what are teeth made out of? thanks.?
919751
Enamel\n\ni think this this the hardest substance in the human body.
214427
Plaque, a sticky substance, forms on our teeth.  This hardens into calculus.
774611
AMALGAM USED IN DENTAL FILLINGS IS PRIMARILY COMPOSED OF LEAD (Pb) AND MERCURY (Hg).THERE'S ALSO SOME OTHER METALS USED TO VARIOUS DEGREES DEPENDING ON THE AMALGAM MANUFACTURER. THESE METALS INCLUDE SILVER(Ag), COPPER (Cu), TIN (Sn)  AND SEVERAL  OTHERS. EACH KIND OF METAL IMPARTS DIFFERENT PROPERTIES.
755171
Yes.  Bone is being made in lab rats by use of cloning.  It will be many years before released for human use (if ever).  They can make new teeth too - in rats of course.  Baby human teeth have been cloned, but are not allowed to be placed in a human yet.
9619
Bone is a relatively hard and lightweight composite material, formed mostly of calcium phosphate in the chemical arrangement termed calcium hydroxyapatite. It has relatively high compressive strength but poor tensile strength. While bone is essentially brittle, it does have a degree of significant elasticity contributed by its organic components (chiefly collagen). Bone has an internal mesh-like structure, the density of which may vary at different points.
612138
thats what makes the teeth straighten
520975
That's an interesting question!\nThe short answer would be "Different evolutionary paths", which is true. But those paths imply adaptive and functional differences. \nThe teeth of sharks are not too different from those of other tetrapods. Aside from birds, most tetrapods have many generations of teeth (this is called polyphyodonty), and those teeth are usually not strongly attached to the jaws. They`re more or less easily lost and replaced during normal activities. So, why don't we mammals have such a useful feature? \nThe loss of all those teeth replacements was a tradeoff for our acquisition of better tooth occlusion. Occlusion is the way the surfaces of the upper and lower teeth contact each other, and in mammals, our chewing teeth (molars and premolars) have complex occlusal surfaces, which allow for slicing food (shearing like scissors), crushing food (cusps and basins that act like a mortar and pestle), and other ways of basically, disintegrating food items. \nThe thing is, the precise interlocking of cusps and vales is not easy to achieve (as anybody with occlusion problems has probably heard from the dentist). So the hypothesis is that the evolutionary path of mammals "focused" on one generation of perfectly occluding teeth. Thus, molars erupt late in life, grow slowly, and are not replaced. And the other teeth (incisors, canines and premolars) have a first, "milk" teeth generation that allows the young mammal to feed while its skull is expanding. Then, by the time its growth has slowed down, the definitive teeth erupt and take their places (they would not fit in the small jaws).\nThe teeth of man, as those of all primates, are brachydont. This means that they don't keep growing once they've erupted completely. However, the enamel that forms the outer cover of the teeth is the hardest substance in our bodies, and is able to endure the wear from our food. However, many other mammals that eat more abrasive foods (plants, and especially grasses) have permanently growing teeth (hypsodonty). This is, in a way, the equivalent of having multiple generations of teeth; their teeth keep growing throughout part of their lives (as in the case of horses) or all of their lives (like many rodents and ruminants). But we cannot "recover" the capacity for multiple teeth generations that we "gave up" evolutionarily when we became mammals.
647809
Chemicals... mostly some kinda acid. And some have nickle in it, but I donno if it'll be a solid (metal) or a liquid form. Bust one open and ya'll find out whats really in one.\n\nAnd also that's why they tell ya not to leave patteries in electonics for long periods of time with no use, cause the battery would start to leak the acid and it could fry the system.
195308
Dentures are made out of arcylic and some resin. Both the pink part and the teeth are acrylic/resin.
272583
All living creatures are made up of carbon.  You can't be alive without it.  It is what separates being a living thing (plant or animal) from a non living thing (stone).
909279
Well, both your teachers are right. :)\n\nAtoms make molecules make cells make tissues make human body.\n\nOther information that you need to know:\n\nA cell is a complex molecule, depending on the type of cell (Eukaryote or Prokaryote; human cells fall in the former category) and humans are complex organisms, therefore their, or, should I say, OUR cells consist of more complex materials than Prokaryotic cells (e.g. of Prokaryotic cells-  Bacteria) In any case, cells contain this thing called the nucleus, and the nucleus is like a 'house' for your genetic material. These genetic material- yes, your DNA, is made up stuff called amino acids, proteins and a sugar called ribose. As you know sugar contains Carbon, Hydrogen and Oxygen. Recognize those? Yes- those are atoms :) And your amino acids are made up of Carbon, Hydrogen, Phosphorus and Nitrogen.\n\nSo to be really technical about it, your body is made up of atoms which then make up cells. It is not wrong to say that in biology, cells make up the basic foundation of the body since Biology looks into the cellular level of the aforementioned subject, and not always at the atomic level.\n\nI hope this answered your question! :)
996309
Can you be a little more specific? Did you mean replacing a tooth without man made materials?
320737
No. Just your liver and brain cells. Nothing so notably important as your teeth, thank god.
664648
Grills are stuff u put on ur teeth. go 2 http://www.llr.state.sc.us/images/dental%20grills%20007.jpg
1164187
http://news.bbc.co.uk/2/hi/health/3679313.stm\n\nNew teeth 'could soon be grown'\n \nLiving teeth are better for gums than false ones \nTechnology to grow replacement teeth could mean the end of dentures. \nScientists at King's College London have been awarded £500,000 to help them develop human teeth from stem cells. \n\nThe company Odontis, set up by the college, hopes to develop its research for tests on humans within two years after successful research on mice. \n\nStem cells, the so-called master cells, would be programmed to develop into teeth and then transplanted into the patient's jaw where the gap is. \n\nIt is thought it would then take two months for the tooth to fully develop. \n\nHealthy gums \n\nBut it could be five years before the technology is widely available to the general public. \n\nOn average Britons aged over 50 lose around 12 teeth out of 32. \n\nProfessor Paul Sharpe is the genetic research scientist behind the technique and head of division of Craniofacial Biology and Biomaterials at the Dental Institute at King's College. \n\nHe said: "A key advantage of our technology is that a living tooth can preserve the health of the surrounding tissues much better than artificial prosthesis. \n\n"Teeth are living, and they are able to respond to a person's bite. \n\n"They move and in doing so they maintain the health of the surrounding gums and teeth." \n\nThe cost should not be more than the price of synthetic implants of between £1,500 - £2,000. \n\nHis project has been awarded £300,000 from the Wellcome Trust, £100,000 from the National Endowment for Science, Technology and the Arts (Nesta) and £100,000 from a business sponsor. \n\nA spokesman for the British Dental Association (BDA) said: "The BDA welcomes projects like Odontis and looks forward to seeing further progress in this field." \n\nhttp://edition.cnn.com/2004/WORLD/europe/05/03/teeth.replace/\n\nhttp://forums.stangnet.com/archive/index.php/t-517536.html
619898
Yes, teeth are composed of four distinct tissues: enamel, dentin, pulp, and cementum.\n\nThe largest organic something in your teeth is Collagen, followed by Enameloid protein, lipids, peptides, glycoproteins, and glycosaminoglycans (long polymers of proteins and carbohydrates, with regular sequences, cf glycoproteins: short polymers with irregular sequences). These are proteins associated with the dentine and basal plate and do not include proteins of cell contents, serum, or organic acids involved in apatite mineralization.\n\nThe largest inorganic something in your teeth is apatite and smaller amounts of other crystalline forms of calcium phosphate and amorphous (non-crystalline) calcium phosphates is also found in the dentine.\n\nfollowed by trace elements of Fe, Zn, Sr, Cu, Mn and Ag.\n\nSo yes.  But I can't see any spinach!
402622
Hydroxyapatite is the material in the enamel of your teeth.  If you brush with a fluoride toothpaste, or get a fluoride rinse at your dentist, the fluoride ion in the rinse/toothpaste replaces some of the hydroxyl groups, converting the hydroxyapatite into fluorapatite.\n\nFluorapatite is a harder material, and more resistant to the acids caused by bacteria in your mouth.  This helps prevent cavities.\n\nHowever, it is important not to overdo the fluoride treatment -- excess fluoride ion in the body reacts with calcium (forming calcium fluoride), which screws up the electrolyte balance in your body, and can kill you.  This is why they recommend spitting out your toothpaste, rather than swallowing it.