Periodontology I Test

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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*

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1 / 60

Gingival abrasion is caused by:?

a. High frenal attachment

b. Soft tissue friction

c. Tooth malposition

d. Faulty brushing

2 / 60

Which of the following is a more common expression of gingivae: …………?

a. Color change

b. Bleeding

c. Mobility

d. Increase pocket depth

3 / 60

False gingival enlargement is caused by:?

a. Underlying inflammation of periodontal ligament.

b. Underlying drug induced gingival enlargement.

c. By epulis.

d. Underlying dental and osseous structures.

e. Sarcoidosis (រោគពកសាច់)

4 / 60

Chronic periodontitis is a form of periodontal diseases that:?

a. affects all ages

b. produces amount of destruction which is relevant to amount of plaque

c. is familial aggregation

d. presents with wide vertical bone loss around the defect

5 / 60

The following are clinical features of periodontal abscess EXCEPT:?

a. Fluctuant swelling

b. Crater of periodontium

c. Smooth

d. Red

6 / 60

Order of periodontal treatment?

a. Treatment planning

b. Diagnosis

c. Diagnosis, prognosis and Treatment planning

d. Prognosis

e. Diagnosis, Treatment planning

7 / 60

Dentogingival unit:?

a. Is junction epithelium and periodontal fibers.

b. Is oral epithelium and gingival fibers.

c. Is junction epithelium and gingival fibers.

d. Is sulcular epithelium and gingival fibers

e. Is sulcular epithelium and periodontal fibers.

8 / 60

Primary endodontic lesion requires:?

a. A combined Periodontal and endodontic treatment.

b. Minor periodontal treatment only.

c. Periodontal surgical treatment only.

d. Endodontic treatment only.

e. A periodontal flap procedure.

9 / 60

The prognosis for smoker with severe periodontitis, when he stops smoking: …?

a. Fair

b. Good

c. Quetionable

d. Poor

10 / 60

Subclinical gingivitis is:?

a. Characterized by increased crevicular fluid flow and infiltration of sulcular and junction epithelium by polymorphonuclear leukocytes.

b. Characterized by erythema, bleeding on probe.

c. Characterized by predominantly lymphocytes microscopically.

d. Characterized by predominantly plasma cell microscopically.

e. Characterized by vascular proliferation.

11 / 60

Crater in necrotizing periodontitis involves:?

a. Cementum and gingival recession

b. Pocket formation and pulp necrosis

c. Gingival inflammation

d. Periodontal ligament, alveolar bone & loss of attachment

12 / 60

The periodontium consists of all of the following EXCEPT?

a. Gingiva

b. Periodontal ligament

c. Alveolar bone

d. Dentine

e. Cementum

13 / 60

The term chronic inflammation is best defined as?

a. An inflammatory process of short duration

b. An inflammatory process of long duration

c. A process which will be self-limiting

d. An rapid onset of inflammation

e. A process with no evidence of repair

14 / 60

The primary pathogen found in aggressive periodontitis is:?

a. Porphyromonas gingivalis

b. Aggregatibacter Actinomycetemcomitans

c. Lactobacillus

d. Tannerella forsythia

15 / 60

A 15-year-old girl presents with good oral hygiene. Radiographs how vertical bone loss on #11 and #36. What is the closest diagnosis of this case:?

a. Localized aggressive periodontitis

b. Localized chronic periodontitis

c. Localized necrotizing periodontitis

d. Localized gingivitis

16 / 60

Which one of the following is a surgical sickle?

a. Morse

b. NEV!-2

c. Ball

d. Jaquette

17 / 60

Wire edge is produced in instruments by sharping strokes that are: …………….?

a. Away from cutting edge

b. All of The answer

c. Away from cutting edge and Towards cutting edge

d. Towards cutting edge

18 / 60

Periodontal disease is a risk factor for:?

a. Pregnancy

b. Diabetes

c. Early puberty

d. Emotional stress

19 / 60

A 42-year-old female presents with minimal plaque and inflammation. Radiographs show vertical and angular bone loss on the distal side of #37. Which one is the closest diagnosis of this case?

a. Localized periodontal abscess,

b. Localized chronic periodontitis

c. Localized necrotizing periodontitis

d. Localized aggressive periodontitis,

20 / 60

Periodontal pockets can BEST be detected by: ……………?

a. The contour of the gingival margin

b. The color of the gingival

c. Radiographic detection

d. Probing the sulcular area.

21 / 60

When bone is lost evenly and uniformly around several teeth it is referred to as:

a. occlusal traumatism.

b. gingivitis.

c. horizontal bone loss.

d. vertical bone loss.

22 / 60

To position a curet for a vertical stroke on an anterior tooth, the handle of the instrument should be:

a. buccal to the plane of the lingual surfaces.

b. parallel with the long axis of the tooth.

c. lingual to the plane of the lingual surfaces.

d. perpendicular to the long axis of the tooth.

23 / 60

The characteristic of the instrument handle which provides the best tactile sensitivity is:

a. a hollow handle.

b. diameter size.

c. a solid handle.

d. a scored surface texture.

24 / 60

Polymorphonuclear leukocytes (neutrophils):

a. Secrete matrix metalloproteinase (MMP) type 1

b. Contribute to the destruction of the periodontal tissues during periodontitis

c. Represent the first line of cellular defences against periodontal pathogens, Contribute to the destruction of the periodontal tissues during periodontitis and are almost always found in the gingival tissues

d. Are not found in the gingival sulcus

25 / 60

Gingiva is supplied by:

a. All of the above

b. Arterioles emerging from alveolar crest

c. Supraperiosteal vessels

d. Vessels of periodontal ligament

26 / 60

Vertical, infrabony defects are frequently seen on radiographs:

a. On teeth that serve as abutments to partial dentures, On teeth that serve as abutments for bridge retainers

b. In patients with localised aggressive periodontitis, Adjacent to a tooth which has 'tipped' into an extraction space and Adjacent to an overhanging restoration

c. On teeth that serve as abutments to partial dentures

d. On teeth that serve as abutments for bridge retainers

27 / 60

Anchoring fibrils are found?

a. Between the lamina densa and the lamina lucida

b. In the connective tissue adjacent to the lamina densa

c. Between the lamina densa and the lamina lucida Between the epithelial cell surface and the lamina lucida

d. Between the epithelial cell surface and the lamina lucida

28 / 60

All of the following are true about fibroblasts except:

a. Fibroblasts synthesize collagen.

b. fibroblasts are principal connective tissue cells of the periodontal ligament.

c. Fibroblasts are not capable of phagocytosis for collagen destruction.

d. Fibroblasts have pseudopodia like processes

29 / 60

Dental calculus:?

a. Contains predominantly crystals ofhydroxyapatite when mature

b. Does not contain bacteria

c. Is a causative agent in periodontitis& Forms on the coronal aspects of teeth only

d. Is plaque that has become mineralised with ionsfrom gingival crevicular fluid

30 / 60

The primary cause of periodontal diseases is?

a. Faulty restoration

b. Dental Plaque

c. Calculus

d. Malocclusion

31 / 60

Pockets extending into areas of vertical bone loss are called:

a. infrabony pockets.

b. pseudo pockets.

c. alveolar pockets.

d. suprabony pockets.

32 / 60

The mucogingival junction is located between the:

a. Attached gingiva and alveolar mucosa

b. Free gingival and attached gingiva

c. Base of the sulcus and alveolar mucosa

d. Fee gingival and tooth

33 / 60

Guided tissue regeneration (GTR):

a. Is indicated in class I furcation defects

b. Is dependent on the formation of a stable blood clot for best results

c. Requires the use of a non-resorbable membrane (e.g. ePTFE) for best results in osseointegration

d. Typically results in clinical improvements in probing depths, attachment levels and gingival recession

34 / 60

The gingival sulcus develops:

a. When the complete crown has erupted

b. When the crown penetrates oral mucosa

c. When3/4 of the crown has erupted

d. When ½ of the crown has erupted

35 / 60

Determination of the shape and extent of defects in the alveolar bone can be made by:

a. conventional probing methods.

b. sounding through the gingiva.

c. all of the above.

d. direct inspection during periodontal surgery.

36 / 60

In CPITN:

a. Pocketing of 6mm or more, that is when the gingival margin is on the black area of the probe is code no. 4.

b. The dentition is divided into five segments. and Pocketing of 4-5 mm, that is, when the gingival margin is on the clear area is code no. 3.

c. For appropriate treatment plan code 2 requires improvement in home care.

d. For appropriate treatment plan code 3 require supra and subgingival scaling and improvement in home care.

37 / 60

Which portion of the tooth germ is the primary source of the junctional epithelium?

a. Stellate reticulum, Stratum intermedium

b. Outer enamel epithelium

c. Stratum intermedium

d. Stellate reticulum

38 / 60

The radiographic findings of gingivitis will Demonstrate:

a. Horizontal bone loss

b. Change in bone trabeculation

c. Vertical bone loss

d. Normal bone pattern

39 / 60

Dcntogingival unit comprises:

a. Periodontal fibers and ligament

b. Gingival fiber and junctiona1 epithelium

c. Gingival fibers

d. None of the above

40 / 60

Which of the following is not a clinical feature of necrotizing ulcerative gingivitis:

a. All of the above

b. Pain

c. Spontaneous bleeding

d. Pocket formation

41 / 60

A test that can be used for typing of class I histocompatibility antigens is:?

a. Donor-recepient mixed lymphocyte response

b. Primed lymphocyte typing

c. Antibody and complement mediated cytotoxicity

d. Cell mediated Lympholysis (CML)

42 / 60

Gingival inflammation involving the entire attached gingiva is termed:

a. diffuse

b. marginal.

c. generalized.&severe.

d. papillary.

43 / 60

The anchoring fibrils are composed of what type of collagen?

a. Type VII

b. Type I

c. Type IV

d. Type I Type IV

44 / 60

Reevaluation of the response to removal of local etiologic factors should be performed:

a. only when the patient requests it.

b. at the end of the initial therapy phase.

c. only during the maintenance phase.

d. throughout the initial preparation stage.

45 / 60

In periodontal disease, ground substance is dissolved by:?

a. Coagulase

b. Hyaluronidase

c. Phosphorylase

d. Acid phosphatase

46 / 60

Periodontal attachment loss detect clinically:

a. When there is true pocket only.

b. When there is radiographic alveolar bone loss.

c. When there is recession and/or true pocket

d. When there is recession only.

47 / 60

During a sequence of scaling appointments the most advantageous approach is to:

a. anesthetize the entire mouth.

b. scale the entire mouth at each appointment.

c. thoroughly scale and root plane a designated segment to completion.

d. only give anesthesia for areas of depth over 6 mm.

48 / 60

The most common disease found in the embalmed bodies of ancient Egyptians:

a. Periodontal disease

b. Rickets

c. Arthritis

d. Dental caries

49 / 60

Dentogingival unit:

a. Is junctional epithelium and gingival fibers.

b. Is sulcular epithelium and gingival fibers.

c. Is sulcular epithelium and periodontal fibers.

d. Is junctional epithelium and periodontal fibers. and Is oral epithelium and gingival fibers.

50 / 60

In periodontal health:

a. Gingival crevicular fluid (GCF) is absent,Teeth show no mobility

b. The alveolar bone crest is at the same level as the cementoenamel junction

c. The width of keratinised gingiva is the same through the mouth

d. There are no periodontal pockets

51 / 60

The best way to examine the dorsum of the tongue is to:

a. use a dental mirror for indirect vision.

b. extend the tongue fully by grasping with a dry gauze square and use direct vision.

c. palpate between the thumb and index finger.

d. ask patient to say "ah" and depress tongue with mouth mirror.

52 / 60

Alterations of gingival contours are mostly Associated with:

a. Desquamation

b. Recession

c. Enlargement

d. Atrophy

53 / 60

Plaque Index was developed by:

a. Loe and Silness in 1964

b. Silness and Loe in 1964

c. None of the above

d. Russell in 1956

54 / 60

Subclinical gingivitis is:

a. Characterized by predominantly plasma cells microscopically. and Characterized by erythema, bleeding on probing.

b. Characterized by increased crevicular fluid flow and infillration of sulcular and junctional epithelium by polymorphonuclearleukocytes.

c. Characterized by predominantly lymphocytes microscopically.

d. Characterized by vascular proliferation.

55 / 60

Sulcular fluid is:

a. none of the above

b. an inflammatory exudate.

c. a transudate

d. derived from saliva

56 / 60

Most commonly used periodontal pack is/are:

a. Zinc oxide Eugenol pack.

b. Non Eugenol pack.

c. Non Eugenol pack & Coe-Pack .

d. Coe-Pack.

57 / 60

Calculus roughened by the file should be subsequently removed with the:

a. modified sickle.

b. curet.

c. straight sickle.

d. hoe.

58 / 60

The two types of wrist-forearm motion are:

a. side-to-side and down-and-up.

b. intraoral and extraoral.

c. vertical and horizontal.

d. parallel and perpendicular.

59 / 60

Greater occlusal pressure on the periodontium produces:

a. A gradation of changes in periodontal ligament starting with tension of fibers which produce areas of fibrosis.

b. Disintegration of blood vessels within 30 minutes. and Disintegration of blood vessels within 05 minutes.

c. Increased resorption of alveolar bone and formation of cementum.

d. Injury to fibroblasts and other connective tissue cells lead to necrosis of areas of the ligament.

60 / 60

The air syringe is held with a:

a. pen grasp, third finger grasp.

b. palm grasp,

c. modified palm grasp.

d. modified pen grasp.

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The average score is 0%

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