Lec 2 Types of Esthetic Restorative Materials Flashcards
An indirect restoration, fabricated in dental laboratories.
Fused (baked) feldspathic porcelain inlay (Ceramic inlays and onlays)
The first translucent filling material, introduced in 1871.
Silicate cement
Silicate cement is made up of? (2)
Alumina silica glass & phosphoric acid
Very soluble
Poor mechanical properties
Silicate cement
Failed silicate cement restorations display loss of?
contour
Disappointing because of inherent weaknesses:
- poor activator systems
- high polymerization shrinkage
- high coefficient of thermal expansion
- lack of abrasion resistance
Acrylic resin
Introduced commercially in 1962 by Bowen of NBS.
Composite
The most popular tooth-colored material.
Composite
The original GI restorative materials were?
powder-liquid systems
Releases fluoride, has anticariogenic effect, and possess favorable coefficient of thermal expansion.
Conventional glass ionomer
Glass ionomers use _______, which renders the restoration less soluble.
polyacrylic acid
Developed in an effort to improve the physical properties and esthetic qualities of conventional glass ionomer.
Resin-Modified Glass Ionomer
Glass ionomers to which resin is added.
Resin-Modified Glass Ionomer
The ______ component of RMGI affords the potential for lightcuring, autocuring, or both.
resin
Physical properties are generally inferior to those of composites and their indications for clinical use are limited.
Compomers
