Supernumerary Teeth (Hyperdontia)
These teeth rarely erupt and usually develop inside the gums, which can cause all sorts of crowding and misalignment with other teeth.
Fusion of three teeth, a rare dental anomaly with the prevalence of 0.02%, is defined as triplication [4], [5], [6]. The etiologic factors of triplication include trauma, evolution, heredity, local factors, environmental influences, vitamin deficiency and space deficiencies in the dental arch [7], [8], [9].
Studies have estimated that anywhere between 0.1% and 3.8% of people have supernumerary teeth. The incidence rate is significantly higher among children with cleft lip and palate and those with certain syndromes.
For teens and other age groups, the most vulnerable teeth to cavities and decay are those in the back of your mouth. Known as molars or premolars, this category includes wisdom teeth—if you keep them in, that is.
The Hardest Teeth
The hardest substance ever discovered in nature is the tooth of a limpet (sea snail). They have a tensile strength between 3 and 6.5 gigapascals, breaking the previous record of spider silk at 1.3 GPa. Limpets need super hard teeth in order to chew the algae off of hard rocks.
Teeth Around the World: The Good, the Bad, the Ugly
With a DMFT (decayed, missing, or filled teeth) index score of 0.4, Danish citizens have pretty perfect teeth. Germany, Finland, Sweden, and the UK all have scores below 1.0, making them the five countries with the healthiest teeth.
It is very rare to see someone with the maximum possible of 32 teeth in the mouth (including wisdom teeth) that are optimally aligned and functional.
The most common age to have wisdom teeth removed is between 16 and 20. Some children require their wisdom teeth removed as early as 12 years and other children are well into their adult years before needing to consider wisdom teeth removal.
Those with 31-32 teeth would enjoy fame and respect in society. They will also be affluent. In case you have only 28-30 teeth, a mixed fate awaits you; there could be joy as well as sadness in life. Meanwhile, those having 25-27 teeth are likely to face health issues throughout their lives, says Samudrika Science.
The world's most expensive tooth has been determined to be John Lennon's molar. The auction was won in Stockport, and ended at an unbelievable $31,000 U.S. Smashing the world record for the Most Expensive Tooth in the world. The man who bought the tooth is a dentist who lives and works in Red Deer, Alberta.
The CDC also reports that 7% of Americans have lost at least one permanent tooth to decay by the time they reach their 17th birthday. The older you get, the worse the statistics become. The number increases to 69% when you get to the age group of 35 to 44. Keep in mind, this is about tooth loss due to decay.
The presence of extra roots in MSMs has been described by several authors, and the reported incidence of 4-rooted MSMs ranges from 0.98% to 5.6%. However, extremely few cases have been reported in the literature in which a living human subject was found to have a 5-rooted MSM.
Snails have more teeth than any animal.
This is TRUE. A snail's mouth is no larger than the head of a pin, but can have over 25,000 teeth (but these aren't like regular teeth, they are on its tongue).
Teeth 1-16
Our first 16 teeth are located at the top of the mouth. We start with Tooth #1, a molar on the back right side of our mouths known as the upper right quadrant. Dentists and dental hygienists will count through to Tooth #16, located in the upper left quadrant.
Shark's teeth are among one of the most common vertebrate fossils that you can find, but the skeletons are exceptionally rare.
Your child will be numbed during the extraction, meaning they won't experience discomfort. However, they might feel little to no pain after the anesthetic wears off.
Kids can show signs of wisdom teeth problems as early as 12 or 13 years of age, while others may not notice a problem until they're in their 20s. Once you reach your 30s, wisdom teeth complications are much more likely to occur.
Yes, many teens get their wisdom teeth removed. For some teens, it is because they have an impacted wisdom tooth or are experiencing pain, swelling, and other symptoms.
While there have been rare cases of hyperdontia, where an individual is born with extra or supernumerary teeth, for most of us, two sets of teeth are the maximum we will ever have. That is why it is important to take care of the teeth you do have because you won't get another chance.
Milk teeth
These teeth start developing before a baby is born and will normally start to come through when an infant is between 6 and 12 months old. By the time a child reaches 3 years they can expect to have a full set of 20 milk teeth. They'll keep this set for another few years.
For example, in some cultures, it is believed that if the wisdom teeth grow in straight and healthy, it is a sign of good luck and fortune. In other cultures, it is believed that third molar teeth bring bad luck and that they should be removed as soon as possible to avoid any negative consequences.
Background: Australian adults reportedly have poor oral health when compared to 28 other OECD countries. The Australian ranking was based on edentulism and caries experience data from selected age groups that apparently were collected in 1987-88.
1) ORCA - Orcinus Orca. The Orca or Killer Whale is the largest member of the dolphin species family and has the sharpest teeth of all animals. Orcas are predators; they are at the top of the food chain in marine life. No other animal preys on orcas; they can even hunt seals, sharks, and dolphins.
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