Dental Histopathology Quiz
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Questions and Answers

What is the significance of strands or islands of epithelial rests of Malassez in histopathology?

  • They are a type of chronic inflammatory cell
  • They are responsible for root resorption
  • They are a remnant of Hertwig's root sheath (correct)
  • They are a source of stem cells for tissue regeneration

What is the primary mechanism of spread of an oral infection resulting in osteomyelitis?

  • Lymphatic spread through regional lymph nodes
  • Direct extension through the periodontal ligament
  • Spread along the path of least resistance (correct)
  • Hematogenous spread through the bloodstream

Which of the following is a characteristic feature of cellulitis?

  • A well-defined abscess cavity
  • A diffuse edematous spread of an acute inflammatory process (correct)
  • The formation of a fibrous connective tissue capsule
  • The presence of granulation tissue

What is the primary difference between Ludwig's angina and cavernous sinus thrombosis?

<p>The location of the infection (C)</p> Signup and view all the answers

What is the function of foam cells in the histopathology of an abscess?

<p>To accumulate and phagocytose cholesterol (D)</p> Signup and view all the answers

What is the significance of cholesterol clefts in the histopathology of an abscess?

<p>They are spaces occupied by cholesterol (B)</p> Signup and view all the answers

What is the primary reason why an abscess may not be able to establish drainage through the surface of the skin or into the oral cavity?

<p>The abscess is located in a fascial space (D)</p> Signup and view all the answers

What is the characteristic clinical feature of Ludwig's angina?

<p>Firm, painful diffuse swelling with inflamed and red overlying skin (A)</p> Signup and view all the answers

What is the primary reason for the infection to spread to the submandibular space?

<p>The apices of the teeth are situated below the mylohyoid ridge (B)</p> Signup and view all the answers

What is the characteristic feature of the tongue in Ludwig's Angina?

<p>Elevation, enlargement, and protrusion of the tongue (D)</p> Signup and view all the answers

What is the primary complication of orofacial infections that can lead to cavernous sinus thrombosis?

<p>Infection of the 'danger triangle of the face' (C)</p> Signup and view all the answers

What is the characteristic feature of the eyeball in cavernous sinus thrombosis?

<p>Protrusion and fixation of the eyeball (D)</p> Signup and view all the answers

What is the primary sign of cavernous sinus thrombosis?

<p>Edematous periorbital enlargement (A)</p> Signup and view all the answers

What is the condition that may show possible suffocation and death?

<p>Ludwig's Angina (B)</p> Signup and view all the answers

What is the area that is involved in cavernous sinus thrombosis?

<p>The area from the corners of the mouth to the bridge of the nose (B)</p> Signup and view all the answers

What is the characteristic feature of the neck in Ludwig's Angina?

<p>Firm, painful swelling in the upper part of the neck (A)</p> Signup and view all the answers

What is the primary cause of an acute periapical abscess?

<p>Pulpal irritant to the periapical tissue (D)</p> Signup and view all the answers

Which histopathological feature is characteristic of an acute periapical abscess?

<p>Leucocytic (polymorphonuclear leukocytes) infiltration (C)</p> Signup and view all the answers

Which stage of periapical disease involves severe symptomatic inflammatory response of periapical tissue to a non-vital tooth?

<p>Acute periapical abscess (C)</p> Signup and view all the answers

What is a common clinical feature of an acute periapical abscess?

<p>Severe throbbing pain increasing with biting or at night (C)</p> Signup and view all the answers

What does the release of proteolytic enzymes in an acute periapical abscess lead to?

<p>Pus formation and vasodilatation (C)</p> Signup and view all the answers

Which of the following is not classified under chronic periapical diseases?

<p>Acute periapical abscess (A)</p> Signup and view all the answers

What histopathological process leads to the necrosis of cells in an acute periapical abscess?

<p>Hypoxia (D)</p> Signup and view all the answers

Which of the following is a feature of the pathogenesis of an acute periapical abscess?

<p>Stimulated osteoclastic activity and bone resorption (B)</p> Signup and view all the answers

What is a potential consequence if Cavernous Sinus Thrombosis is not properly treated?

<p>Brain abscess or meningitis (D)</p> Signup and view all the answers

Which tooth infection is likely to cause Ludwig's Angina?

<p>Lower 7, 8 (A)</p> Signup and view all the answers

What typically triggers pulpoperiapical pathosis?

<p>A pulpal irritant (D)</p> Signup and view all the answers

Which type of oral infections typically spread along the path of least resistance?

<p>Oral infections (A)</p> Signup and view all the answers

Which of the following best describes Ludwig’s Angina?

<p>A severe cellulitis that could lead to suffocation and death (B)</p> Signup and view all the answers

What is Ludwig's Angina often a result of?

<p>Direct spread of infection from lower 7, 8 teeth (B)</p> Signup and view all the answers

Which region is affected by infections that can lead to Cavernous Sinus Thrombosis?

<p>Danger triangle of the face (C)</p> Signup and view all the answers

What is a common symptom indicating a tooth is affected by pulpoperiapical pathosis?

<p>Response to percussion (B)</p> Signup and view all the answers

Which of the following best describes the pain associated with an acute periapical abscess?

<p>Severe throbbing pain, especially upon percussion (A)</p> Signup and view all the answers

How is the pain different between acute periapical abscess and chronic periapical abscess?

<p>Acute abscess has severe throbbing pain while chronic abscess has slight discomfort (B)</p> Signup and view all the answers

Which histological feature differentiates chronic periapical abscess from acute periapical abscess?

<p>Chronic inflammatory cell infiltrate including plasma cells and lymphocytes (B)</p> Signup and view all the answers

Which condition is characterized by an acute exacerbation of a chronic lesion with large radiolucent periapical area?

<p>Recrudescent abscess (Phoenix abscess) (D)</p> Signup and view all the answers

What is the primary characteristic of a periapical granuloma?

<p>Localized mass of chronic inflammatory granulation tissue (D)</p> Signup and view all the answers

Which describes the radiographic finding typical of a periapical granuloma?

<p>Well-defined radiolucent area related to the root apex (B)</p> Signup and view all the answers

Which statement best explains the pathogenesis of periapical granuloma?

<p>Irritant from the pulp induces vasodilatation and bone resorption followed by replacement with granulation tissue (D)</p> Signup and view all the answers

Which of the following is a defining feature of an acute periapical abscess and not a periapical granuloma?

<p>Severe pain upon percussion and absence of drainage (D)</p> Signup and view all the answers

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