Composite Resin Fillings
Made of acrylic resin mixed with powdered quartz, glass, or other ceramic particles, composite fillings can be used for both direct and indirect fillings. These are the most popular tooth-colored restorations.
- Can be applied to the tooth immediately after preparation
- Can be closely matched in color to tooth enamel
- Harden quickly under a special curing light
- Less expensive than porcelain fillings
- Preserve more tooth structure than metal amalgams
- Durable, but may not be as durable as porcelain or amalgam fillings for chewing surfaces
- Insurance coverage can vary depending on the location of the filling
Porcelain/Ceramic Fillings
These indirect fillings are made of advanced ceramic materials, fabricated using an impression of the prepared tooth for a precise fit.
- Most realistic looking because they are translucent as well as matched for color
- Typically last longer than composite fillings, and less likely to chip or crack
- More stain resistant than composite fillings
- Usually require at least two appointments
- More expensive than composite fillings
Glass Ionomer Fillings
Glass ionomer is a flexible paste made with silicate glass powder. Commonly used as a sealant or a cement for orthodontic brackets, glass ionomers can also be used in fillings.
- The material bonds directly to the tooth itself
- The glass powder can be formulated with fluoride, which is released over time for added anti-cavity protection
- Resin-modified ionomers are available that harden more quickly
- Don’t always blend as well with natural tooth color
- Less durable than other filling materials, so these fillings are better used in temporary fillings, to fill cavities along the gum line or other non-biting surfaces, or to fill baby teeth.
The size of a cavity, its location, cost considerations—these factors will all affect your choice of filling. Talk to your dentist to discover which tooth-colored option is best to protect the health and enhance the appearance of your smile.