e. 3,4,5,6

32. NPD is a possible early sign of all of the following diseases except...
      a. HIV                  b. Leukemia
      c. Diabetes             d. Tuberculosis

33. Waerhaug's concept says that the loss of connective tissue and the
resorption of bone around teeth are exclusively the resutl of inflammatory
lesions associated with subgingival plaque. Also, angular bony defects and
intrabony defects occur when the supragingival plaque of one tooth has
reached a more apical level than the microbiota on the neighboring tooth.
        a. Both statements are true
        b. First statement is true, the second statement if false.
        c. First statement is false, the second statement is true.
        d. Both statements are false.

34. IL-1 alpha and IL-1 beta are located in close proximity in the IL-1 gene cluster on
chromosome 4. The combined presence of R-alleles of IL-1alpha and IL-1 beta genes have been
found to be associated with severity of severe periodontitis in smoking Caucasian patients.
        a. Both statements are true.
        b. First statement is true, the second statement is false.
        c. First statement is false, the second statement is true.
        d. Both statements are false.
35 -What is/are risk factors for osteoporosis?
      a. Sex           b. Age          c. Low bone Mass             d. All of the above

36 -Candidosis is an example of-
       a. a puberty associated gingivitis
       b. a gingival lesion of fungal origin
       c. a periodontal lesion of genetic origin
       d. none of the above

37. Which of the following is NOT a disease of the soft tissue?
      a. Squamous cell carcinoma           b. Peripheral odontogenic tumor
      c. Calcified fibrotic granuloma      d. Squamous odontogenic tumor

38. The normal range for blood glucose levels in a Fasting Plasma Glucose Determination is:
      a. 60-90 mg/dL        b. 70-100 mg/dL         c. 80-110 mg/dL     d. 90-120 mg/dL

39. Which of the following are designed primarily to asses periodontal treatment needs in under
served parts of the world?
        a. Volpe-Manhold Index
        b. Simplified Oral Hygiene index
        c. Turesky Modification of Quigley-Hein Plaque index
        d. prevalence
        e. community periodontal index
40. The ability of a test to discriminate between people with and without disease is termed...
        a. reproducibility             b. Halo effect
        c. validity                    d. prevalence
        e. central tendency error

41. Severe clinical complications related to uncontrolled diabetes are due to...
      a. less bleeding on probing            b. advanced glycation end-products
      c. increased salivary flow             d. leukotoxin
      e. Bacteroides

42. Bacterial metabolites/products cause tissue damage by...
       a. directly damaging surrounding tissue cells
       b. causing host cells to release biologically active substances
       c. affecting intracellular matrix
       d. all of the above

43) When using the Glycosylated Hemoglobin test to monitor diabetic treatment, which result
indicates poor diabetic control?
        a)6-8%                 b)1-2%            c)>8%                  d)3-6%

44) All of the following are CLINICAL indicators of occlusal trauma EXCEPT:
      a) Fremitus                    b) Wear facets
      c) Thermal sensitivity         d) Mobility
      e) none of the above, all these are clinical indicators of occlusal trauma

45. The following describe fibers of the periodontal ligament EXCEPT
       a. oblique fibers              b. horizontal fibers
       c. dentoperiosteal fibers      d. apical fibers
46. Which of the following are malignant neoplasms of periodontal soft tissues?
       a. Ameloblastoma                    b. Osteosarcoma
       c. Squamous odontogenic tumor       d. Squamous cell carcinoma

47.) Which of the following is a characteristic of NPD?
      a.) blue appearance
      b.) razor sharp borders of the free gingiva
      c.) Ulcerated and necrotic papillae(punched-out appearance)
      d.) first lesions are in the molar region

48.) A mucogingival defect for any tooth is present in the following circumstances EXCEPT:
       a.) frenum inserts onto the marginal tissues so when tension is applied there is
       movement or blanching
       b.) the probe depth reaches or exceeds the mucogingival junction
       c.) there is a lack of keratinized gingiva
       d.) there is a a large amout of bone loss

49. The Primary Herpetic Gingivostomatitis DNA virus may remain latent in which of the
following structures?
       A) Dorsal root ganglion            B)Gingival Sulcus
       C) Lateral Geniculate Body         D)Trigeminal ganglion
       E) Pterygopalatine Space

 50. In which of the following does occlusal trauma play a primary role in periodontal bone
loss? a. Immune compromised patients                b. Implants
        c. Cng span fixed partial dentures          d. Natural teeth
        e. None of the above

51. Dr. Jordan is preparing teeth #6-8 for a fixed partial denture on a patient with a slightly
subgingival class V caries on #8. When preparing the abutment teeth she should carefully
consider which of the following periodontal factors to insure an esthetic outcome?
       A) Bleeding on probing
       B) PSR screening of the patient for possible periodontal issues
       C) C Biological width
       D) Amount of acellular cementum on tooth #8
       E) The level of gingival cervicular fluid

52. All of the following are virulence factors associated with Actinobacillus
acitnomycetemcomitans EXCEPT,
             a. Degradation of collagen fibers
             b. Leukotoxins which eliminate neutrophils and macrophages
             c. Influence of bacteroicin
             d. Arg-1 protease
             e. Gram-negative bacteria’s LPS

53. All are true regarding Aggressive Periodontitis EXCEPT,
              A. LAP presents robust serum antibody response
              B. GAP affects persons in adolescence more frequently than adults
              C. For mixed dentition patients use radiographic bite-wings for screening
              D. IgG2 serum levels are significantly decreased in GAP patients who smoke
              E. Highly virulent microflora with high levels of A.a. and P.g.
54 - In uncontrolled diabetes, the formation of advanced glycation end products (AGE's) cause:
        a. reactive oxygen species            b. excessive cytokines
        c. altered macrophages                d. all of the above

55. Which of the following drugs is/are associated with gingival overgrowth?
       A. Phenytoin                          B. Cyclosporin A
       C. Calcium channel blockers           D. All of the above.

56. Which of the following is/are classified as an osseous defect correlated with radiographic
        A. Crater     B. hemiseptum
        C. moat       D. All of the above.

57. Hertwig's epithelial root sheath is formed from:
       a. dental follicle      b. dental papilla     c. dental organ        d. cementum

58. Which nerve innervates the labial aspect of the mandibular incisors?
      a. infraorbital nerve b. mental nerve         c. buccal nerve      d. sublingual nerve

59. Smoking has the following effects on the host response.
       a. Lower amount of GCF               b. Increased BOP
       c. Unresponsive T Cells              d. Two answers are correct.
       e. All of the above.

60. Injury resulting in tissue changes from normal or excessive occlusal forces applied to a tooth
or teeth with reduced support is known as:
        a. primary occlusal trauma b. secondary occlusal trauma.
        c. Orthodontic type trauma. d. Jiggling-type trauma.

61. Smoking’s effect on BOP
      a. increase BOP      b. decrease BOP           c. No change

62. An end product of the cyclooxygenase pathway is
      a. leukotrienes        b. NSAIDS           c. Prostaglandins

63. Which of the following is not true about periodontal abcesses?
      a. Periodontal abcesses may be gingival, periodontal, or periocoronal.
      b. They are the result of occlusion or trauma to the orifice of the periodontal pocket.
      c. They always occur as a chronic lesion.
      d. They involove a local accumulation of neutrophils, tissue breakdown, and pus.

64. Which of these is not a potential furcation in maxillary molars?
      a. mid mesial                           b. mid buccal
      c. mesiolingual line angle              d. direct distal

65. BOP is a valid indicator for periodontal stability. However, it is a poor indicator of
periodontal breakdown.
       A. Both sentences are true.
       B. First sentence is true, second sentence is false.
       C. First sentence is false, second sentence is true.
       D. Both sentences are false.
66. All of the following are benefits of Periodontal Screening and Recording (PSR) except:
       A. Early detection                                   B. Speed and simplicity
       C. Used primarily for use with adult patients        D. Cost effectiveness
       E. Recording ease

67. There is increasing evidence that infections such as periodontitis may play a significant role
in pregnancy complications. A study which supports this theory is the twin model study on
monozygous and dizygous twins.
        a. Both sentences are true.
        b. First sentence is true; second sentence is false.
        c. Second sentence is true; first sentence is false.
        d. Both sentences are false.

68. According to Socransky's study on microbial complexes, which of the following is NOT an
early colonizer within biofilms?
        a. Streptococcus                                 b. B. forsythus
        c. A. actinomycetemcomitans serotype a           d. Actinomyces
        e. E. corrodens

69. Which of the following nerves innervates the buccal gingiva of mandibular incisors
      A. Mental Nerve                              B. Long Sphenopalatine Nerve
      C. Submandibular Nerve                       D. Long Buccal Nerve

70. Which lymph node drains the third molars?
      A. Jugulodigastric                             B. Cervical
      C. Submandibular                               D. Submental

71. - All of the following are members of the Red complex of associated bacterial species
        a. B. forsythus        b. A. actinomycetemcomitans serotype a
        c. P. gingivalis       d. T. denticola

72- All of the following are host defense mechanisms in the gingival sulcus except,
        a. salivary flushing          b. sulcus fluid flushing
        c. antibiotic therapy         d. tissue turnover

73. Which of the following tests is used to diagnose diabetes mellitus?
      A) Glucose Tolerance Test
      B) Fasting Plasma Glucose Determination
      C) Glycosylated Hemoglobin Levels
      D) A & B only
      E) A & C only

74. Which of the following drugs is not associated with gingival overgrowth?
      A) Cyclosporin A               B) Epinutin
      C) Metronidazole               D) Nifedipine
      E) Two of the above

75. This is the predominant mineral found in the exterior layers of calculus.
       a. Brushite           b. Octa calcium phosphate
       c. Hydroxyapetite     d. Whitlockite
76. Which drug or drugs are commonly associated with gingival overgrowth?
      a. phenytoin sodium                       b. Cyclosporin A
      c. Calcium channel blockers (Nifedipine) d. all of the above
      e. none of the above

77. The connective tissue matrix is composed of fibers produced mainly by fibroblasts. Two of
the major glycoproteins that make up CT are:
       a. glycosaminoglycans and proteoglycans b. fibronectin and hyaluron sulfate
       c. Heparin sulfate and hyaluron sulfate     d. fibronectin and osteonectin
       e. none of the above

78. Presence of lymph in the periodontal tissues in the area of the third molars would most likely
drain to which of the following lymph nodes:
        a. Cervical lymph node               b. Submandibular lymph node
        c. Jugulodigastric lymph node        d. Submental lymph node
        e. No lymph node involvement is seen in periodontal abcesses.

79. Which of the following cytokines DOES NOT have a genetic polymorphism associated with
periodontal disease?
       a. IL-1        b. IL-10           c. INF-gamma               d. TNF-alpha

80. Occlusal trauma by itself can cause periodontal disease. Occlusal trauma is a secondary
etiological factor for periodontal disease.
        a. 1st statement true, 2nd statement true
        b. 1st statement false, 2nd statement true
        c. 1st statement false, 2nd statement false
        d. 1st statement true, 2nd statement false

81. Of the following cells of the oral epithelium, which are "clear cells"?
       a) Langerhans cells             b) Merkel's cells
       c) melanocytes                  d) A & C              e) A & B

82. Of the following mucocutaneous disorders, which one presents with Wickam striae and
Civatte bodies?
        a) Pemphigoid              b) Lupus erythematosus
        c) Lichen planus           d) Pemphigus vulgaris        e) Erythema multiforme

83. Bacteroides forsythus is now known as:
     a. Tannerella forsythensis     b. Bacteroides forsythensis
     c. Tannerella forsythus        d. Prevotella forsythus

84. Smokers with periodontal disease have all of the following except?
      a- deep probing depths and a large # of pockets
      b- more alveolar bone loss
      c- more gingivitis and more bleeding on probing
      d- more tooth loss

85. Of the microbiota found in periodontal lesions, which is the most virulent?
       a-Prevotella intermedia
       b-Fusobacterium Nucleatum
       c-Bacteriodes Forsythus
       d-Porphyromonas Gingivalis
86. Put the following in order:the different phases of plaque formation are:
   1. multiplication phase
   2. molecular adsorption
   3. sequential adsorption of organisms
   4. attachment of a single layer of organisms

       a. 1,2,3,4             b. 2,4,1,3             c. 4,2,1,3            d. 2,3,1,4

87. The cuticle is an electron dense organic material interposed betweeen subgingival plaque
and the tooth. It contains the remains of the epithelial attachment lamina from JE and material
deposited from GCF exudate.
        a. both statements are true
        b. both statements are false
        c. first statement T, second statement F
        d. first statement F, second statement T

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