Everyone should know the emergency steps of how to save a knocked out tooth because of the time sensitivity issue before the tooth dies. If a tooth that has been knocked out of the mouth can be replaced back into the socket with the first 5 minutes, it has an excellent chance of survival. Yes, it is possible for the tooth to survive a longer time period if the moist remains moist.
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It is critical that the tooth be stored in a glass of milk (covering the tooth) or the person’s own saliva to prevent the tooth from drying. Any longer than this, a tooth essentially becomes a ‘graft’ (no longer recognized by the body as ‘self’) and affects the ability to regenerate periodontal ligament cells — the living cells on the root surfaces that connect them to the bone of the tooth socket.
Children have 20 primary teeth that will fall out and be replaced with adult set of teeth that consist of 8 incisors, 4 canines, 8 premolars, and 12 molars (including 4 wisdom teeth). If an adult tooth is knocked out, it is still possible to save the tooth if you work fast and follow the correct steps.
Click here to read about How To Save a Knocked Out Tooth:
http://www.aae.org/patients/symptoms/knocked-out-teeth.aspx