Periodontology

Question 1

Which of the following is most likely to predispose a patient to periodontal disease?
A - malocclusion
B - pregnancy
C - poor diet
D - diabetes
E - intravenous drug abuse

Answer 1

D - Diabetes

Question 2

A 33 year old woman with down syndrome presents to her dental practice for a checkup. Clinical examination reveals that she has multiple periodontal pockets, with extensive periodontal bone loss around many teeth.
Which of the following is most likely to cause a similar periodontal disease in the permanent dentition?
A - apert syndrome
B - chediak goltz syndrome
C - gorlin goltz syndrome
D - papillon levefre syndrome
E - ramsay hunt syndrome

Question 3

While performing periodontal screening on a 26 year old woman, you came up with the BPE score of 3 in all sextants. X rays show no significant bone loss. the patient has been smoking 20 a day for 5 years, she is epileptic and takes phenytoin. Which of the following best explains your clinical findings?
A - there are infrabony pockets
B - there are suprabony pockets
C - there are 3-walled pockets
D - there are 2 walled pockets
E - there are 1 walled pockets

Answer 3

B - there are suprabony pockets

also known as false pockets due to ginigval enlargement: can be caused by phenytoin medication. Other medications that can cause this include cylcosporin and nifedipine.

Question 3

While performing periodontal screening on a 26 year old woman, you came up with the BPE score of 3 in all sextants. X rays show no significant bone loss. the patient has been smoking 20 a day for 5 years, she is epileptic and takes phenytoin. Which of the following best explains your clinical findings?
A - there are infrabony pockets
B - there are suprabony pockets
C - there are 3-walled pockets
D - there are 2 walled pockets
E - there are 1 walled pockets

Answer 3

B - there are suprabony pockets

also known as false pockets due to ginigval enlargement: can be caused by phenytoin medication. Other medications that can cause this include cylcosporin and nifedipine.

Question 4

Which collagen fibre is the main type found in the PDL?
A - I
B - II
C - III
D - IV
E - V

Answer 4

A - I

Question 5

What percentage of sites with BoP will turn into further periodontal pocketing?
A - 0%
B - 30%
C - 50%
D - 70%
E - 100%

Answer 5

B - 30%

Question 6

A 22 year old biochemistry student attends her dental practice for an oral hygiene session. she asks out of curiosity, how plaque attaches to teeth. You explain to her that a biofilm is involved in the process. Which of the following is correct regarding the biofilm?
A - the initial adhesion of the micro-organisms is via structures such as pili
B - all species must be able to adhere to the tooth surface
C - the external bacteria become anaerobic
D - the biofilm is held together and protected by an extracellular matrix
E - the composition of the biofilm is not dependent upon position in the mouth

Answer 6

D - the biofilm is held together and protected by an extracellular matrix

Question 7

Early colonisers - anaerobic or aerobic?

Answer 7

Aerobic

Question 8

Name some early coloniser species

Answer 8

Gram positive aerobes such as Staphlycoccus and Streptococi

Question 9

What are the Tx options for a grade 3 furcation?

Answer 9

Tunnel preparation
Hemisection
Root resection

Question 10

What is the predominant cell in periodontitis?

Answer 10

B cells