Mandibular 2nd Molar
Succedaneous
The process of tooth formation, called odontogenesis, is divided into three primary periods: growth, calcification, and eruption.
relatively thin
900000 inches!
permanent tooth during the eruption process
A shedded primary tooth root is usually small, slender, and cone-shaped. It may appear slightly curved and have a smooth surface. The root may be light in color and can vary in length depending on the type of tooth it belonged to.
to support, maintain and retain the tooth .
The most important thing primary (deciduous or baby) teeth do for the succedaneous (adult) teeth is maintain space.When primary teeth are prematurely lost, the teeth (or tooth) posterior to the lost tooth migrate toward the front and midline. At the same time the opposing teeth, that is the teeth in the opposing arch (uppers for lowers and vice versa) super erupt into the empty space. As a result of this movement, a primary tooth that is lost too soon may exacerbate, or result in, crowding and a bad bite (malocclusion) if the space previously occupied by the tooth is not otherwise maintained.On the other hand, sometimes primary teeth do not exfoliate when they should. In this case, the primary tooth may actually cause problems because the succedaneous tooth can't go where it needs to go.Word to the wise: Do not extract your child's baby teeth! Leave that for the dentist. Don't be fooled, there is much that can go wrong and it may impact your child for the rest of his/her life.
The most important thing primary (deciduous or baby) teeth do for the succedaneous (adult) teeth is maintain space.When primary teeth are prematurely lost, the teeth (or tooth) posterior to the lost tooth migrate toward the front and midline. At the same time the opposing teeth, that is the teeth in the opposing arch (uppers for lowers and vice versa) super erupt into the empty space. As a result of this movement, a primary tooth that is lost too soon may exacerbate, or result in, crowding and a bad bite (malocclusion) if the space previously occupied by the tooth is not otherwise maintained.On the other hand, sometimes primary teeth do not exfoliate when they should. In this case, the primary tooth may actually cause problems because the succedaneous tooth can't go where it needs to go.Word to the wise: Do not extract your child's baby teeth! Leave that for the dentist. Don't be fooled, there is much that can go wrong and it may impact your child for the rest of his/her life.
The largest region of the primary root is the cortex. It is made up of loosely packed parenchyma cells.
tyrannosaurus rex tooth is the largest and longest tooth ever discovered. it measured 10 inches. spinosaurus tooth is only 4 inches, giganotosaurus tooth is 8 inches, and carchdontosaurus tooth is 9 inches. tyrannosaurus is the king! t-rex also was the biggest carnivore!
The largest complete megalodon tooth ever foundmeasures just over 7" in slant height