Home/Quiz/Board Exam MCQs on Acute and Chronic infections of the Jaw Board Exam MCQs on Acute and Chronic infections of the Jaw Welcome to your Board Exam MCQs on Acute and Chronic infections of the Jaw 1. A patient with chronic mandibular pain has an irregular, patchy increase in radiodensity involving the jaw, producing a characteristic "cotton-wool" appearance. Which condition is most strongly associated with this radiographic pattern? Acute suppurative osteomyelitis Chronic suppurative osteomyelitis Diffuse sclerosing osteomyelitis Proliferative periostitis Periapical cemento-osseous dysplasia None Hint 2. A patient with untreated syphilis develops severe, ulceronecrotic mucocutaneous lesions with a systemic toxic appearance during the secondary stage of infection. This aggressive clinical variant is known as lues maligna. Lues maligna is a form of: Tertiary syphilis Secondary syphilis Congenital syphilis Primary syphilis Latent syphilis None Hint 3. A child with congenital syphilis is evaluated for characteristic dental abnormalities. The permanent first molars have abnormal, globular crowns with multiple poorly developed cusps and an irregular occlusal surface. These teeth are classically referred to as: Hutchinson incisors Fournier molars Mulberry molars Turner teeth Talon-cusped molars None Hint 4. A patient with a positive tuberculin skin test has no clinical or radiographic evidence of active tuberculosis. The delayed skin-test response to purified protein derivative is mediated primarily by which type of hypersensitivity reaction? Type I hypersensitivity Type II hypersensitivity Type III hypersensitivity Type IV hypersensitivity Type I and Type II hypersensitivity None Hint 5. A patient has a positive tuberculin test but no evidence of active tuberculosis. Which of the following is an accepted use of isoniazid monotherapy for approximately 6 months? Treatment of drug-susceptible active pulmonary tuberculosis as monotherapy Treatment of latent tuberculosis infection Treatment of tuberculous meningitis as monotherapy Treatment of multidrug-resistant tuberculosis as monotherapy Treatment of active tuberculosis in place of combination therapy None Hint 6. A periapical granuloma is examined histologically and shows a chronic inflammatory infiltrate rich in plasma cells. Some plasma cells contain rounded, strongly eosinophilic cytoplasmic inclusions formed from accumulated immunoglobulin. These inclusions are called: Rushton bodies Pyronine bodies Russell bodies Hyaline bodies Cementicles None Hint 7. A patient develops odontogenic infection from a posterior tooth. Based on the usual relationship between tooth roots and the cortical plates, which group of teeth is most likely to produce infection that drains through the lingual or palatal cortical plate rather than the buccal/facial plate? Maxillary lateral incisors, palatal roots of maxillary molars, and mandibular second and third molars Maxillary central incisors, mandibular lateral incisors, and maxillary first molars Mandibular central incisors, mandibular canines, and maxillary premolars Maxillary central incisors, maxillary canines, and mandibular first premolars Maxillary premolars, mandibular first molars, and mandibular lateral incisors None Hint 8. A patient presents with chronic osteitis of the anterior chest wall, severe acne, and recurrent sterile pustular skin lesions. Which diagnosis best explains the combination of synovitis, acne, pustulosis, hyperostosis, and osteitis? SAPHO syndrome Behçet disease Reiter syndrome Sweet syndrome Sjögren syndrome None Hint 9. A chronic suppurative infection of the cervicofacial region produces firm swelling and draining sinus tracts containing yellow granular material. Which pair of infectious conditions is classically associated with sulfur granules? Actinomycosis and botryomycosis Actinomycosis and aspergillosis Actinomycosis and mucormycosis Actinomycosis and histoplasmosis Aspergillosis and histoplasmosis None Hint 10. A patient is suspected of having extrapulmonary tuberculosis involving the central nervous system or spine. Which imaging modality provides the best evaluation of the extent of soft-tissue and marrow involvement in this setting? Ultrasonography Computed tomography Chest radiography Magnetic resonance imaging Panoramic radiography None Hint 11. A patient with late congenital syphilis is evaluated for a characteristic skeletal manifestation. Which finding is known as Higoumenakis sign? Unilateral enlargement of the sternal end of the clavicle Notching of the permanent maxillary central incisors Mulberry-like deformity of the permanent first molars Saber-shaped deformity of the tibia Painless enlargement of the mandibular condyle None Hint 12. A chronic cutaneous lesion caused by Mycobacterium tuberculosis is diagnosed in a previously sensitized patient. Which of the following is the appropriate designation for this form of tuberculosis? Paraneoplastic pemphigus Familial benign pemphigus Pemphigus foliaceus Lupus vulgaris Pemphigus vulgaris None Hint 13. A Mantoux tuberculin skin test is performed in an adult with no known risk factors for tuberculosis. Which induration measurement is considered positive? 5 mm or greater 8 mm or greater 10 mm or greater 12 mm or greater 15 mm or greater None Hint 14. During conventional Ziehl-Neelsen examination of a smear for suspected tuberculosis, which finding represents the minimum number of acid-fast bacilli traditionally used as a positive result in this examination convention? Three acid-fast bacilli Eight acid-fast bacilli Ten acid-fast bacilli Fifteen acid-fast bacilli Twenty acid-fast bacilli None Hint 15. An acute osteomyelitic infection develops in the maxilla of a newborn or very young infant. Which traditional term is used for this condition? Maxillitis neonatorum Osteomyelitis neonatorum Neonatal maxillitis Natal osteomyelitis Infantile mandibular osteomyelitis None Hint 16. Periodontal bone loss involving the trifurcation of a maxillary permanent first molar is being evaluated. From which surface does furcation involvement classically occur most commonly? Palatal surface Buccal surface Mesial surface Distal surface Occlusal surface None Hint 17. A periodontal radiograph of a maxillary molar shows a curved radiolucency extending toward the trifurcation, producing an inverted-J appearance. Which condition most likely accounts for this finding? Superimposition of the nasolabial fold over a maxillary canine Superimposition of the nasal ala over the maxillary lateral incisor and canine Mesial or distal furcation involvement of a maxillary molar Arch-shaped bone destruction in aggressive periodontitis Periapical cemento-osseous dysplasia None Hint 18. A patient with chronic osteomyelitis of the jaw requires imaging to evaluate periosteal new bone formation and sequestra. Which imaging modality is most appropriate? Magnetic resonance imaging Computed tomography Technetium bone scan Gallium citrate scan Ultrasonography None Hint 19. A chronic periapical inflammatory lesion adjacent to the floor of the maxillary sinus produces a thin layer of reactive bone along the sinus. What is this periosteal reaction termed? Inverted dome shadow Halo shadow Moon shadow Dome shadow Crescent shadow None Hint 20. A young patient develops chronic low-grade mandibular osteomyelitis with prominent periosteal new bone formation. Which characteristic of the young skeleton helps explain the vigorous periosteal response? The periosteum is relatively loosely attached to the bone surface Young adults have persistently higher serum calcium levels Young patients are inherently more prone to all trauma and infections The medullary blood supply is absent in young patients The periosteum has minimal osteogenic activity during growth None Hint 21. A periapical granuloma is examined histologically and shows a chronic inflammatory infiltrate rich in plasma cells. Some plasma cells contain rounded, strongly eosinophilic cytoplasmic inclusions formed from accumulated immunoglobulin. These inclusions are called: Rushton bodies Pyronine bodies Russell bodies Hyaline bodies Cementicles None Hint 1 out of 11 Time's up
