NBDHE Periodontal Assessment and Treatment Questions and Answers

Question 1

A patient presents with a probing depth of 6 mm on the mesial-buccal of tooth #30.
The gingival margin is located 2 mm coronal to the cementoenamel junction (CEJ).
What is the calculated clinical attachment loss (CAL) for this site?

Accepted Answer

4 mm

Answer

2 mm

Answer

6 mm

Answer

8 mm

Question 2

Which of the following is considered the primary etiologic factor for periodontal disease?

Accepted Answer

Bacterial plaque biofilm

Answer

Genetic predisposition

Answer

Tobacco use

Answer

Poorly controlled diabetes

Question 3

During a periodontal assessment of a multi-rooted tooth, the dental hygienist can detect the furcation with a Nabers probe, but it does not pass completely through. The bone between the roots is intact, allowing only partial penetration. According to Glickman's classification, this is classified as:

Accepted Answer

Class II Furcation

Answer

Class I Furcation

Answer

Class III Furcation

Answer

Class IV Furcation

Question 4

A patient is scheduled for a 4-6 week re-evaluation following non-surgical periodontal therapy (NSPT). Which of the following clinical signs is the BEST indicator of successful initial therapy?

Accepted Answer

Absence of bleeding on probing

Answer

Significant reduction in tooth mobility

Answer

Formation of a long junctional epithelium

Answer

Patient's reported improvement in oral hygiene

Question 5

All of the following are considered non-modifiable risk factors for periodontal disease EXCEPT:

Accepted Answer

Stress

Answer

Age

Answer

Genetic predisposition

Answer

Osteoporosis

Question 6

When performing periodontal probing, which technique is recommended to ensure the entire sulcus is assessed?

Accepted Answer

Using a 'walking' stroke in 1 mm increments

Answer

Applying firm pressure to feel the bony crest

Answer

Angling the probe 45 degrees into the contact area

Answer

Taking a single measurement at the center of each facial and lingual surface