last year perio mid q

7/30/2019 Last Year Perio Mid Q

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(last year)

1) the connective tissue that join the buccal and lingual papillanamed:Answer: col

2) all periodontal epithelium are derived fro ectomesenchymal tissue:Answer: false

3)extracellular matrix of one periodontium can affect the function ofpther periodontiumAnswer: true

4) ectracellualr matrix help in:Answer: all of above( cell adhesion, adhesion to tooth and basementmembrane, nutrient and toxin perfusion

5) shape of interdental papilla determined by:Answer: all of the above

6) depth of the gingival sulcus is:

Answer: 0-3

7) which one consider primary fiber of gingival epithelium:Only onedentogingival

8) the principle fiber of PDL include:Answer: all of the above

9) collagen fiber are formed by:The key answer was only fibroblast & osteoblast but the doctor saidthat cementoblast also form collagen

10) all these principles are true about sharpeys fiber except:Answer: it present only at the coronal part


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11) collagen fibers are degraded by collagenase activity:Answer: false

12) most prevalent cell in the periodontal ligament space isAnswer: fibroblast

13) which is true about cementicle:Answer: all of the above

14)all of the following are true about radiographis presentation of PDlexcept:Answer: average width is .25 mm in health & disease

15)cementum overlap enamel at CEJ inAnswer: 60%

16) hypercementosis characterized by:Answer: bulbous rootAbout the choice of crohns disease the doctor said that it is true butnot always happened so the most common answer is bulbous root

17) periodontal space communicate with pulp, apical foramen is theonly way to communicateAnswer: true, false

18) all these sentence true about cementum except:Answer: (B+D)

B: cellular cementum is permeable but acellular cementum isapermeable

D: the thickest part is in coronal part

19) cementum is a specialized mineralized tissue, it undegophysiologic remodeling by cementoblast.Answer: first statement is true, the second is false


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20) orthodontic movement:Answer: two choices are correct( they result in hypercementosis &depend on presence of periodontium to take place)

21) the alveolar bone is form only after tooth formation, it resorbsonly after tooth extractionAnswer: true, false

22)bone between roots of tooth called:Answer: interradicular bone

23)cribruform plate is:Two choices are correct that were( it line the internal wall of alveolarsocket & consist of compact bone not cancellous bone)

24)bone resorbing cells are:Answer: osteoclast

25)turn-over rate of PDL is higher than cementum but less than boneAnswer: false

26)all true about high vascularity of except:Answer: low resistance to infection

27)what is the true sentence about dimentions of alveolar bone:Answers: all of above

Or the Q was that all true except: in mandible posteriorly lingualthickest than buccal

28) one of these is a clinical sign of gingivitis:Answer: increase gingival exudates

29)all these are characteristics of gingivitis except:Answer: attachment loss

30)chronic periodontitis occur in children:Answer: true


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31)gingivitis occur with pregnancy is plaque induced, gingivitisassociated with diabetes mellitus is caused endocrine systemAnswer: true, false

32)poor diabetic control and length of time increase risk ofperiodontal breakdown & increase chances of poor response totherapyAnswer: true

33)chronic and aggressive periodontitis is subclassified into mild,moderate, and severe. Both classified into localized and generalizedbased on same criteriaAnswer: true, false

last year perio mid q

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