INBDE Periodontics 2 — Questions and Answers
Question 1: The Ramfjord teeth used for periodontal epidemiological studies are:
- First molars only
- Teeth #3, #9, #12, #19, #25, #28 (Correct answer)
- All posterior teeth
- First molars and central incisors
Correct answer: Teeth #3, #9, #12, #19, #25, #28
The Ramfjord index teeth (#3, #9, #12, #19, #25, #28) represent all six tooth types and both arches, allowing efficient periodontal assessment in epidemiological surveys.
Question 2: Osseous surgery in periodontics involves resection of bone to:
- Create positive osseous architecture (Correct answer)
- Fill infrabony defects
- Stimulate bone regeneration
- Increase attached gingiva
Correct answer: Create positive osseous architecture
Positive osseous architecture (where interproximal bone is higher than facial/lingual bone) is the physiologic ideal achieved through osteoplasty and ostectomy.
Question 3: Which drug used for seizure management commonly causes gingival enlargement?
- Valproic acid
- Phenytoin (Dilantin) (Correct answer)
- Carbamazepine
- Phenobarbital
Correct answer: Phenytoin (Dilantin)
Phenytoin-induced gingival overgrowth occurs in approximately 50% of patients and is related to altered gingival fibroblast metabolism and collagen turnover.
Question 4: A free gingival graft is used primarily to:
- Eliminate periodontal pockets
- Increase the zone of attached (keratinized) gingiva (Correct answer)
- Regenerate lost bone
- Cover exposed root surfaces aesthetically
Correct answer: Increase the zone of attached (keratinized) gingiva
A free gingival graft harvested from the palate is the gold standard for augmenting the width of attached keratinized gingiva.
Question 5: Scaling and root planing (SRP) is most accurately described as:
- Removal of all cementum from root surfaces
- Removal of calculus and contaminated cementum with root smoothing (Correct answer)
- Surgical debridement of the periodontium
- Prophylactic polishing of root surfaces
Correct answer: Removal of calculus and contaminated cementum with root smoothing
SRP involves removal of supragingival and subgingival calculus, contaminated cementum, and plaque from root surfaces to create a biologically acceptable root surface.
Question 6: The mucogingival junction (MGJ) is described as the boundary between:
- Free and attached gingiva
- Attached gingiva and alveolar mucosa (Correct answer)
- Junctional epithelium and sulcular epithelium
- Gingiva and palatal mucosa
Correct answer: Attached gingiva and alveolar mucosa
The mucogingival junction separates the firmly attached, keratinized attached gingiva from the loose, non-keratinized alveolar mucosa.
INBDE Periodontics 2
The Ramfjord teeth used for periodontal epidemiological studies are: