Benzinga's Top #PreMarket Losers By: Benzinga via Benzinga September 16, 2015 at 08:19 AM EDT Sirona Dental Systems, Inc. (NASDAQ: SIRO) shares dipped 6.35 percent to $93.00 in pre-market trading. DENTSPLY International Inc. ... Read More >> Related Stocks: DENTSPLY International FedEx Corp Monster Beverage PattersonCompanies