Biofilm And Calculus Quiz Flashcards
Calculus is considered a risk factor because:
Question 1 Select one:
a.Calculus is the primary cause of periodontal disease
b. The surface of calculus can damage the adjacent soft tissue through direct trauma
c. The surface of calculus is irregular and provides a place for bacteria to grow undisturbed
d. The bacteria derive many of their needed nutrients from the hard calculus deposits
The surface of calculus is irregular and provides a place for bacteria to grow undisturbed
Dental calculus is mineralised petrified dental plaque and does not directly cause to progression of periodontal disease
Question 2 Select one:
a. True
b. False
a. True
Kate attends the dental surgery presenting complaining that she always forms calculus on her lower anterior linguals and upper buccal molars. You reassured Kate with the following information (Select the most appropriate answer)
Question 3 Select one:
a. Kate is predisposed to forming calculus in these areas
b. Kate is more at risk for forming calculus in these areas as they are located near salivary glands
c. There is a genetic link on where people form calculus
d. Kate is may have a high calcium diet and this means she will make more calculus
e. Kate is just unlucky
Kate is more at risk for forming calculus in these areas as they are located near salivary glands
Methods of calculus detection are:
Question 4 Select one or more:
a. Vision
b. Probing
c. Asking the patient to let you know
d. Radiographs
Vision, Probing, Radiographs
Sam has had several crowns and implants fitted seven months ago. He has only attended the dental hygiene appointment for the first time since the prosthesis were fitted. (Select the most appropriate answer)
Question 5 Select one:
a. Sam only needs to attend appointments when relevant as plaque and calculus growth rate is slowed on prosthetic appliances
b. Sam is able to provide his own self care plan and use over the counter tools to maintain his prosthetic appliances.
c. Sam is at risk of plaque and calculus growth on his prosthetic appliances and must attend dental hygiene appointments regularly
Sam is at risk of plaque and calculus growth on his prosthetic appliances and must attend dental hygiene appointments regularly
Supra and sub gingival calculus both derive their minerals from saliva
Question 6 Select one:
a. True
b. False
False
The composition of dental calculus consists of organic & inorganic substances
Question 7 Select one:
a. False
b. True
True
The composition of inorganic material in dental calculus is 10-30%
Question 8 Select one:
a. False
b. True
False
(It’s 70-80%)
Which of the following is NOT a mechanism for attachment of calculus to a tooth surface?
Question 9 Select one:
a. Attachment by direct contact of the calcified component and the tooth surface
b. Attachment to the blood clots that can form on the tooth
c. Attachment to irregularities that occur in the surface of a tooth
d. Attachment by means of pellicle
Attachment to the blood clots that can form on the tooth
A well-organized community of bacteria that adheres to surfaces and is embedded in an extracellular slime layer is termed:
Question 1 Select one:
a. Anaerobic
b. Aerobic
c. Biofilm
d. Bacterial microcolony
Biofilm
Bacteria attachment zones can be defined into distinct areas, select the most appropriate response:
Question 2 Select one:
a. Dorsum and ventral
b. Enamel, cementum and dentine
c. Supra and sub gingival
d. Anterior and posterior
e. Tooth attached, tissue attached and unattached
Tooth attached, tissue attached and unattached
Bacteria that have a double cell membranes and that do not stain purple with crystal violet are called:
Question 3 Select one:
a. Gram positive
b. Anaerobic
c. Gram Negative
d. Aerobic
Anaerobic
Microbial plaque is considered the primary cause of periodontal disease:
Question 4 Select one:
a. True
b. False
True
Plaque biofilms are best removed by using mouthwash and adjustive chemical agents
Question 5 Select one:
a.
True
b.
False
False
The term biofilm can be defined as a complex dynamic microbial community embedded within extracellular matrix
Question 6 Select one:
a.
True
b.
False
True
The term biofilm can be defined as a simple dynamic microbial community embedded within extracellular matrix
Question 7 Select one:
a.
False
b.
True
False
Which of the following would be most effective in controlling the bacteria in a dental plaque biofilm?
Question 8 Select one:
a.
Very high doses of an antibiotic
b.
Antimicrobial agent
c.
Systemic antibiotic (an antibiotic pill)
d.
Toothbrush and floss
Toothbrush and floss
Which structure of a biofilm facilitates the movement of nutrients to the bacteria?
Question 9 Select one:
a.
Acquired pellicle
b.
Fluid channels
c.
Primitive communication system
d.
Extracellular slime layer
Fluid channels
