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Questions and Answers
What is the primary purpose of a retainer in a dental bridge?
What is the primary purpose of a retainer in a dental bridge?
A cantilever bridge has its pontic supported at both ends.
A cantilever bridge has its pontic supported at both ends.
False
What is the term for the artificial restoration that links the pontic to the abutment?
What is the term for the artificial restoration that links the pontic to the abutment?
retainer
A bridge that has components extending on both sides of the midline is called a ______ bridge.
A bridge that has components extending on both sides of the midline is called a ______ bridge.
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Match the following types of bridges with their descriptions:
Match the following types of bridges with their descriptions:
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Which bridge type allows for individual movement of the abutment?
Which bridge type allows for individual movement of the abutment?
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The pier in a bridge refers to an isolated abutment tooth.
The pier in a bridge refers to an isolated abutment tooth.
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What component of a dental bridge connects the pontic(s) with the retainer(s)?
What component of a dental bridge connects the pontic(s) with the retainer(s)?
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Study Notes
Bridge Components
- Masticating Surface: The chewing or biting part of a bridge, made from metal or non-metal materials.
- Abutment Tooth: A natural tooth that supports and holds the bridge, prepared to receive a retainer.
- Pier: An isolated abutment tooth, where the teeth in front and behind it are missing.
- Pontic: The replacement tooth part of the bridge that restores the missing tooth's shape and function.
- Retainer: An artificial restoration that rebuilds the prepared abutment tooth and connects the pontic.
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Connector: The bridge part that connects the pontic(s) to the retainer(s). It can be:
- Rigid: A solid connection, usually with a cast or soldered joint.
- Non-rigid: Allows for some movement, like an occlusal or lingual rest.
Bridge Types
- Fixed-Fixed: Both ends of the bridge, including the pontic and retainer, are connected with rigid connectors and cemented to the abutment teeth.
- Fixed-Supported: The pontic connects to one end of the retainer with a rigid connector and the other with a non-rigid connector, allowing for movement of the abutment.
- Fixed-Free (Cantilever): The pontic is soldered and supported by one or two retainers on one end, with the other end unsupported.
- Spring Cantilever: A cantilever bridge where the pontic is on the end of a resilient curved arm. It rests on the palate, supported by an abutment away from the missing teeth (palatal spring).
- Simple Bridge: One bridge type, could be any of the previous variations: fixed-fixed, fixed-supported, fixed-free, cantilever, or spring cantilever, as well as removable.
- Compound Bridge: A combination of two or more simple bridges.
- Complex Bridge: A bridge that extends beyond the canine on one side.
- Unilateral Bridge: A bridge spanning two or three anterior teeth that does not cross the midline.
- Bilateral Bridge: A bridge with components that extend on both sides of the midline.
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Description
This quiz explores the essential components of dental bridges, including the masticating surface, abutment tooth, and pontic. It also covers various types of bridges such as fixed-fixed and fixed-supported. Test your understanding of how these components work together to restore dental function.
