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Dental Prosthetics

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Questions and Answers

What is the purpose of an indirect retainer in a partial?

To directly support the abutment teeth

To counteract tipping forces from the opposite side of the fulcrum line (correct)

To join the major and minor connectors

To distribute stresses to different parts of the partial

What is the function of major connectors in a partial?

To support the artificial teeth

To act as the primary direct retainer

To join the parts of one side of the partial with those of the other side (correct)

To distribute stresses to different parts of the partial

When is a palatal bar or single palatal bar used as a major connector for the maxillary arch?

In tooth supported (class III) when the number of teeth is extensive

When the opposing occlusion is heavy

When the saddle is long supplying multiple teeth

When the saddle is short supplying one or two teeth (correct)

What is the contraindication for using an anterior-posterior palatal bar or double palatal bar as a major connector for the maxillary arch?

When prominent maxillary torus exist Signup and view all the answers

What is the definition of the fulcrum line in the context of partial dentures?

An imaginary line through the abutment teeth around which the partial tends to rotate Signup and view all the answers

What are connectors in a partial denture used for?

To join the various structural units together and distribute stresses Signup and view all the answers

What is the purpose of an indirect retainer in a partial denture?

To counteract tipping forces from the opposite side of the fulcrum line Signup and view all the answers

Where is the major connector 'palatal bar' used in the maxillary arch?

In tooth-supported (class III) when the number of teeth is not extensive Signup and view all the answers

What is the contraindication for using an anterior-posterior palatal bar as a major connector for the maxillary arch?

When anterior teeth are to be replaced Signup and view all the answers

What is the fulcrum line in the context of partial dentures?

An imaginary line around which the partial tends to rotate in function Signup and view all the answers