Biolase (BIOLQ) 10-K 2022 FY Annual report

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

BIOLASE, Inc.

Lake Forest, California

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-194889, 333-144095, 333-112173, 333-130677, 333-177339, 333-204059, 333-224832, and 333-150105), Form S-1 (No. 333-239876, 333-268528, 333-240060 and 333-238914), and Form S-3 (Nos. 333-233172, 333-222564, 333-219406, 333-200623, 333-198291, 333-214281, 333-175664, 333-141417, 333-106290, 333-89692, and 333-58329), of BIOLASE, Inc. of our report dated March 28, 2023, relating to the consolidated financial statements and schedules, which appears in this Form 10-K.

/s/ BDO USA, LLP

Costa Mesa, California

March 28, 2023