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Esthetic Implant Gold Dental Center
10745 Riverside Dr. Suite B Toluca Lake, CA 91602
Beautiful and Bright New Smile!
Direct Composite Restoration
Direct Composite resins
Dental composite resins are types of synthetic resins which are used as restorative material known as adhesives or bonding. Composite resins are materials that have similar characteristics to a tooth’s natural enamel, and their color can be adjusted to match the particular color of your teeth.
Bonding is a non-invasive procedure that can provide astounding improvements in the appearance of your teeth.
Initially, composite restorations were very prone to leakage and breakage due to high shrinkage, low value of fracture toughness and weak compressive strength. In the late 1990s and 2013, the physical and mechanical properties of the composites were greatly improved. Today, the composite resins have low polymerization shrinkage and a compatible coefficient of thermal expansion, which allows them to be placed in bulk while maintaining good adaptation to cavity walls.
The placement of composite resins requires meticulous attention to procedure or it may fail prematurely. The tooth must be kept perfectly dry during placement or the resin will likely fail to adhere to the tooth. Composites are placed while still in a soft, dough-like state, but when exposed to light of a certain blue wavelength (typically 570 nm, with traces of UV), they polymerize and harden into the solid filling.
A properly placed composite is very predictable, comfortable, esthetic pleasing, strong and durable, and could last 10 years or more.
Direct vs indirect composite resins
It might be expected that the costlier indirect technique leads to a higher clinical performance, however this is not seen in all studies. A study conducted over the course of 11 years reports similar failure rates of direct composite fillings and indirect composite inlays. Another study concludes that although there is a lower failure rate of composite inlays it would be insignificant and anyway too small to justify the additional effort of the indirect technique. Also in the case of ceramic inlays a significantly higher survival rate compared to composite direct fillings is well supported by current review literature as of 2013.