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βˆ™ 2011-01-20 06:52:57
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Q: Which teeth are the longest one in the permanent dentition?
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Deciduous teeth appear at the age?

Deciduous teeth, otherwise known as milk teeth, baby teeth, temporary teeth and primary teeth, are the first set of teeth in the growth development of humans and many other mammals. They develop during the embryonic stage of development and erupt---that is, they become visible in the mouth---during infancy. They are usually lost and replaced by permanent teeth, but in the absence of permanent replacements, they can remain functional for many years.Deciduous teeth start to form during the embryo phase of pregnancy. The development of deciduous teeth starts at the sixth week of development as the dental lamina. This process starts at the midline and then spreads back into the posterior region. By the time the embryo is eight weeks old, there are ten areas on the upper and lower arches that will eventually become the deciduous dentition. These teeth will continue to form until they erupt in the mouth. In the deciduous dentition there are a total of twenty teeth: five per quadrant and ten per arch. The eruption of these teeth begins at the age of six months and continues until twenty-five to thirty-three months of age. Usually, the first teeth seen in the mouth are the mandibular centrals and the last are the maxillary second molars.The deciduous dentition is made up of central incisors, lateral incisors, canines, first molars, and secondary molars; there is one in each quadrant, making a total of four of each tooth. All of these are replaced with a permanent counterpart except for the first and second molars; they are replaced by premolars. The deciduous teeth will remain until the age of six. At that time, the permanent teeth start to appear in the mouth resulting in mixed dentition. The erupting permanent teeth causes root resorption, where the permanent teeth push down on the roots of the deciduous teeth causing the roots to be dissolved and become absorbed by the forming permanent teeth. The process of shedding deciduous teeth and the replacement by permanent teeth is called exfoliation. This may last from age six to age twelve. By age twelve there usually are only permanent teeth remaining.Teething age of deciduous teeth:Central incisors : 6--12 monthsLateral incisors : 9--16 monthsCanine teeth : 16--23 monthsFirst molars : 13--19 monthsSecond molars : 22--33 months

Do dogs have a second pair of teeth?

Dogs have similar teeth development to humans - they have one set of deciduous ("baby") teeth and a second set of permanent ("adult") teeth. However, once their permanent teeth come in, there are no replacements for them.

What will you do if you have loose permanent teeth?

Replace it with a fake one at the dentist

What does the dental formula for permanent teeth means?

It tells you how many teeth of each type are found on one side of the mouth.

Do humans have canine teeth?

Yes, humans have four canine teeth, one in each quadrant. They are the longest and most stable teeth in the dental arch.

How can you grow new teeth in adults?

You can not grow new teeth in adults. All humans will have 2 sets of teeth during their lifetime, one being the baby teeth which are lost during childhood and the permanent teeth which are stronger and supposed to last for the rest of your lifetime. If permanent teeth are lost then you may go to a dentist who will direct you to a specialist which will fabricate teeth for you.

What if you lose one of your mollers?

you'd have one less tooth in your mouth, because molars are permanent teeth and are not replaced.

Why would someone need a bridge for their teeth?

done when one or more permanent teeth are lost or pulled. The resulting gap must be filled in to prevent the remaining teeth from shifting.

What about baby teeth that have no adult teeth?

Babies and young children don't have any adult teeth. Baby teeth fall out before permanent teeth emerge through the gum, or if baby teeth have not fallen out before, an emerging permanent tooth pushes the baby one out. In some cases, a permanent tooth can push up either in front of or behind a baby tooth and dental services are needed to remove the baby tooth and to straighten the adult tooth's alignment.

If a child 7 years old broke the front teeth is he going to get a new one?

If those teeth have already been lost and permanent teeth broke, then no. If a baby tooth broke than he will get a new one.

What do you do when an 11 year old has upper permanent teeth coming in in the gum above the tooth that has not fallen out yet?

My kid had similar situation. He had 2 permanent teeth like that. Took him to the dentist and he extracted the one that was coming in the gum.

What are the names and numbers of teeth in an adult human?

Normally, a human receives two sets of teeth during a lifetime. The first (deciduous or primary) set consists of 20 teeth ("baby" teeth). The second (permanent) set usually consists of 32 teeth. In each quadrant, there are eight permanent teeth: two incisors, one cuspid, two bicuspids, and three molars

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