TMJ Internal Derangement Quiz
11 Questions
6 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is a characteristic of TMJ internal derangement?

  • No change in range of motion and deviation toward the affected side upon opening
  • Increased range of motion and deviation toward the unaffected side upon opening
  • No change in range of motion and deviation toward the unaffected side upon opening
  • Reduced range of motion and deviation toward the affected side upon opening (correct)

What happens in internal derangements of the temporomandibular joint?

  • The articular disc becomes thinner on the condylar head
  • The articular disc becomes displaced from its original position on the condylar head (correct)
  • The articular disc becomes enlarged on the condylar head
  • The articular disc becomes fused to the condylar head

What is the main condition in internal derangements of the temporomandibular joint?

  • Fusion of the articular disc
  • Thinning of the articular disc
  • Enlargement of the articular disc
  • Displacement of the articular disc (correct)

What shape should the ideal solder joint be in a BL cross-section?

<p>Circular or elliptical (D)</p> Signup and view all the answers

Where are connectors for fixed dental prostheses placed more lingually for esthetic reasons?

<p>Anterior teeth (A)</p> Signup and view all the answers

Why should the ideal solder joint not be too large?

<p>To prevent distortion or fracture during function (C)</p> Signup and view all the answers

Which type of dental ceramics is known for its high glass content and excellent optical properties?

<p>Silica (C)</p> Signup and view all the answers

What process is used to produce glass-infiltrated alumina cores rapidly?

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

Which type of dental ceramics is often used for veneering stronger substructures due to its poor mechanical strength?

<p>Feldspathic porcelain (A)</p> Signup and view all the answers

Which material has significantly higher porcelain bond strength over CAD/CAM produced zirconia and alumina cores without glass?

<p>Glass-infiltrated alumina (C)</p> Signup and view all the answers

What is the primary reason for using silica-based ceramics in dental restorations?

<p>Excellent optical properties (C)</p> Signup and view all the answers

Flashcards

TMJ Internal Derangement

A condition where the articular disc in the temporomandibular joint (TMJ) is displaced from its normal position, leading to reduced jaw movement and pain.

What happens in TMJ internal derangements?

The articular disc, a crucial part of the TMJ, is shifted out of its usual position on the condylar head, impacting joint function.

What is the main factor in TMJ internal derangements?

The main cause for TMJ internal derangement is the displacement of the articular disc.

Ideal solder joint shape in BL cross-section

Ideally, the solder joint in a BL cross-section should resemble a circle or an oval shape.

Signup and view all the flashcards

Connectors for fixed prostheses in anterior teeth

For better aesthetics, connectors for fixed dental prostheses in the front teeth are placed more towards the tongue side.

Signup and view all the flashcards

Why shouldn't solder joints be excessively large?

A large solder joint can lead to twisting or breaking during biting and chewing, so it's best to keep it small.

Signup and view all the flashcards

What is the characteristic of silica-based ceramics?

Silica-based ceramics, known for their high glass content, exhibit excellent light transmission and aesthetic properties.

Signup and view all the flashcards

Method for producing glass-infiltrated alumina cores

Electrophoretic deposition is a method used to rapidly create glass-infiltrated alumina cores for dental restorations.

Signup and view all the flashcards

What is feldspathic porcelain's main use?

Feldspathic porcelain, due to its relative weakness, is often used as a covering material for stronger dental foundations.

Signup and view all the flashcards

Which material has better porcelain bonding?

Glass-infiltrated alumina, compared to zirconia and alumina without glass, demonstrates much stronger bonding with porcelain.

Signup and view all the flashcards

Primary reason for using silica ceramics in dental restorations

The superior light-conducting properties of silica-based ceramics make them a preferred choice for dental restorations.

Signup and view all the flashcards

More Like This

TMJ Examination and Smile Aesthetics Quiz
18 questions
TMJ Positioning Flashcards
11 questions
Head, Neck, TMJ Anatomy & Conditions
40 questions
Use Quizgecko on...
Browser
Browser