Pontic Design For Metal Ceramic Bridge Should Quizzn

According to some experiments it seems as if a somewhat higher difference up to 0 75 10 6 c can be used without the risk of cracks or fractures in the ceramic.

Pontic design for metal ceramic bridge should quizzn.

Retainers major or minor fixed fixed cantilever and spring cantilever bridges have only major retainer s. Allow for complete coverage of the metal by the porcelain. The pontic is firmly attached to a retainer at one end of. Pontic serves to restore the mastication speech to maintain tooth relationships both interarch and intra arch and also to satisfy patients esthetic and psychological needs by eliminating the space in dentition.

This design of bridge has been superseded. Place the porcelain metal joint away from the soft tissues. All metal hygienic pontic fabrication 55. Metal ceramic systems that have a difference in the coefficients of thermal expansion metal minus ceramic of 0 5 10 6 c or less are acceptable.

For resin bonded bridges the pontic should have light contact in intercuspal position icp. Pontic design for a metal ceramic bridge should 1. Evidence to support or refute the effectiveness of ceramic materials for fixed prosthodontic treatment over metal ceramic. Provide for a rigid restoration.

B be constructed to have an occlusal surface wider than the width of the tooth it replaces. It must be easily cleaned. 2 and 4 4 only 1 and 3. Minimum thickness of connector for the posterior bridge should be 2 5 mm occluso gingivally and 2 5 mm bucco lingually.

Allow for complete coverage of the metal by the porcelain. Control thermal conductivity 4 only all of the above 1 2 3 1 and 3 2 and 4. Dental bridges are used to hide the gap a missing tooth leaves behind. All metal hygienic pontic fabrication 52.

The components of a bridge are retainers pontics and connectors. A metal ceramic posterior fixed partial denture pontic should a be constructed to have an occlusal surface one quarter the width of the tooth it replaces. 1 2 3 all of the above. D provide adequate embrasure spaces.

Pontic design for a porcelain fused to metal bridge should 1. Place the porcelain metal joint away from the soft tissues. Pontic or the artificial crown derives its name from a latin word pons which means bridge. Metal ceramic pontics requirements adequate bulk of metal uniform thickness of porcelain continuous strip of metal on lingual surface 56.

C cover as much mucosa as possible. Selection criteria for pontic and pontic designs. Fixed movable bridges have a major retainer at one end of the pontic. All metal hygienic pontic fabrication 53.

Learn about the types of dental bridges including traditional cantilever maryland and implant supported. However wherever possible the maximum thickness of metal should be used commensurate with the maintenance of gingival health. Provide for a rigid restoration.