Understanding Tooth Filling Discoloration and Lifespan
Do you often wonder if your tooth filling is changing color because of rotting or just aging? This article will explore the reasons behind the change in the color of your tooth filling, how long it typically lasts, and what you should do if you notice any changes.
Reasons for Discolored Tooth Fillings
There can be multiple reasons for a change in the color of your tooth filling. The most common reasons include:
Discoloration from Age
Over time, tooth fillings can become stained due to food, beverages, and tobacco use. This is especially common with composite tooth-colored fillings. As these materials interact with the substances you consume, they can absorb pigments and cause discoloration.
Material Degradation
Some materials, such as amalgam, are more prone to darkening or developing surface corrosion, leading to a brownish appearance. This degradation can be due to the chemical composition of the material or environmental factors like exposure to moisture.
Cavity Underneath
If there is decay beneath the filling, this can cause discoloration around the filling. This indicates that there may be an underlying issue that needs to be addressed to prevent further damage to the tooth.
Lifespan of Tooth Fillings
The lifespan of tooth fillings can vary depending on the type of material used and the condition of the tooth. Here is a breakdown of the typical lifespan of different types of tooth fillings:
Amalgam Fillings
Typically, amalgam fillings can last between 10 to 15 years. These fillings are known for their durability, but they do not deteriorate easily and can turn dark over time.
Composite Fillings
Composite fillings usually last about 5 to 10 years, depending on the location and care. These fillings are tooth-colored and blend well with natural teeth, making them a popular choice.
Gold Fillings
Gold fillings can last 15 years or more. They are known for their longevity and durability, but can be more expensive than other materials.
Ceramic Fillings
Ceramic fillings typically last 5 to 15 years. They provide a more natural appearance and can be customized to match the surrounding teeth.
Recommendations
If you notice changes or discoloration in your tooth filling, the best course of action is to consult with a dentist. They can assess whether the change is due to simple aging or if there is an underlying issue that needs to be addressed. Regular dental check-ups are essential to monitor the condition of your fillings and overall oral health.
It's important to note that tooth fillings do not inherently rot; the tooth around them can. Composite fillings, which are the most common, last approximately 3 to 5 years. If you have an old filling that is discolored, it's best to have it professionally checked. Silver fillings can turn dark over many years but can last up to 50 years or more.
For your specific case, any discoloration in the past year after two old fillings gave way and the teeth cracked, indicates a potential issue. This might be due to repeated thermal expansion or parafunction. Given that the fillings were over half a century old, it's crucial to seek professional advice to ensure your oral health remains in good condition.
Discoloration in acrylic-based fillings is natural and can be due to the catalysts that cause yellowing over time. If the margins of the filling are leaking, you may notice dark, possibly black, discoloration. The longevity of acrylic fillings can range from 2 to 6 years, with some lasting much longer.
The fundamental issue with acrylic fillings is the bonding directly to the tooth, especially under the gum line. Any moisture at the edge of the filling can inhibit the bond, causing the filling to leak as soon as it's placed. In this scenario, the filling may not last a year and will need to be redone promptly.
New cast porcelain fillings are incredibly durable and can last longer than the surrounding tooth structure. They do not change color and are a top choice for those who value aesthetics and durability.