Can Laser Teeth Whitening Help with Darkened Fillings?

Laser Teeth Whitening

My symptoms include having previously had cavities that were filled, and while they look fine now, the filled areas appear dark.
This is because the cavities were not completely cleaned out during the filling process, as I was concerned about damaging the nerves.
Therefore, I would like to ask if I can undergo laser teeth whitening in this situation.
If so, what would the approximate cost be?

Xiao Yu Er, 20~29 year old female. Ask Date: 2002/04/24

Dr. Chu Boqin reply Dentistry

The normal color of teeth is white, but after decay, certain areas may change color.
High-speed dental drills with diamond burs can be used to remove these discolorations, and any remaining affected dentin can be scraped off manually or removed with a slow-speed handpiece.
However, if the decay has reached the pulp and caused pain, the tooth may gradually turn black, indicating pulpitis and potential necrosis.
Diagnosis can be made using X-rays and pulp vitality testing.
If the discoloration is simply around the cavity, it can be removed and filled without the need for extensive treatment or expense.
Thank you.
I hope you find this response satisfactory.

Reply Date: 2002/04/24

More Info

Laser teeth whitening is a popular cosmetic dental procedure that can effectively brighten natural teeth. However, when it comes to darkened fillings, the situation is a bit more complex. Fillings, especially those made from amalgam (a mixture of metals), do not respond to whitening treatments in the same way that natural tooth enamel does. This is primarily because the materials used in fillings are not porous and do not absorb whitening agents.

If your fillings appear dark or discolored, it is essential to understand that laser whitening will not change the color of these materials. Instead, the whitening process will only affect the surrounding natural teeth. Therefore, if you have darkened fillings, the contrast between the whitened teeth and the fillings may become more pronounced after the whitening treatment, potentially making the fillings appear even darker in comparison.

In your case, since you mentioned that the fillings were done previously and that there might be some concerns about the integrity of the tooth structure (such as the possibility of not completely removing the decay), it would be advisable to consult with a dentist before proceeding with any whitening treatment. Your dentist can evaluate the condition of your fillings and the underlying tooth structure. If the fillings are old or showing signs of wear, your dentist might recommend replacing them with more aesthetic materials, such as composite resin, which can be color-matched to your natural teeth.

Regarding the cost of laser teeth whitening, it can vary significantly depending on the dental practice, the region, and the specific technology used. On average, you might expect to pay anywhere from $300 to $1,000 for a single session of laser whitening. Some dental offices may offer package deals or promotions that can reduce the cost, so it's worth inquiring about these options.

In summary, while laser teeth whitening can effectively enhance the brightness of your natural teeth, it will not improve the appearance of darkened fillings. If your fillings are a concern, consider discussing replacement options with your dentist. Additionally, always consult with a dental professional before undergoing any cosmetic procedures to ensure that you achieve the best possible results while maintaining the health of your teeth.

Similar Q&A

Can Whitening Toothpaste Fix Discoloration After Dental Filling?

Hello Dr. Tseng, when I was a child, I had a cavity treated by a dentist at a clinic. After the treatment, I noticed a dark yellowish line on my front tooth. Can I remove it by using whitening toothpaste, or should I see a dentist to have the tooth restored to look better? Thank ...

Dr. Zeng Guanghui reply Dentistry
If there is still a black and yellow line after filling a cavity, using whitening toothpaste is unlikely to remove it. It is recommended to return to the dentist for a re-evaluation and possibly a re-fill of the cavity. Dr. Tseng Guang-Hui, Department of Dentistry, Nantou Hospita...

Can Whitening Treatments Help Dark Teeth After Root Canal?

Hello, today I visited a nearby dental clinic to consult with the dentists regarding my two severely discolored teeth, which are significantly affecting my appearance. The dentist mentioned that this is due to having had root canal treatment and recommended that I consider crowns...

Dr. Wu Jinjun reply Dentistry
Hello: Teeth that turn black after root canal treatment usually cannot be whitened through bleaching methods. They indeed require a crown for protection, which can achieve aesthetic results and also prevent tooth fracture. Proper usage and maintenance of the crown are essential t...

Is It Normal for a Filled Tooth Gap to Look Dark? Dental Insights

There is a cavity in the gap of my front tooth. The dentist said it couldn't be completely cleaned out due to pigmentation deposits. After the filling, I noticed that the gap where the filling is looks dark when I use dental floss at night. Is this a normal phenomenon? What ...

Dr. Zeng Guanghui reply Dentistry
Hello Mr. Chang: If the pigmentation is deeply embedded, it cannot be removed by polishing with talcum powder. Without affecting the health of the periodontal tissues, it may be possible to simply fill it in. If aesthetics are a concern, you might consider removing the stained co...

Can Cavities Only Be Treated with Crowns? Exploring Dental Options

Hello, I have a concern regarding my lower left molar. In September, I had a small cavity filled with resin on the inner side near the gum. However, a few days after the filling, I felt discomfort and inflammation in the surrounding gum area. In October, I switched to a different...

Dr. Lin Jiayong reply Dentistry
Hello: 1. The dark area needs to be evaluated for potential decay reaching the dental pulp or root, as the extent of the caries will influence the treatment plan options. 2. The choice between inlays or crowns should be based on the "material," "remaining tooth str...