| http://www.w3.org/ns/prov#value | - when it is prepared (drilled down) for a crown. it usually heals but not always--- sometimes root canal treratment is needed. i always explain this possibility to my patients before i do any drilling at all on any tooth but especially for crowns since so much tooth structure is removed. the other thing it coulod be is a poorly fitting temporary that irritates the tissues around the tooth or perhap
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