Dental Prosthodontics: Major Connector Quiz

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Questions and Answers

What is the primary function of a major connector?

To prevent stress distribution

To unite framework components and distribute stress (correct)

To absorb stress

To allow flexibility in the framework

Why must major connectors be rigid?

To absorb stress

To allow flexibility in the framework

To prevent stress distribution

To distribute stress (correct)

How many categories of major connectors are typically used on the maxillary arch?

Five

Three

Four (correct)

Two

What is the major connector called that is an AP palatal bars?

AP Palatal Barres Signup and view all the answers

What happens if one object in the framework is flexible while the other is rigid?

Stress is absorbed Signup and view all the answers

What is the function of a broad palatal strap?

To unite framework components and distribute stress Signup and view all the answers

What is the name of the horseshoe shape connector used for partial dentures in specific circumstances?

Lingual bar Signup and view all the answers

How many teeth stabilization points are needed to prevent rotation and instability when using the mentioned connector?

Four Signup and view all the answers

Which class of modifications is not ideal for the horseshoe shape connector?

Kennedy class 2 Signup and view all the answers

What is the most common major connector for the mandibular arch?

Lingual bar Signup and view all the answers

What dictates the adequacy of lingual fold depth assessment during tongue movement?

Tongue movement Signup and view all the answers

What does the lingual blanket contact to redirect forces and increase support?

Teeth Signup and view all the answers

What is scored into the cast in certain areas of the major connector on the maxillary arch to increase contact and seal?

Bead Signup and view all the answers

Which type of major connector is most common for the maxillary arch?

AP palatal bars Signup and view all the answers

What is added to the mandibular arch as a spacer during framework production to prevent the rest from touching the mucosa?

Wax relief Signup and view all the answers

What should be removed due to difficulty in designing removable restorations around them?

Peduncle Tori Signup and view all the answers

What can interfere with the inferior border of the partial, leading to removal?

Taurus Signup and view all the answers

What can have other issues such as undercuts and guide planes in lower major connectors?

Bead Signup and view all the answers

What type of finish line is created from a plastic pattern on the outside or tongue side of the partial denture?

External finish line Signup and view all the answers

Which type of teeth replacement is considered an esthetic alternative to a thick acrylic flange for missing anterior teeth?

Steels facings Signup and view all the answers

What is the purpose of lingual major connectors in cases with lingually tipped teeth?

Bring teeth closer to the tissue Signup and view all the answers

In denture fabrication, what is the butt joint between metal and acrylic at the major connector's junction with the denture base called?

Finish lines Signup and view all the answers

When is additional mechanical retention or reinforcement required for single tooth spaces in denture fabrication?

Posterior areas Signup and view all the answers

What type of tooth replacement is used in the posterior area where additional mechanical retention is required?

Tube tooth Signup and view all the answers

What is the function of a full palatal coverage connector for Kennedy Class one maxillary cases?

To provide additional support through a posterior palatal seal Signup and view all the answers

What is the main advantage of using a full palatal coverage connector over all-metal palates?

It is more adjustable Signup and view all the answers

When not using full palatal coverage, what is an alternative connector for dentures?

Horseshoe shape Signup and view all the answers

What is the purpose of lingual bars in relation to mandibular major connectors?

They are options for mandibular major connectors Signup and view all the answers

What are the key considerations when determining the width and thickness of connectors?

Rigidity of the connector and patient comfort Signup and view all the answers

In which cases are lingual bars used as major connectors?

Mandibular major connectors Signup and view all the answers

Study Notes

Full palatal coverage is a major connector used in specific applications for Kennedy class one patients on the maxillary arch. Prioritizing patient comfort and symmetry, the connector follows these guidelines:
Anterior Palatal Bars:
- Broad anterior palatal bar: Thinner and one-piece metal structure connecting the anterior teeth with speech issues due to thickness.
- Posterior palatal bar: Half-teardrop shaped with thickness increasing towards the posterior, parallel to the anterior palatal bar and perpendicular to the median suture.
- Both anterior and posterior bars maintain a minimum distance of 6mm from the gingival margins of the anterior teeth.
Full palatal coverage connector:
- Full acrylic coverage for Kennedy class one maxillary cases.
- Includes a metal base for posterior meshwork placement.
- Offers additional support through a posterior palatal seal.
- Can be used to cover Tori or Taurus when present.
- More adjustable than all-metal palates.
When not using full palatal coverage, a horseshoe shape is an alternative connector for dentures.
Lingual bars (simple and blanket) are options for mandibular major connectors.
Width and thickness of connectors depend on the number of missing teeth.
Rigidity of the connector and patient comfort are key considerations.

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Description

Test your knowledge of major connectors in dental prosthodontics with this quiz. Learn about the importance of stabilizing all four areas with teeth to prevent horizontal rotation.