Periodontology Quiz

Anatomy & Histology

100

• The specific connective tissue fibers that are embedded into both the cementum and the alveolar bone to secure the tooth.

What are Sharpey’s fibers?

200

This structural dimension includes the combined heights of the junctional epithelium and the supra-alveolar connective tissue fibers, typically averaging about 2mm

What is the biological width?

300

This is the most numerous group of principal periodontal ligament fibers, responsible for resisting vertical masticatory and intrusive forces.

What are the oblique fibers?

400

• The component of the alveolar process that is also known as the cribriform plate, appearing radiographically as the lamina dura.

What is the alveolar bone proper?

Classification (AAP Guidelines)

200

• The dimension that tracks the rate of disease progression and incorporates systemic risk factor modifiers like smoking and diabetes control.

What is Grading?

300

A patient presenting with 3 to 4 mm of interdental clinical attachment loss (CAL) and horizontal bone loss restricted to the coronal third of the root is classified under this stage

What is Stage II periodontitis?

500

• Under the current AAP Classification, this multidimensional category determines disease severity and management complexity, ranging from Stage I to Stage IV.

What is Staging?

Etiology & Pathogenesis

100

• This organic, acellular layer begins forming on a clean tooth surface within minutes of brushing via salivary glycoprotein absorption.

What is the acquired pellicle?

200

• the primary objective sign of gingival inflammation during a clinical examination.

What is bleeding on probing

500

This red-complex, anaerobic, rod-shaped bacterium is heavily associated with chronic periodontitis and produces gingipains to degrade host tissues

What is Porphyromonas gingivalis associated with?

Instruments & Procedures

100

• This specific type of curved, color-coded probe is utilized exclusively for measuring and classifying furcation involvements.

What is a Nabers probe?

300

• This surgical concept blocks epithelial down-growth using a physical barrier membrane, allowing slower-moving PDL and bone cells to repopulate the root surface.

What is Guided Tissue Regeneration (GTR)?

500

This host-modulating drug is delivered at a sub-antimicrobial dose (20mg twice daily) to inhibit collagenase and matrix metalloproteinases (MMPs) rather than kill bacteria.

What is sub-antimicrobial dose of Doxycycline indicated for?

Clinical Math & Diagnosis

100

• This condition is diagnosed when an implant shows visual signs of inflammation and bleeding on probing, but demonstrates zero progressive marginal bone loss.

What is peri-implant mucositis?

300

A localized, purulent infection within the periodontal tissues that is uniquely associated with a tooth that tests positive for pulp vitality.

What is a periodontal abscess?

500

This single clinical measure—defined as the boundary line separating the attached gingiva from the alveolar mucosa—limits the apical boundary of where a standard gingivectomy can be successfully performed.

What is the mucogingival junction (MGJ)?