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INTRODUCTION& TERMINOLOGY

Part I: Generalconsiderations

Bridge (FPD)

Components


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It is a fixed restoration

which replaces one or more

missing teeth.

It is cemented to the

natural teeth, roots or fixed

with a screw to an implant.

It has 3 components:-Pontic

-Connectors

-Retainer


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Retainer

it is an fixed restoration, usually in the

form of crown, which is cemented to the

prepared abutment tooth, to providestabilization for the Fixed partial denture

(FPD).Retainer


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According to retention,

retainers are classified as:

- Extra coronal retainers

- Intra coronal retainers

- Intra radicular retainers


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Full coverage:

* Full metal crown

* Metal ceramic crown

* Jacket crown* Telescopic crown** Partial coverage:

* crown

* Reversed crown* crown

* Pin-ledge

* Modified type*Telescopic crown: it is referred to as a double crown. It

is consists of two parts: fixed primary (inner telescope

crown) and removable secondary (outer telescope crown

interlocking on top of the fixed.


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Inlay { M.O.D inlay* is the most commonly used}

Onlay

By post

By post and core

Pin-ledge

Combination of the above

*M.O.D inlay: it is a fixed restoration restores the damaged occlusal

and proximal (mesial and distal) surfaces of the tooth without

covering the cusps.


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Abutment tooth

it is a natural tooth or an implant used

to support and retain the FPD at one or

both terminals.

Abutment


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According to its position in relation to

edentulous area, it is classified as:

- Primary abutment: that provides the bridge

with prime means of support.

- Secondary abutment: that supports the primary

abutment in addition to that provides the

support to the bridge.

- Pier abutment: is an isolated or intermediate

abutment where the anterior and posterior

adjacent teeth to it are missing.

- Distal abutment:that is situated distal to the

edentulous area or the last abutment distally.


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According to its nature, it is classified as:

- natural tooth* full tooth (crown and root)

* remaining root (post and core)

- implant


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Pontic

is it an artificial coronal part of the

meaning tooth to be replaced.


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According to the material used in its construction:

- Metallic

- Combination between metal and resin

- Combination between metal and ceramic

- All ceramic

- All resin

According to its interface relationship between theresidual alveolar ridge and the gingiva:

- Lap- Modified Lap

- Hygienic

- Saddle type


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Connector (or joint)

it is that part of FPD that joins its

components with each other, retainer with

pontic, retainer with retainer or pontic topontic.


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they are classified into:

1. Rigid connector:

- cast connector

- soldered connector* pre- soldered

* post-soldered

2.Semi-rigid connector:

- interlocks custom made- precision attachment

3. Loop or a spring type


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What does Fixed partial denture mean?

Enumerate its components and give a

definition for each of them.

What are the types of abutment tooth?

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