Dental fillings are one of the most common treatments in restorative dentistry, used to repair and restore the structure of teeth damaged by decay or trauma. On average, a dental filling can last around 10 years. But this timeframe can vary depending on several factors like the type of filling and a person’s oral hygiene habits.
The Purpose of Dental Fillings
The primary purpose of dental fillings is to address cavities – the decayed parts of the tooth that develop into small openings or holes. If left untreated, cavities can lead to severe toothache, infection, and even tooth loss. Fillings are necessary to ‘fill’ these cavities after the decayed material has been removed, thus restoring the tooth’s shape and function. Beyond cavity treatment, fillings also help to repair cracked or broken teeth and teeth that have been worn down from misuse, such as from nail-biting or teeth grinding.
Types of Fillings and How Long They Last
There are four main choices of fillings that are used, depending on the extent of the repair, where in the mouth the filling is needed, and the cost.
Amalgam Fillings
Amalgam fillings are the most commonly used and are known for their durability and strength. They are made from a mixture of metals, including silver, mercury, tin, and copper. This type of filling has been used for over a century and is most suitable for fillings in the back teeth where the chewing forces are greatest. Amalgam fillings can last anywhere from 10 to 15 years, sometimes even longer with proper care.
Composite Fillings
Composite fillings are made from a resin and plastic material that can be matched to the colour of your teeth, offering a more natural appearance. They bond directly to the tooth, providing strong support. Composite fillings are ideal for the front or visible parts of the teeth. While composite fillings offer a more aesthetic appeal, they tend to have a shorter lifespan, usually between 5 to 10 years.
Gold Fillings
Gold fillings are made to order in a lab and then cemented into place. They are not as common due to their high cost, but gold fillings are highly durable and often last more than 20 years, making them an option for those looking for longevity.
Ceramic Fillings
Ceramic fillings are typically made of porcelain, and are both durable and aesthetically pleasing, matching the natural colour of the tooth. They are resistant to staining and wear but can be as expensive as gold fillings. Ceramic fillings can last over 15 years.
Factors Influencing the Lifespan of Fillings
The actual lifespan of a dental filling in your mouth could be longer or shorter, depending on the several factors, such as:
- Material of the Filling: Different materials have different lifespans, influenced by their inherent properties and how well they withstand the forces of chewing.
- Location of the Filling: Fillings in teeth that perform most of the chewing work, like molars, may wear down faster than those in other areas.
- Patient’s Oral Hygiene Habits: Regular brushing, flossing, and dental check-ups can extend the life of a filling, while neglect can lead to decay under or around the filling.
- Biting and Chewing Habits: Habits such as nail-biting, grinding, or chewing on hard objects can put undue pressure on fillings, leading to cracks or fractures.
- Size of the Filling: Larger fillings that cover more of the tooth’s surface area may be more prone to stress and, thus, have a shorter lifespan than smaller fillings.
The best way to ensure the longevity of your dental fillings is to maintain good oral hygiene practices, schedule regular dental check-ups, and address any habits that might compromise the integrity of your fillings. Regular visits to your dentist can help detect any issues with existing fillings before they become significant problems, potentially extending their lifespan and maintaining your oral health.
Can a Tooth Filling Be Replaced?
Dental fillings are durable and essential for restoring the health of decayed or damaged teeth, but they are not permanent fixtures. Over time, they may wear down, become damaged, or simply stop providing the protection your tooth needs. If/when this happens, you’ll need to get your tooth filling replaced.
Signs Your Filling Needs Replacement
Several indicators can signal it’s time to consider replacing a dental filling. These signs can help you address issues before they escalate:
- Pain or Sensitivity: If you start experiencing new or increased sensitivity or pain around a filled tooth, it could be a sign that the filling is failing.
- Visible Damage: Cracks, chips, or wear on the filling itself are clear indicators that the integrity of the restoration has been compromised.
- Discoloration or Staining: While some change in colour can be normal, significant staining or discoloration on or around the filling may suggest degradation.
- Feeling a Rough Edge: If you can feel a rough edge with your tongue or a piece of the filling seems to be missing, it’s time for a replacement.
- Food Getting Stuck: If food consistently gets stuck where it didn’t before, the filling may have shifted or worn down.
Schedule A Dental Filling Consultation
Dental fillings are a fundamental component of restorative dentistry, designed to repair damage and prevent future decay. Yet, their lifespan can vary significantly, influenced by factors such as the filling material, the tooth’s location, and your oral hygiene practices.
Are you due for a dental filling check-up, or perhaps considering your options for a new dental filling? Don’t let questions linger or small issues grow into larger concerns. Take the first step towards a healthier smile by booking an appointment with Dentistry on Coolum today. Whether it’s assessing the state of existing fillings or exploring the best filling options for your situation, we’re here to help.