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A 43-year-old man requests #17 extraction (Fig.1,2); the tooth #18 has large periapical radiolucency at the distal root. Similar to his son, he has crowding with #10 cross bite, #11 labioversion and a possible supernumerary tooth (11').
Xin Wei, DDS, PhD, MS 1st edition 10/02/2018, last revision 01/06/2019