Why is my tooth sensitive after a filling?

Tooth sensitivity is a common issue many people face temporarily after a dental procedure, especially after having a tooth filling. Ever wondered why?

In this article, we will explore the reasons behind tooth sensitivity after a filling, identify what is normal and what is not normal, delve into the factors contributing to this sensation, and when to seek further help.

Why are fillings needed?

To help you understand why you may experience sensitivity after a filling, it’s important you understand what a cavity is and why a filling is needed to treat it. Teeth cavities are small holes or damaged areas of your teeth. They’re generally caused by improper teeth hygiene, excessive sugar consumption, genetics or even certain bacteria. Some of the most common symptoms of teeth cavities include:

• Sudden onset of a toothache

• Pain biting down

• Increased tooth sensitivity

• Pain when consuming hot, cold, or sweet food or beverages

• Holes or staining in your teeth

Cavities are one of the most common problems that drive people to the dentist. They are often created when food or drink that contains carbohydrates is consumed and isn’t removed by flossing or brushing. Instead, these carbohydrates coat the teeth and build up. As this occurs, the bacteria in your mouth breaks down these sugars, converting them into acids in your mouth. These acids, bacteria, and your saliva create plaque, which clings to your teeth and ultimately damages the enamel. When the enamel is damaged, your teeth are more susceptible to decay.

Why are my teeth sensitive after a filling?

Unfortunately sometimes despite our best efforts, people need a cavity or two filled. Having a tooth filling is a simple way of repairing teeth that have decay in them. It is one of the most common dental procedures that people have done and usually takes no more than an hour.

One of the typical complaints following a filling is increased teeth sensitivity. So what causes teeth to be sensitive after a dental filling? Sensitivity can be a normal occurrence, which can be due to one or multiple causes. However, some causes can also be abnormal and should be checked out by your dentist. Here are some of the reasons.

The nature of the procedure

One of the main reasons for this increase in sensitivity is that filling a cavity involves removing decayed tooth material. Filling a tooth exposes the inner layers of the tooth, including the dentine. Dentine contains microscopic tubules that connect to nerve endings, and when exposed, they may react to stimuli, leading to temporary sensitivity.

The type of material used for your tooth filling

For some individuals, the choice of filling material is another crucial factor influencing sensitivity. The bonding process employed during a filling has the potential to cause irritation to the nerve, leading to tooth sensitivity.

The size of the cavity that needs filling

The size, depth, and overall severity of your cavity can affect tooth sensitivity. This is largely because deeper cavities tend to be closer in proximity to the tooth’s nerve. The closer it is to the nerve, the more likely it is to be sensitive. In other situations, the dental pulp (which houses your tooth’s nerve) might experience inflammation or irritation during the procedure.

Pulpitis

When a tooth is filled, the process involves removing decayed or damaged portions, potentially exposing the pulp to external stimuli. Although quite rare, pulpitis may occur if the pulp tissue becomes inflamed or irritated during this process leading to tooth sensitivity.

What should I do if my tooth is sensitive after a filling?

The good news is that if your tooth is sensitive after a filling, in most cases, it should go away on its own. Temporary tooth sensitivity is normal to experience after having a procedure like a filling done. In general, tooth sensitivity should last no longer than a few days to around a week, depending on the factors identified above.

Try to avoid eating on the affected tooth shortly after. This can help to minimise discomfort and sensitivity and assist in the healing process. You shouldn’t need over-the-counter pain relievers, nor should you experience more severe symptoms like swelling or fever.

If you are experiencing additional symptoms like increased pain or a fever, or if you’re still experiencing sensitivity for longer than a week, you should contact your local dentist for advice. Issues like these are abnormal and could indicate infection or other problems with the healing process that needs to be addressed by a dentist.

Thus it’s important to take action as soon as possible in order to protect both your teeth and gums, as well as your overall health.

Book an appointment with Cambridge City Dental to discuss tooth sensitivity

Are your teeth sensitive to hot and cold after a filling, or are you concerned you may have a cavity that needs filling? Don’t hesitate to reach out to our friendly team right away! Here at Cambridge City Dental, we strive to provide Perth residents with quality and compassionate dentistry services. We perform a large range of routine dental care and procedures, as well as cosmetic dentistry services to keep your teeth looking and feeling their very best. You can book an appointment online or by calling 9382 8266.

Don’t delay seeking help for sensitive teeth. Chat to the dentists at Cambridge City Dental today!