Deck 15: Oral Hygiene Assessment: Soft and Hard Deposits

Question 1

What is defined as a host-associated biofilm,as well as a dense,nonmineralized mass of bacterial colonies enclosed in a slime matrix and attached to a moist environment?

A) Materia alba
B) Bacterial plaque
C) Food debris
D) Calculus

Answer 1

Bacterial plaque

Question 2

What is the first stage in oral biofilm formation?

A) Initial adherence
B) Lag phase
C) Rapid growth bacterial
D) Steady state

Answer 2

Initial adherence

Question 3

All of the following are characteristics of the ideal disclosing agent except which one?

A) Provides a distinct staining of deposits that does not rinse off immediately
B) Has a pleasant taste
C) Is nonirritating to the oral tissues
D) Is antibacterial

Answer 3

Is antibacterial

Question 4

All of the following tooth stains can be removed by scaling or selective polishing except which one?

A) Chromogenic bacteria stain
B) Extrinsic tooth stain
C) Intrinsic tooth stain
D) Chlorhexidine gluconate and cetylpyridinium chloride stain

Question 5

Because disclosants can _____ clinical signs of disease,disclosing agents should be applied after the oral and periodontal assessment and after the client sees the oral findings in his or her own mouth.

A) Aggravate
B) Camouflage
C) Allay
D) Mimic

Question 6

In advancing periodontal disease,subgingival oral biofilm is characterized by all of the following except which one?

A) A zone of gram-positive organisms attached to the tooth
B) A loosely adherent zone of gram-negative species attached to the pocket wall
C) Predominance of bacteria such as Porphyromonas gingivalis,Prevotella intermedia,Tannerella forsythensis,Treponema denticola,and others
D) Mutans streptococci

Question 7

All of the following are extrinsic tooth stains except which one?

A) Black line
B) Tetracycline stain
C) Wine
D) Tobacco

Question 8

The slime layers that form to protect the biofilm community of microorganisms predominately contain which of the following?

A) Neutrophils
B) Macrophages
C) Lipopolysaccharides
D) Polymorphonuclear leukocytes

Question 9

What bacteria predominate in early bacterial plaque that is 1 to 2 days old?

A) Anaerobic gram-positive cocci
B) Aerobic gram-positive cocci
C) Aerobic gram-negative cocci
D) Anaerobic gram-negative cocci

Question 10

What percent of the population shows clinical evidence of some type of periodontal disease (including gingivitis)?

A) 10% to 20%
B) 20% to 50 %
C) 50% to 90%
D) 60% to 70 %

Question 11

All of the following statements about oral biofilm are false except which one?

A) A biofilm is easily influenced by host-mediating factors.
B) Biofilm-associated bacteria are vulnerable and unlikely to survive past the steady-state stage.
C) Biofilm-associated bacteria are dependent on the host for survival,much like a parasite.
D) Biofilm-associated bacteria are resistant to antibiotics and antimicrobial agents.

Question 12

Which of the following bacteria primarily are associated with periodontal health?

A) Anaerobic gram-positive rods and cocci
B) Aerobic gram-positive rods and cocci
C) Aerobic gram-negative rods and cocci
D) Anaerobic gram-negative rods and cocci

Question 13

What type of bacteria is associated primarily with advancing periodontal disease?

A) Anaerobic
B) Aerobic
C) Anaerobic and aerobic
D) Facultative

Question 14

The host's normal response to injury (inflammation)and to foreign bodies (the immune response)is activated in the presence of a microbial challenge.It is the effects of proinflammatory mediators produced during chronic inflammation and inability of the immune system to reach the site of injury or infection that cause the connective tissue and bone destruction in periodontal disease.

A) Both statements are true.
B) The first statement is true,and the second statement is false.
C) The first statement is false,and the second statement is true.
D) Both statements are false.

Question 15

What is the term for a loosely attached collection of oral debris,desquamated epithelial cells,leukocytes,salivary proteins and lipids,and bacteria that is seen as a whitish to yellowish to grayish mass on the teeth or overlying oral biofilm?

A) Bacterial plaque
B) Food debris
C) Materia alba
D) Calculus

Question 16

Oral hygiene assessment conducted by a dental hygienist includes observation and measurement of hard and soft deposits on the teeth using all of the following except which one?

A) Severity
B) Location
C) Degree (amount)
D) Extent

Question 17

Middle-aged women with good oral hygiene are the most likely population to have which of the following?

A) Chromogenic stain
B) Intrinsic stain
C) Black-line stain
D) Brown stain

Question 18

All of the following may cause subgingival calculus to be dark in color (dark tan,brown,or black)except which one?

A) Type of bacteria it is made of
B) Absorption of blood products
C) Melanin pigmentation
D) Foods and drinks that can cause extrinsic tooth stain

Question 19

Bacterial species associated with dental-plaque-induced gingival disease include all of the following except which one?

A) Fusobacterium nucleatum
B) Prevotella intermedia
C) Campylobacter rectus
D) Streptococcus mitis

Question 20

All of the following factors support the daily growth and retention of oral biofilm except which one?

A) Calculus
B) Orthodontic band
C) Mouth breathing
D) Frequent continued-care intervals

Question 21

All of the following may cause brown tooth stain if used for a long enough period of time except which one?

A) 0.12% Chlorhexidine gluconate mouth rinses
B) Stannous fluoride dentifrices (some formulations)
C) 0.07% Cetylpyridinium chloride mouth rinses
D) Sodium fluoride mouth rinses and dentifrices

Question 22

All of the following are used at home by the client for self-monitoring oral biofilm accumulation except which one?

A) Dental explorer
B) Bleeding points or areas
C) Disclosant
D) Senses of smell,feel,and sight

Question 23

Persons who are low calculus formers may have which of the following chemical or minerals in their saliva that inhibit calculus formation?

A) Octocalcium
B) Pyrophosphate
C) Calcium and phosphorous
D) Whitlockite and brushite

Question 24

About 20% of the oral cavity is occupied by teeth,and about 80% is occupied by soft tissue.Oral biofilm grows only on teeth.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true;the second statement is false.
D) The first statement is false;the second statement is true.

Question 25

Which of the following teeth are known as the Ramfjord teeth?

A) All eight central incisors from both maxillary and mandibular arches
B) All four first molars and all four central incisors from both maxillary and mandibular arches
C) Maxillary right and mandibular left first molars,maxillary left and mandibular right first premolars,and maxillary left and mandibular right central incisors
D) One of each from the maxillary and mandibular arch: central,canine,premolar,and molar