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Therapeutic Craze Strains and Fractures with Hydroxyapatite

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Cracked tooth are the third commonest purpose for tooth loss.1 However in the case of your tooth, a crack is not only a crack. 

You’ll have what seems like cracked tooth, however it might simply be a craze line or craze fracture. Cracked tooth could also be an emergency, however a craze line is a beauty concern.

Dentists typically discover it difficult to outline cracks in tooth. There are such a lot of completely different levels of cracked tooth, with every one requiring a singular resolution. 

On this article, we’ll talk about what craze strains and craze fractures are. We may also have a look at signs, causes, and the right way to deal with them, together with whether or not you should use hydroxyapatite for therapy.

What are craze strains?

Craze strains are superficial strains with slight vertical splits within the outer layer of the tooth enamel. They’re generally referred to as hairline cracks or superficial cracks. 

Whereas craze strains don’t have an effect on your bodily well being, you could discover that their visibility makes you unhappy along with your smile.

In people who smoke or espresso drinkers, craze strains could seem as stain strains in your tooth. 

What causes craze strains?

Craze strains can happen because of the regular getting older of the tooth—from put on and tear over time. 

Craze strains may also be attributable to:

  • Grinding of tooth. Quickly-formed craze strains might be the results of tooth grinding.
  • Sleep bruxism. The hallmarks of sleep bruxism, a sleep-related motion dysfunction, are tooth grinding and clenching, which might result in craze strains.2 
  • Unhealthy habits. For those who continuously chunk your fingernails or chew gum, these unhealthy habits can result in craze strains. 
  • Orthodontics gone mistaken. In case your tooth usually are not positioned correctly after an orthodontic process, it might result in the formation of craze strains. 

Craze strains vs. craze fractures

Craze strains that go deeper are referred to as craze fractures. Deep fractures are harmful as a result of they could be colonized by bacterial biofilms. Dentists typically take out fillings to see how deep the strains have gone. 

While you chunk on a fractured tooth, you could really feel ache. Over time, the crack can propagate and have an effect on the pulp, and you’ll find yourself with a dying tooth. 

In lots of circumstances, cracks that stretch to the pulp may cause signs starting from acute irritation to whole pulpal necrosis.3 It’s possible you’ll want an intervention that stops the crack from propagating additional. 

Trauma may also trigger your higher and decrease jaw to hit collectively and trigger a craze fracture in your tooth.

What are the signs of craze strains and craze fractures?

Sufferers expertise completely different signs which will or could not point out craze strains.

A crack that doesn’t present any indicators or signs, comparable to sizzling or chilly sensitivity, might be a craze line. You shouldn’t fear about it however level it out to your dentist.

Nonetheless, in the event you’re experiencing ache while you chunk or chew, you’ll have a craze fracture. 

How can dentists assist deal with craze strains?

Common visits to your dentist will help determine a craze line or deep fracture. 

While you go to your dentist, she or he could use dental imaging expertise often called indocyanine-green-assisted near-infrared fluorescence (ICG-NIRF) to detect any cracks in your enamel. ICG-NIRF may also detect points like dental caries and decays. 

Throughout ICG-NIRF dental imaging, the enamel is illuminated with mild on the excitation wavelength of about 750-800 nm, after which it’s noticed at longer wavelengths of over 800 nm.4 ICG is nice as a result of it’s non-toxic and nonionizing

For those who suppose you’ve a craze line, the very first thing you need to do is schedule an appointment along with your dentist. You don’t need that craze line to deepen and grow to be a craze fracture. 

Sadly, if the fracture goes under the gum line or to an space that we can not attain, like a restoration with a crown and filling, it’s going to leak micro organism, have an effect on the pulp, and lead to bone loss. So don’t let that fracture propagate under the gum line, or we will be unable to extract it.  

Craze strains are innocent, however in the event you insist on therapy, your dentist could provide the next beauty procedures:

  • Tooth whitening. This works greatest in case your craze strains are stained. People who smoke and occasional drinkers could profit from tooth whitening. Tooth whitening won’t take away craze strains however will enhance their look.
  • Porcelain veneers. Dental porcelain veneers are made up of skinny shells that may bond on to your tooth. They will masks stains similar to tooth whitening however are extra sturdy. Porcelain veneers additionally have to be custom-made for every tooth. 
  • Beauty bonding. Dentists can use one thing referred to as composite resin to masks the looks of craze strains. Beauty bonding is extra inexpensive than porcelain veneers. 

Can you employ hydroxyapatite toothpaste to heal craze strains and fractures?

The brief reply is, “no.” Fluoridated or hydroxyapatite toothpaste can not seal craze strains. Hydroxyapatite toothpaste is useful for remineralizing broken tooth. Nonetheless, remineralization can not happen in craze strains or fractures as a result of they’re continuously transferring. 

Nonetheless, as a useful dentist, I like to recommend common use of hydroxyapatite toothpaste and never fluoridated toothpaste. Though extra persons are turning into conscious of the substances they cook dinner with, they don’t examine for the substances of their toothpaste model. 

Sadly, adults and youngsters are continuously uncovered to poisonous substances of their properties or locations they go to ceaselessly. Some examples of dangerous metals and chemical substances are lead, mercury, arsenic, glyphosate, and chemical substances present in air air pollution.

It’s almost not possible to manage the extent of publicity to all of those poisonous substances. However in the case of fluoride, it’s a no brainer: you possibly can change fluoride in toothpaste with hydroxyapatite.

What precisely is hydroxyapatite?

It’s possible you’ll be questioning what hydroxyapatite is and why it’s in toothpaste.

Hydroxyapatite, in its pure kind, is a type of calcium that makes up 97% of your tooth enamel and 70% of the dentin of your tooth. The remainder of your enamel is definitely composed of water, collagen, and different proteins.

The fantastic thing about hydroxyapatite is that we don’t have to remove one thing that stops decay—now we have a substitute that isn’t poisonous, is biomimetic, and has confirmed to be secure.

You may heal cavities and forestall new ones from forming by remineralizing your tooth. Hydroxyapatite is one very efficient method to do this.

Hydroxyapatite performs simply in addition to fluoride, in some circumstances higher, with not one of the toxicity considerations. 


Craze strains and fractures are troublesome to diagnose, however by means of cautious examination, your dentist can decide what you’re coping with.

For those who suppose you’re experiencing ache due to a craze line or fracture, inform your dentist.

Hydroxyapatite or fluoride won’t heal your craze strains or craze fractures. Nonetheless, think about using hydroxyapatite toothpaste for different advantageous properties.

Common visits along with your dentist shall be useful in case you want an intervention in your craze strains or fractures. 


1. Li Z, Holamoge YV, Li Z, et al. Detection and evaluation of enamel cracks by ICG-NIR fluorescence dental imaging. Ann N Y Acad Sci. 2020;1475(1):52-63. doi:10.1111/nyas.14374

2. Bruxism (tooth grinding) – Signs and causes. Mayo Clinic. Accessed April 2, 2021.

3. Ricucci D, Siqueira JF, Loghin S, Berman LH. The cracked tooth: histopathologic and histobacteriologic features. J Endod. 2015;41(3):343-352. doi:10.1016/j.joen.2014.09.021

4. Alander JT, Kaartinen I, Laakso A, et al. A Evaluate of Indocyanine Inexperienced Fluorescent Imaging in Surgical procedure. Wei G, ed. Worldwide Journal of Biomedical Imaging. 2012;2012:940585. doi:10.1155/2012/940585



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