Pontic Design For Metal Ceramic Bridge Should Quizzn

Provide for a rigid restoration.

Pontic design for metal ceramic bridge should quizzn.

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. Place the porcelain metal joint away from the soft tissues. Metal ceramic pontics requirements adequate bulk of metal uniform thickness of porcelain continuous strip of metal on lingual surface 56. Evidence to support or refute the effectiveness of ceramic materials for fixed prosthodontic treatment over metal ceramic.

Fixed movable bridges have a major retainer at one end of the pontic. 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. 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. All metal hygienic pontic fabrication 54.

Minimum thickness of connector for the posterior bridge should be 2 5 mm occluso gingivally and 2 5 mm bucco lingually. Retainers major or minor fixed fixed cantilever and spring cantilever bridges have only major retainer s. Provide for a rigid restoration. Dental bridges are used to hide the gap a missing tooth leaves behind.

All metal hygienic pontic fabrication 53. For resin bonded bridges the pontic should have light contact in intercuspal position icp. Learn about the types of dental bridges including traditional cantilever maryland and implant supported. C cover as much mucosa as possible.

Pontic or the artificial crown derives its name from a latin word pons which means bridge. Allow for complete coverage of the metal by the porcelain. This design of bridge has been superseded. B be constructed to have an occlusal surface wider than the width of the tooth it replaces.

The components of a bridge are retainers pontics and connectors. All metal hygienic pontic fabrication 55. It must be easily cleaned. Each part of the bridge should be designed individually but within the context of the overall design.

However wherever possible the maximum thickness of metal should be used commensurate with the maintenance of gingival health. Pontic design for a porcelain fused to metal bridge should 1. The pontic is firmly attached to a retainer at one end of. Selection criteria for pontic and pontic designs.

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. All metal hygienic pontic fabrication 52. Place the porcelain metal joint away from the soft tissues. 2 and 4 4 only 1 and 3.

Control thermal conductivity 4 only all of the above 1 2 3 1 and 3 2 and 4. 1 2 3 all of the above. Allow for complete coverage of the metal by the porcelain.