Innovative and modern techniques in dental material offer new ways to create a more pleasant and natural looking smiles. Decade long research by researchers has developed aesthetic materials, like ceramic and plastic compounds that can be used in place of natural teeth. Consequently, dentists and patients all over have many choices when it comes to selecting materials to repair missing, worn, damaged or decayed teeth.
Composite resins are naturally teeth coloured materials which are used as both, fillings as well as to repair teeth defects. It is hard to distinguish them from natural teeth.
Composites are preferably used on the front teeth where a natural appearance is necessary.
Although they can be used on the back teeth as well, depending on their location and the extent of damage.
Glass and Resin Ionomers:
Glass ionomers are teeth-coloured made of a mixture of acrylic acids and fine glass powders which are used to fill cavities, mostly those on the root surfaces of teeth. An advantage of glass ionomers is that it releases a small amount of fluoride which helps patients who are at high risk for decay. Primarily glass ionomers are used as small fillings in areas which cannot withstand heavy chewing pressure. They have a low resistance to fracture, hence glass ionomers are predominantly used in small non load-bearing fillings (those between the teeth) or on the roots of teeth. Resin ionomers also are made from glass filler with acrylic acids and acrylic resin. Similar to glass ionomers, they also are used for non load-bearing fillings (between the teeth) and have low to moderate resistance to fracture. Ionomers experience high wear when placed on chewing surfaces. Both glass and resin ionomers appear like natural tooth but lack the natural translucency of enamel. Both these types are well tolerated by patients with only rare occurrences of allergic response.
Porcelain (ceramic) dental materials:
All porcelain (ceramic) dental materials include porcelain, ceramic or glasslike fillings and crowns. They are generally used as inlays, onlays, crowns, and aesthetic veneers. A veneer is a very thin shell of porcelain which is used to replace or cover part of the enamel of the tooth. The porcelain (ceramic) restorations are particularly desirable because their colour and translucency mimic natural tooth enamel. All porcelain restorations have a minimum requirement of two visits or more. The strength of these restorations depends on the thickness of porcelain and the ability to bond to the underlying tooth. They are highly resistant to wear and tear but the porcelain can quickly wear the opposing teeth if the porcelain surface becomes rough