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Scott Sommerdorf | The Salt Lake Tribune Doctor Ken King, left, checks the work done for patient Liliana Uriza done by dental Lennie Mahler | The Salt Lake Tribune Police stop Selam Mohammad as the 19-year-old walked away from a crowd that formed after a Scott Sommerdorf | The Salt Lake Tribune Dental students work on some of the approximately 200 patients served at the semi-an Scott Sommerdorf | The Salt Lake Tribune Dental student Harris Yu waves a red pennant signalling that his patient is ready fo Scott Sommerdorf | The Salt Lake Tribune Dental students work on some of the approximately 200 patients served at the se Scott Sommerdorf | The Salt Lake Tribune Chris Godfrey, a dental student at The Roseman College of Dental Medicine, checks th