AGD Periodontics and Gum Health Questions and Answers

Question 1

A 28-year-old patient presents for a consultation regarding a 'long tooth' on #11.
Clinical examination reveals a 4mm recession defect.
The recession extends to the mucogingival junction, but there is no loss of interdental bone or soft tissue.
The interdental papillae are fully intact.
According to Miller's classification, how would this recession be classified?

Accepted Answer

Class II

Answer

Class I

Answer

Class III

Answer

Class IV

Question 2

A 58-year-old male with poorly controlled type 2 diabetes (HbA1c of 9.5%) presents with generalized 5-7 mm probing depths, bleeding on probing, and radiographic evidence of moderate horizontal bone loss. What is the primary mechanism by which his diabetic condition exacerbates his periodontal disease?

Accepted Answer

An impaired host inflammatory and immune response leads to exaggerated tissue destruction.

Answer

Increased salivary glucose levels directly promote pathogenic bacterial growth.

Answer

Diabetic neuropathy reduces the patient's ability to feel early symptoms of gingivitis.

Answer

Systemic insulin resistance directly weakens the periodontal ligament fibers.

Question 3

Which of the following is the most appropriate initial treatment for a patient presenting with an acute periodontal abscess on tooth #19, which is vital and has a pre-existing 7mm periodontal pocket? The patient reports localized pain and swelling but is afebrile.

Accepted Answer

Establish drainage through the pocket and perform scaling and root planing.

Answer

Prescribe a course of systemic antibiotics only.

Answer

Perform immediate extraction of the tooth.

Answer

Initiate root canal therapy.

Question 4

According to the 2017 AAP/EFP classification of periodontal diseases, the distinction between 'chronic' and 'aggressive' periodontitis has been eliminated. Instead, a staging and grading system is used. What does the 'Grade' of periodontitis primarily represent?

Accepted Answer

The rate of disease progression and anticipated response to therapy.

Answer

The severity of attachment loss at the time of diagnosis.

Answer

The complexity of managing the case, including tooth loss and furcation involvement.

Answer

The number of teeth affected by periodontitis in the dentition.

Question 5

A 19-year-old patient presents with severe, rapid attachment loss and deep vertical bone loss localized to the first molars and incisors. The amount of microbial plaque is minimal and seems inconsistent with the severity of destruction. This clinical presentation is most characteristic of which historical diagnosis?

Accepted Answer

Localized Aggressive Periodontitis

Answer

Chronic Periodontitis

Answer

Necrotizing Ulcerative Periodontitis

Answer

Gingivitis associated with dental plaque only

Question 6

Which of the following bacterial species has historically been most strongly implicated as a key pathogen in localized aggressive periodontitis?

Accepted Answer

Aggregatibacter actinomycetemcomitans

Answer

Porphyromonas gingivalis

Answer

Treponema denticola

Answer

Tannerella forsythia