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Hi ryankoenig,

My lower L. molar at the back (#7) is only about 1 mm above gum line. I spoke with a periodontist about crown lengthening. He mentioned something about 5 mm. I don't know whether...

My lower L. molar at the back (#7) was badly damaged, had root canal treatment and filling and was then fitted with a crown in 2009. In 2012 this crown started to come off very often. My dentist said...