EXHIBIT 23.4 ------------ CONSENT OF INDEPENDENT AUDITORS We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-58329 and 333-31023) of our report dated June 25, 1998 relating to the financial statements of Laser Skin Toner, Inc. which appears in the Current Report on Form 8-K of BioLase Technology, Inc. dated July 17, 1998. /s/ STONE CARLIE & COMPANY, L.L.C. Stone Carlie & Company, L.L.C. St. Louis, Missouri July 16, 1998