Materials technology company Confluent Medical Technologies has appointed Matthew K. Eckl as CFO. Eckl joins Confluent from CECO Environmental where he served as CFO. Previously he served as vice president of finance for Energy Group and Global Aftermarket division of Gardner Denver, and in various financial roles at GE. From left, the two managing partners, Dr. Wolf Herold and Sabine Herold, and the two new managing directors, Dr. Karl Bitzer and Christian Walther. Courtesy of DELO. SUDBURY, Mass. — DELO has appointed Karl Bitzer and Christian Walther as managing directors. Robert Saller, previously a managing director, has resigned from the board but will remain as an authorized signatory. Sabine Herold and Wolf Herold, owners of DELO, remain part of the management board. LAKE FOREST, Calif. — BIOLASE, a developer of dental laser technology, has appointed Russell Morrow as chief dental officer (CDO), effective Nov. 1. Samuel Low, who has served as CDO since 2016, will take on the role of vice president of clinical strategic alliances. Kevin Ressler. Courtesy of Coorstek. GOLDEN, Colo. — CoorsTek has named Kevin Ressler as chief commercial officer. Ressler joins CoorsTek from MKS Instruments where he most recently served as vice president of pressure and flow measurement and control. Prior to MKS, Ressler served in a variety of senior roles at Commscope. He holds a doctorate in electronic materials management from the MIT and a bachelor’s degree in ceramic science and engineering from Penn State.