fixed prosthodontics components

FIXED PROSTHODONTICS(COMPONENT)

Done by : Ahmed Ali Al-Asmari

Components :

1.Retainers.2.Pontics.3.Abutments.4.Connectors.

Retainers:

Part of the FPD will have metal castings, called retainers. They are made to fit onto what the dentist has cut away on the abutment teeth. Retainers also secure and support the FPD's artificial tooth or teeth.

Pontics:

A pontic is an artificial tooth that is suspended from the retainer casting. A pontic occupies the space formerly filled by the crown of a natural tooth.

Abutments:

The teeth that support and hold the retainer are called abutments. It is almost mandatory that an FPD be supported by an abutment at both ends. This requirement is waived in special situations.

Connectors:

A pontic is attached to a retainer by a connector. Connectors can be rigid or nonrigid. Nonrigid connectors take the form of male- and female-locking arrangements. Rigid connectors are classified as either cast or soldered.

Indications for Fixed Prosthodontics :

One or two adjacent teeth are missing in the same arch.

The supportive tissues are healthy.

Suitable abutment teeth are present.

Cont ...

The patient is in good health and wants to have the prosthesis placed.

The patient has the skills and motivation to maintain good oral hygiene.

Contraindications for Fixed Prosthodontics :

Necessary supportive tissues are diseased or missing.

Suitable abutment teeth are not present.

The patient is in poor health.

Cont ...

The patient is not motivated to have the prosthesis placed.

The patient has poor oral hygiene habits.

The patient cannot afford the treatment.

Reference:

Fundamental of Fixed Prosthodontics Third Edition, Herbert T. Shillingburg.