Dent 1010 T#2 Flashcards Preview

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Flashcards in Dent 1010 T#2 Deck (50):
1

Extrinsic stain that can become an EXOGENOUS INTRINSIC stain due to DEMINERALIZATION:
A) Yellow
B) Black
C) Green

C) Green

2

Mature (14-21 DAYS) bacterial plaque has the following microorganisms:
A) Rods and cocci
B) Vibrios and spirochetes
C) Lactobacillus and filamentos

B) Vibrios and spirochetes

3

The only ACELLULAR soft deposit is:
A) Materia alba
B) Pellicle
C) Calculus

B) Pellicle

4

The following are factors INCREASING plaque accumulations EXCEPT:
A) Crowded teeth
B) Carious lesions
C) Smooth surfaces

C) Smooth surfaces

5

A pocket formed by GINGIVAL ENLARGEMENT without apical migration of the junctional epithelium is which of the following?
A) Absolute pocket
B) Pseudopocket
C) Periodontal pocket

B) Pseudopocket

6

The source of minerals for SUBGINGIVAL calculus is:
A) Saliva
B) Blood
C) Gingival sulcular fluid

C) Gingival sulcular fluid

7

Which of the following structures is NONKERATINIZED?
A) Hard palate
B) Interdental papillae
C) Sulcular epithelium

C) Sulcular epithelium

8

Caries that progress very RAPIDLY and can result in PULP involvement:
A) Arrested
B) Chronic
C) Acute

C) Acute

9

Decay located UNDERNEATH a restoration is classified as:
A) Acute
B) Chronic
C) Recurrent

C) Recurrent

10

BLACK-LINE stains have the following characteristics EXCEPT:
A) Highly retentive
B) Prominent in females
C) Poor oral hygiene

C) Poor oral hygiene

11

The DEPRESSION between the lingual and facial papillae that conforms with the proximal CONTACT area is termed:
A) Col
B) Papillae
C) Embrasure

A) Col

12

EARLY bacterial biofilm is associated with
A) Gram-positive cocci and rods
B) Gram-negative filamentous forms
C) Anaerobic microflora

A) Gram-positive cocci and rods

13

Bacterial BIOFILM causesL
A) Caries
B) Periodontal disease
C) Gingivitis
D) All of the above

D) All of the above

14

A pocket in which the base of the pocket is below or APICAL to the CREST OR THE ALVEOLAR BONE is called a:
A) Suprabony pocket
B) Infrabony pocket
C) Occlusabony pocket

B) Infrabony pocket

15

Which one of the following micro-organisms has been implicated in the dental caries process mainly as INITIATORS?
A) Streptococcus salivarius
B) Streptococcus mitis
C) Streptococcus mutans

C) Streptococcus mutans

16

A mesial cavity in a PREMOLAR tooth is an example of a:
A) Class I restoration
B) Class II restoration
C) Class III restoration

B) Class II restoration

17

NARROW SLIT like areas of gingival recession over the roots of teeth are know as:
A) Clefts
B) Craters
C) Festoons

A) Clefts

18

All of the following describe SUPRAGINGIVAL calculus EXCEPT:
A) Its nutrients sources are gingival crevicular fluid and inflammatory exudate
B) Its color can vary depending on agents that pigment it
C) It's commonly located on the facial of maxillary molars

A) Its nutrients sources are gingival crevicular fluid and inflammatory exudate

19

Which of the following local factor(s) are implicated in the ETIOLOGY of periodontal disease?
A) Calculus
B) Mouth breathing
C) Tooth malposition
D) Faulty restorations
E) All of the above

E) All of the above

20

The ATTACHMENT APPARATUS includes all of the following periodontal tissues EXCEPT:
A) Dental pulp
B) Periodontal ligament
C) Cementum

A) Dental pulp

21

Clinically, the LABIAL ATTACHED GINGIVA is identified coronally by the free gingival groove and apically by the:
A) Lamina dura
B) Basal lamina
C) Mucogingival junction

C) Mucogingival junction

22

Gingival recession is a RISK factor for all of the following EXCEPT:
A) Occlusal caries
B) Loss of cementum
C) Loss of tooth structure

A) Occlusal caries

23

The most plentiful INORGANIC component of CALCULUS is:
A) Magnesium phosphate
B) Calcium phosphate
C) Hydroxyapatite

C) Hydroxyapatite

24

The two EARLIEST signs of gingival inflammation preceding established gingivitis are:
A) Increased collagen fibers and vascularity
B) Increased gingival fluid and bleeding on probing the sulcus
C) Gingival recession and increased bleeding on probing the sulcus

B) Increased gingival fluid and bleeding on probing the sulcus

25

An ENLARGEMENT of the marginal gingiva with the formation of a LIFESAVER-LIKE gingival prominence is:
A) Stillman's crest
B) McCall's festoon

B) McCall's festoon

26

1. "White spot" or INCIPIENT caries lesions may be visualized by drying the tooth in question.
2. These lesions may be REMINERALIZED.k
A) The first statement is true, and the second statement is false
B) The first statement is false, and the second statement is true
C) Both statements are true
D) Both statements are false

C) Both statements are true

27

The critical PH at which DEMINERALIZATION of the enamel occurs is:
A) 2.0
B) 5.5
C) 7.0

B) 5.5

28

The principal site for the growth of spirochetes, fusobacteria, and other ANAEROBES is:
A) Supragingival dental plaque
B) The gingival margin
C) The gingival sulcus

C) The gingival sulcus

29

The protocol of REMINERALIZATION inludes:
A) Fluoride
B) Chlorohexidine
C) Both A and B

C) Both A and B

30

CAVITATION can be detected by:
A) Scratching the surface of areas with slight roughness
B) Using gentle air blasts to loosen biofilm
C) Bitewing radiographs for cavities in proximal surfaces

C) Bitewing radiographs for cavities in proximal surfaces

31

DENTAL DECAY is dependent on the following, EXCEPT:
A) Host topography
B) Microorganisms
C) Age

C) Age

32

Objectives for CARIES MANAGEMENT consists of:
A) Determining the patient's restorative treatment needs
B) Determining the areas that require remineralization
C) Identifying risk factors
D) All of the above

D) All of the above

33

The microorganism prevalent in JUVENILE PERIODONTITIS is:
A) AAA
B) ABC

A) AAA

34

CLASS II FURCATION is characterized by:
A) Exposure of the root surface resulting from gingival recession
B) Probe passing from buccal to lingual between the roots
C) Probe enters but does not pass through furcation

C) Probe enters but does not pass through furcation

35

Each of the following is a FUNCTION OF SALVIVA, EXCEPT:
A) The protective factors can balance or reverse the destruction of the tooth structure
B) Its buffering properties neutralize the acid produced by the bacteria
C) The minerals in the saliva an go back into the tooth for remineralization
D) One of the naturally occurring mineral components of saliva is fluoride

D) One of the naturally occurring mineral components of saliva is fluoride

36

TRUE or FALSE
TETRACYCLINES are responsible for endogenous intrinsic stains.

True

37

TRUE or FALSE
CLASS IV cavities are found in pits and fissures

False

38

TRUE or FALSE
JUVENILE PERIODONTITIS is caused by impaired neutrophil function.

True

39

TRUE or FALSE
A patient with DENTAL FLUOROSIS will tend to have less decay.

True

40

TRUE or FALSE
Chewing gum containing XYLITOL has been shown to help the reversal of decalcification.

True

41

TRUE or FALSE
FREQUENCY OF SUCROSE ingestion will have no bearing or effect on tooth decay.

False

42

TRUE or FALSE
SUBGINGIVAL calculus is primarily related to the development and progression of periodontal disease.

True

43

TRUE or FALSE
The JUNCTIONAL EPITHELIUM is not keratinized.

True

44

TRUE or FALSE
CHLOROHEXIDINE can cause a brown stain.

True

45

TRUE or FALSE
Patients having FIBROTIC GINGIVA do not have deep pockets.

False

46

TRUE or FALSE
CAL is solely determined by the probing depth.

False

47

TRUE or FALSE
Fluorosis causes an EXTRINSIC STAIN.

False

48

TRUE or FALSE
PYROPHOSPHATE is present on patients that develop calculus quickly.

False

49

TRUE or FALSE
CALCULUS can be dried by using the air/water syringe and looks chalky white.

True

50

TRUE or FALSE
MATERIA ALBA can be removed by rinsing with water.

True