By now, you know how many times we’ve had to take out a toothpaste or other toothbrush after accidentally sucking on a toothpick or other item.

But a tooth brush that can “deepen” a tooth can be especially worrisome.

A recent study in the Journal of the American Dental Association found that the deep sound of toothbrushes can trigger a range of adverse effects, including dental fluorosis, tooth erosion, and tooth damage. 

Researchers analyzed more than 5,000 dentists’ reports of cases of “deep sound” in the US, and found that about one-third of them were linked to the toothbrush.

The researchers theorized that this sound could cause “subtle pressure,” causing a “subluxation of the pulp, the inner layer of the tooth, through the mouthpiece, resulting in cavities.”

The study authors suggested that this is particularly likely to happen when the tooth brush is being used to brush the teeth while the patient is sitting in a chair or on a plane, which can cause a “head-on” blow to the lower jaw.

Researchers also found that nearly two-thirds of those who had a deep sound reported experiencing “unusual dental symptoms,” including pain or swelling, and more than half of them had symptoms of fluorosis. 

As the researchers explain, this is because the pressure of the brush against the lower teeth can cause the toothpaste to “bend” and break, creating a “focal cavity.”

It’s possible that deep sound may also be a trigger for dental fluorosclerosis, which affects about 4 percent of the US population. 

While the researchers aren’t sure what triggers the “deep tone,” they do speculate that “the softness of the surface and the intensity of the sound are known triggers.”

In a press release, the researchers wrote that further research is needed to understand how “deep-sound triggers can be misidentified.” 

What you need to know about fluoride and dental health: If you’re worried about dental fluoroses, it’s important to understand what’s happening with fluoride in your mouth and teeth. 

Fluoride is an essential part of tooth decay prevention and treatment.

Fluoride neutralizes fluoride in the body, and when the fluoride in our bodies is removed from our system, our teeth don’t get a break. 

However, there are other sources of fluoride in a person’s system, and it’s not clear how much fluoride is actually in toothpaste and other products. 

If your dentist has told you that your toothpaste contains too much fluoride, ask for a sample of toothpaste.

You can test toothpaste for fluoride by spitting in a cup or jar, or you can do a mouth-to-mouth test with a toothbrushing tube. 

Your dentist can also tell you about toothpastes and toothpaste ingredients, which are generally lower in fluoride. 

You can also learn more about the types of fluoride used in toothpastries and toothpaste by visiting the Environmental Working Group’s Foxtrot website.

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