4 Signs Your Filling Needs to Be Replaced

Neither amalgam nor composite resin fillings last forever and there will come a time when they need to be replaced either due to them degrading as a result of their age or due to trauma. When a damaged filling is not replaced, a bacterial infection can develop in the tooth pulp, which puts you at an increased risk of gum disease and tooth loss. So being aware of the signs of a damaged filling can ensure you get it replaced before complications arise. Read on to learn about four common signs your filling needs to be replaced.

Pain And Sensitivity

If you start experiencing tooth sensitivity when you eat or drink something hot, cold or sweet, the filling may be compromised even if you aren't able to see any damage yourself. A damaged filling will allow food particles or liquid to enter the soft pulp, which can trigger nerve sensitivity. You may also experience pain when chewing, particularly when eating hard foods, such as nuts. This can be caused by a loose filling pressing against the tooth nerve when you bite down. Pain and sensitivity are very common early symptoms of a damaged filling.


Damaged or old amalgam fillings can leak their colour slightly, which can cause the affected tooth to appear darker, particularly around the perimeter of the filling. Composite resin fillings will start to turn yellow or appear darker when they are either cracked or degrading due to age. Replacing these fillings will protect your oral health and allow you to maintain the appearance of your smile.

Floss Shredding

Fillings that extend down the side of your tooth or are tucked away between two teeth are difficult to assess. Your dentist may not have clear access to these fillings, but there is a warning sign that a filling on the side of your tooth is breaking down. If you find your floss is shredding, a side filling may be chipped or partially broken, which will create rough edges that catch on the floss. You should report floss shredding to your dentist for further investigation.

Fine Cracks

Sometimes you'll be able to run your tongue over a tooth and feel fine cracks on the surface of a damaged filling or the tooth itself. Fine cracks may feel rough or like ridges and can allow bacteria to enter the tooth pulp and cause deep decay.

If you're concerned about any of your fillings, don't wait until your next routine check-up. Contact your dentist as soon as possible for advice.

About Me

Dentistry Tips That Do a World of Good

My name's Alberto, and I'm an avid globetrotter. I've picked up so many great tips and tricks from my years of travelling. Surprisingly, some of the most useful advice I've received from natives and tourists around the world is about dental care! I'd love to share this oral health wisdom with as many people as possible, so I've started this blog on teeth tips to show you what I've learned. I'll be posting advice on all sorts of dental issues that will help you keep your teeth healthy no matter what culture you're from. I hope the guidance in my posts will keep a bright, white smile on your face wherever you are in the world.



Latest Posts

2 January 2024
Maintaining good oral hygiene is crucial for overall health and well-being. Brushing and flossing regularly is essential, but preventative dental care

19 October 2023
As orthodontic treatment becomes more accessible to adult patients, Invisalign has become increasingly popular. The clear aligners are a discreet alte

27 June 2023
You may think of dental care in terms of oral hygiene and visiting your dentist for cleaning and check-ups. And you may have been taught at a young ag