Deutsche Bank analyst Glen Santangelo says the recent selloff in shares of Dentsply Sirona puts increased pressure on the board to name a new CEO. The analyst keeps a Buy rating on the shares and hopes a new CEO is named prior to the Q4 earnings announcement. Santangelo sees a "small chance" of Mark Thierer being appointed as permanent CEO. However, the company's presentation at an investor conference on Tuesday sent a strong signal that the board may be moving in another direction with a new candidate, Santangelo tells investors in a research note.