Why Do My New Composite fillings Hurt?

I’ve had to put off teeth whitening because I have four small composite fillings that are painful. I received the fillings in early September. I get a brief sharp pain when I chew hard or crunchy foods. The pain isn’t worse, but it’s consistent. Also, I’ve noticed that I don’t feel the pain when I clench my teeth tother.

After my online search about this issue, it seems that I need to find a dentist who uses self-etching primers or a glass ionomer base. I’ve called a few dental offices, but the receptionists don’t know what I’m talking about. How can I find the right dentist to replace the fillings? – Thanks. Eve from S. Carolina


The sensitivity you describe occurs more often with small fillings than large ones.

Why Do New Composite Fillings Hurt?

The reason that new composite fillings hurt seems to be related to a dentist bonding the filling to dentin of the tooth. Most dental office receptionists are not familiar with self-etching primers or glass ionomer bases. Maybe a dental assistant who helps the dentist with the procedure might be familiar with the terms.

Although Dr. Lacy would need to examine your teeth, two possible solutions include:

Schedule an appointment to make your request – Before allowing a dentist to work on your teeth, insist on a glass ionomer base beneath the filling to protect the dentin and keep composite away from it. If the dentist doesn’t agree with your request, find another dentist.

Find an advanced cosmetic dentist – You might have to travel to find a cosmetic dentist who is familiar with self-etching primers and glass ionomer base. A dentist with post-graduate training in cosmetic dentistry knows how to protect your teeth, and you don’t have to explain your position or tell the dentist what materials you want in your teeth.

Photo of upper and lower teeth whitening trays in a blue case; for information on teeth alignment from the office Plano dentist Dr. Miranda Lacy.
Teeth whitening can further irritate sensitive teeth

Although a cosmetic dentist would usually whiten your teeth first and place the fillings afterward to match them, your teeth are sensitive. The bleaching gel can increase sensitivity. Speak with the dentist about the best time to start teeth whitening treatment.

Miranda Lacy, DDS, a Plano, TX, female dentist sponsors this post.

Her Dentist Used the Wrong Color Bonding – Can It Be Fixed?

I visited three dentists for consultations and quotes for composite filling on 15 teeth. I chose the most affordable dentist because the bonding cost more than I expected. The dentist did the bonding for sensitivity near the gumline, not for cosmetic reasons.

Immediately after the dentist finished the work, I could see that she chose the wrong color bonding. And the fillings look pasty and rough. I no longer get compliments on my white teeth.

Do I have the get the boning on all 15 teeth removed and reapplied? Or can new boning be added over the old? What are the risks? I should add that several of the teeth already had bonding on them that started to chip. So, for those teeth, this would be the third round of bonding. – Thanks. Kasey from Albany, GA

Kasey – We’re sorry that you’ve had a bad experience with bonding. The lack of technique isn’t necessarily because you chose a dentist with affordable fees. A good family dentist should be able to get the color, textures, and polish right for fillings at the gumline.

Do your composite fillings need to be replaced?

Your composite fillings might need to be replaced depending on the shade and the extent of correction required.

A few facts:

  • A dentist might need to replace your fillings if the color is significantly off.
  • A dentist can remove some of the surfaces and resurface them with another color.
  • It’s not difficult to tell where the composite ends and the tooth structure begins, so replacing the fillings is easy.
  • Dental burs will selectively remove composite without harming your tooth structure.

Sensitive areas at the gumlines of teeth

Front tooth showing a wide notch at the gumline
Tooth abfraction lesion

Sensitive areas at the gumlines of teeth are called abfraction lesions. In the photograph, tooth enamel near the gumline is worn and leaves a notch that is often sensitive to air or touch. Research reveals that the primary cause of abfraction lesions is clenching your teeth. Clenching causes the tooth to flex and weaken at the gumline. Eventually, the tooth in that area wears away.

An experienced dentist will determine the cause of sensitivity at your gumline and select durable and flexible materials for clenching. Stiff composite materials will pop out under the force of clenching. But flexible materials like Silux Puls and Renamel look natural and are strong enough to stay intact.

If your dentist cannot correct your composite fillings, you can find a dentist who is skilled in bonding techniques and has affordable fees.

Plano, TX, female dentist, Miranda Lacy, DDS, sponsors this post.