What are the disadvantages of composite tooth fillings?
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American Dental Association answered:There are several disadvantages of composite tooth fillings, which are a mixture of glass or quartz filler in resin and are tooth-colored:
- Composite fillings may cost more than amalgam fillings (a stable alloy tooth filling made of about 43 percent to 54 percent mercury with other metals)
- They may take longer to place in the tooth.
- Composite fillings may discolor over time.
There are several disadvantages of composite tooth fillings, which are a mixture of glass or quartz filler in resin and are tooth-colored: Composite fillings may cost more than amalgam fillings (a stable alloy tooth filling made of about 43... More -
Dr. De Vizio of Colgate answered:Composite fillings are a mixture of plastic and fine glass particles. The disadvantages of composite tooth fillings include a higher cost than amalgam ("silver") fillings. Getting a composite filling may take a little longer than getting other types because the area has to be kept completely free of saliva while the filling is being placed. Composite fillings also may not withstand heavy pressure from chewing the way amalgam fillings can, and they may not last as long. In rare cases, the composite may shrink after it is placed, which can lead to more cavities if there is a gap between the filling and the tooth.Composite fillings are a mixture of plastic and fine glass particles. The disadvantages of composite tooth fillings include a higher cost than amalgam ("silver") fillings. Getting a composite filling may take a little longer than getting... More -
Dr. Jonathan B. Levine answered:There are several disadvantages of composite tooth fillings:
- They don’t last as long as the other options (five to ten years, usually), and can’t withstand as much chewing force as the other options. However, as technology continues to improve, composites are getting better and stronger.
- Depending on their location, the composite materials can chip off.
- They can cost up to twice as much as silver amalgams. (Most dental insurance covers the cost of composites up to the price of the silver filling, then the patient must pay the difference.)
There are several disadvantages of composite tooth fillings: They don’t last as long as the other options (five to ten years, usually), and can’t withstand as much chewing force as the other options. However, as technology... More -
Dr. Saul Miller answered:Placing a composite restoration requires numerous steps, each of which must be completed properly for the restoration to function properly, last as long as possible and for the tooth to feel comfortable. These steps involve not only removal of the decay, but also preparation of the tooth so that it is sealed and ready for the composite material to be bonded to the tooth. The bonding agent must be placed with care, and the composite must be placed in such a way to minimize shrinkage.
In addition, it is often a challenge to shape the composite posterior restoration so that it contacts the adjacent tooth in as natural a way as possible. This is important to avoid food collecting between the teeth. The bite of the composite must also be very carefully adjusted to avoid post-op discomfort.
When access is limited in the mouth (small mouth, inability to keep mouth open, physical limitations) and/or need to complete a procedure as quickly as possible are factors, composites may not be the best choice of materials. Also, if a restoration has to be placed below the gum and if dryness of the area is not possible, other materials should be considered.
Placing good composite restorations, especially in the back of the mouth, is challenging; the procedure is usually longer than what you may have previously experienced, and the cost is usually higher.
Placing a composite restoration requires numerous steps, each of which must be completed properly for the restoration to function properly, last as long as possible and for the tooth to feel comfortable. These steps involve not only removal of the... More -
Dr. William Litaker answered:While composite fillings work well, there are some disadvantages. First, the procedure takes longer to do than a traditional silver filling because there are more steps. Second, the fee is generally higher than for a silver filling. Third, teeth with composite restorations are not as resistant to decay as silver fillings. Fourth, composite fillings will stain and discolor over time. Finally, the composite material does not work well in areas of the mouth where it is difficult to keep the tooth dry such as behind the posterior teeth.
While composite fillings work well, there are some disadvantages. First, the procedure takes longer to do than a traditional silver filling because there are more steps. Second, the fee is generally higher than for a silver filling. Third, teeth... More
