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Biomedical subjects

S Perelmuter

Publications and source records attributed to S Perelmuter.

9 recordsLinked to original sources
PubMed1990

[Ceramic veneers].

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Dental Porcelain↗
PubMed1990

[Bonding of ceramic onlays. The effect on contour form].

Ceramic onlays have come into much wider use and experience has led to gradual modification of preparation contours. The aim was to improve two complementary aspects, aesthetics and mechanical strength. The use of ceramics to rebuild cusps enhances the structures' mimetic effect and mechanical qualities. If an isthmus exists connecting the occlusal and proximal cavities, it must be enlarged; if not, none must be created. The use of bonded ceramic overlays offers an original therapeutic result. They are indicated in order to even out occlusal patterns.

Dental Bonding↗
PubMed1990

[Implant-ceramometal prosthesis relation: esthetic and technical improvements].

Two major concerns characterize the difficulties encountered with prostheses on implants. 1--The difference in orientation between the implant, imposed by anatomical requirements, and the restoration anatomy. It should be kept in mind that a sufficient occlusal space is required to house the restoration. The regularization of the occlusal curve of the opposite arch, in the example given, was obtained by bonding ceramic overlays. 2--The visibility of the abutment at the gingival level. In this clinical case, after removing the old prosthesis, it is observed that the position of the screws is unsuitable, as one of them emerges into the embrasure. A solution to these problems may be found in building an intermediate screwed core. The technical protocol requires the use of long screwed transfers, a specific impression method and plastic preforms. The intermediate core is formed by the combination of two hollow dowel cores into which a conventional metal ceramic bridge is incorporated. Aesthetically speaking, the prosthetic construction is characterized by the absence of metal visibility. The use of the pterygoid bone radically transforms prosthetic indications. It is advisable that the extremity of the implant remains accessible. Linking to the restoration can be carried out with a screwed telescopic substructure. It is not necessary, at the level of the pterygoid bone situated outside the limits of the arch, to carry out any dental morphology. A smooth, polished construction situated below the plane of occlusion is sufficient.

Dental Abutments↗