Why does my tooth have 3 roots?

A rare dental trait that is more common in Asian and Native American populations – three-rooted molars – could have its origins in trysts with our archaic relatives, the Denisovans, according to new research.
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How rare is a tooth with three roots?

Chen et al., (2019) Nature 569, 409–412], possesses an unusual dental feature: a 3-rooted lower second molar. A survey of the clinical and bioarchaeological literature demonstrates that the 3-rooted lower molar is rare (less than 3.5% occurrence) in non-Asian Homo sapiens.
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What does 3 roots on a tooth mean?

Maxillary molars usually have three roots. When an extra root is found on any of these teeth, the root is described as a supernumerary root. The clinical significance of this condition is associated with dentistry when accurate information regarding root canal anatomy is required when root canal treatment is required.
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What causes extra roots in teeth?

These supernumerary roots may be due to the disturbances of the Hertwig's epithelial root sheath forming the root. Cases have been reported where in both the deciduous and permanent dentition exhibiting supernumerary roots.
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Which teeth have 3 root canals?

The maxillary first premolar is the most commonly bi- rooted tooth with occasional presentation of three roots system; it is a transitional tooth between incisors and molars.
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Can a tooth have 3 root canals?

Although a dentist can do a second or third root canal treatment—or more—on a tooth, the results are unpredictable. Even the most skilled dentists can perform root canal treatment that fails. Studies show that root canal treatment has an 86 – 98% success rate.
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How many roots can a tooth have?

Your front incisor and canine teeth (biting teeth) usually have a single root containing 1 root canal. The premolars and back molar teeth (chewing teeth) have 2 or 3 roots, each containing either 1 or 2 root canals. The more roots a tooth has, the longer the treatment will take to complete.
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How many teeth have 3 roots?

The sixth and seventh teeth (molars) usually have two roots on the bottom jaw and three roots on the top jaw. The third molar (wisdom tooth) demonstrates a lot of variability, from 1-3 roots. Usually, the lower wisdom teeth have 2.
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Which teeth have 3 roots in upper jaw?

The roots of maxillary molars are three.
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Can teeth have 4 roots?

Although the incidence of maxillary molars with four roots is rare, they do occur and the clinicians should be aware of this fact and prepared to face this situation. Anatomic variation in the number of roots and root canals can occur in any tooth.
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Do upper molars have 3 roots?

Most previous studies on maxillary molars have reported that these teeth usually have three roots and four canals since an extra canal is often found in the mesiobuccal root. Other anatomical variations in the form of an extra C-shaped canal have also been reported in distobuccal and palatal roots.
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What is a wisdom tooth for?

According to anthropologists, the last set of molars or wisdom teeth, were provisions for our ancestors to help them chew coarse, rough food such as hard items like nuts, roots, meats, and leaves. You do not have to be an anthropologist to know that those teeth have outlived their purpose.
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Do wisdom teeth have roots?

A young adult's wisdom teeth generally have shallow roots, making removal relatively easy. As the wisdom tooth grows, their roots lengthen and grow closer to the sensory nerves. In addition, as we age the bone surrounding the wisdom tooth becomes denser.
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Can a tooth still hurt after a root canal?

Serious Or Prolonged Pain 1-2 Weeks After Treatment Is Not Normal. If you have severe, sharp pain, or pain that's still very intense up to 1-2 weeks after your treatment, this is not normal at all, and it indicates that your root canal has failed, and the infection is still present in the tooth.
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Can a tooth have 4 canals?

According to Skidmore and Bjorndal,9 one third of these molars have four canals. Occasionally, three roots are to be found: usually two distal and one mesial (Fig. 10), rarely one distal and two mesial.
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Do root canals last forever?

According to this report, 98 percent of root canals last one year, 92 percent last five years, and 86 percent last ten years or longer. Molars treated by endodontists had a 10 year survival rate, significantly higher than that of molars treated by general dentists.
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Is it normal to need multiple root canals?

A person that is very healthy may have multiple Root Canals that never give them a problem. An immunocompromised person may find the Root Canal does not treat the tooth adequately. The tooth may become reinfected in a shorter period of time. Root Canals are not a lifetime treatment.
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Why are root canals painful?

A root canal is a major procedure, so pain after a root canal is normal. A root canal involves deep cleaning inside the canals (the inner chamber of the root) of your tooth, which can in turn irritate surrounding nerves and gums. The pain shouldn't last forever.
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Is it OK to leave root in gum?

Much like impacted teeth, which become lodged in gum or bone, retained roots can give rise to infection. This is especially true if the roots are only partially covered. Because the roots are essentially dead material, they can become food for bacteria.
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Why do I have 3 wisdom teeth?

Some people get a wisdom tooth, while others have two, three, four or none at all. Although rare, a person sometimes obtains more than four wisdom teeth. In that case, they call the extra teeth extra teeth. Genetics also plays an important role in the number of wisdom teeth you can develop.
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What happens if you leave a tooth root in your mouth?

An untreated tooth root infection can spread the infection throughout the body and lead to more serious health problems and even cost you your life. Our teeth and gums may be a small part of our body but, like other parts, neglecting your oral health needs impacts your overall health.
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How painful is wisdom teeth removal?

Most people have little to no pain after surgery. You'll likely have swelling and mild discomfort for 3 or so days. Your mouth may need a few weeks to completely heal. Follow your doctor's instructions for a quicker recovery.
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Is wisdom tooth lucky?

A pulled wisdom tooth is a lucky charm. Don't know about the counting of teeth theory but isn't it easy to bring a lucky charm your way – just pull out your wisdom tooth! Another myth associated with wisdom teeth apparently indicates long life, if your wisdom teeth come in late, you will enjoy a long life!
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Can I keep my wisdom teeth?

Some say leave healthy teeth alone

We often tell patients that if their wisdom teeth are healthy and not causing any issues, they don't necessarily need to be extracted. That means your third molars can stay if they are: Healthy and don't show signs of decay. Fully erupted through the gums.
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