Category Archives: Fixed Dentures

Resin Bonded Bridge – Maryland Bridge

Resin Bonded Bridge, also known as Maryland bridge is a dental prosthesis constructed of a cast metal framework which is luted to the enamel of abutment teeth by an adhesive composite resin.

Indications
In situations where the abutments are unrestored.

Advantages
It is a conservative restoration for missing teeth. Minimal tooth preparation is required. The retainer wings are attached to the abutments using resin cement.
Continue reading

Porcelain Fused to Metal Dental Crown

Porcelain Fused to Metal Dental Crown is a full cast crown having porcelain fused to either all or most of its surfaces. The metal alloys used have a high melting temperature so that porcelain can be bonded to the surface by being fired without the metal being melted. They have the properties which permit the bonding of porcelain without affecting its color. The alloys have also the properties allowing it to be cast, soldered and polished in the dental lab.

The tooth preparation for porcelain fused to metal crown allows more tooth tissue to be removed from the buccal surface to allow for the thickness of the metal as well as porcelain.
Continue reading

Fixed Movable Dental Bridge

Fixed-Movable Dental Bridge, also known as Fixed Movable Partial Denture, is a dental prosthesis where the artifical tooth or teeth is rigidly supported on one side, usually on the distal end by one or more abutment teeth. On the other side, one abutment will have an intracoronal or extracoronal attachment which allows a small degree of movement between the rigid component and the other abutment.

Each abutment can be prepared independently. Consideration is given to the placement of precision attachment.

Indications for Fixed Movable Dental Bridge
When the abutment teeth are not parallel in relation to each other and the reduction needed to make them parallel would be highly destructive to the abutment teeth. The construction of large units of fixed bridge means that the complex task of parallel preparations is increased. The use of precision attachment for the separation of large uits into several smaller but manageable sections.
Continue reading

Fixed-Fixed Dental Bridge

Fixed-Fixed Dental Bridge, also known as Fixed Fixed Partial Denture, is a dental prosthesis where the artificial tooth or teeth is supported rigidly on either side by one or more abutment teeth. It is indicated where missing teeth are bound by abutment teeth which arecapable of supporting the functional load of the missing teeth.

Fixed fixed bridge is a strong and retentive restoration for replacing missing teeth. It can be used for single or multiple missing with the abutment teeth splinted together. In splinted abutments, the design should allow access for oral hygiene.
Continue reading

Cantilever Dental Bridge

Cantilever Dental Bridge, also known as Cantilever Fixed Bridge and Cantilever Fixed Partial Denture, is a dental prosthesis where the artificial tooth is supported on one side only by one or more abutment teeth. Cantilever FPD is indicated where the abutment tooth can carry the occlusal load of the artificial tooth and where the occlusion is protected against potentially damaging rotational forces. This type of fixed prosthesis is also used in Dental Implants.

This type of bridge is generally the most conservative design in terms of tooth preparation. There is no expected problem of paralleling abutment teeth during tooth reduction.
Continue reading

Spring Cantilever Bridge

Spring Cantilever Bridge, also known as Spring Cantilever Fixed Partial Denture, is a prosthesis where the pontic supported by a connecting bar to the abutment tooth or teeth. This type of denture is placed where a patient has sound anterior teeth with one missing unit or where diastemas are present around an anterior missing unit.

The pontic in Spring cantilever FPD does not require support from adjacent teeth. Anterior teeth that are sound and might normally be prepared to support a pontic do not need to be involved. In spring cantilever bridge, posterior teeth are used for the for the support of the anterior pontic.
Continue reading