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A 50-year-old man, a smoker, presents to clinic with pain of the tooth #15 with apparently occlusal trauma (Fig.1). The premolars have long curved roots with apparently vertical bone loss at #13. All of the evidence suggests bruxism and heavy mastication.
Xin Wei, DDS, PhD, MS 1st edition 06/22/2012, last revision 12/09/2017