Periodontics Flashcards
6 cards from real INBDE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Periodontics flashcards as text
Which type of bone defect has the best prognosis for regeneration?
Answer: Three-wall (intrabony) defect
Three-wall intrabony defects have the best regenerative prognosis because three bony walls provide maximum blood supply, stability, and a scaffold for regeneration.
Which periodontal classification was adopted by the AAP/EFP World Workshop in 2017?
Answer: Stage and Grade classification
The 2017 AAP/EFP World Workshop introduced the Stage (I–IV) and Grade (A–C) classification system to replace the previous aggressive/chronic periodontitis terminology.
Guided tissue regeneration (GTR) works by:
Answer: Excluding epithelium and allowing periodontal ligament cells to repopulate the root surface
GTR uses barrier membranes to prevent fast-growing epithelial and gingival connective tissue cells from occupying the defect space, allowing slower PDL and bone cells to regenerate.
Necrotizing ulcerative gingivitis (NUG) is characterized by:
Answer: Punched-out interdental papillae, pseudomembrane, and fetid breath
NUG presents with necrosis and ulceration of interdental papillae (giving a 'punched-out' appearance), a gray pseudomembrane, fetid breath, and pain.
Which systemic disease is associated with cyclosporine-induced gingival overgrowth?
Answer: Organ transplantation
Cyclosporine is an immunosuppressant used in organ transplant patients; it causes gingival overgrowth in about 25–30% of patients through altered fibroblast metabolism.
Clinical attachment level (CAL) is calculated as:
Answer: Probing depth plus recession (distance from CEJ to gingival margin)
CAL = probing depth + recession (when the gingival margin is apical to the CEJ), giving a true measure of attachment loss from the CEJ.