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| | Crown (dentistry) - Wikipedia, the free encyclopedia (via CobWeb/3.1 planetlab2.cs.unc.edu) (Site not responding. Last check: 2007-10-12) |
 | | Preparation of a tooth for a crown involves removal of a significant amount of tooth structure, which is an irreversible procedure. |
 | | Additionally, crowns, like all dental restorations, do not last forever; the average lifespan of a crown is around 10 years, but they can last up to 30 years with proper care, though this depends on the skill of the dentist and technician, the material used, and most important the oral hygiene of the patient. |
 | | Placing a full coverage crown results in no tooth surfaces being present in the mouth for pulp testing with an electric pulp tester, which is a vital part of endodontic diagnosis to some practioners but worthless to others. |
| en.wikipedia.org.cob-web.org:8888 /wiki/Crown_(dentistry) (1179 words) |
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