Acologix S-1 IPO registration

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Form S-1 of our report dated May 9, 2006, except for the effects of Note 3 and Note 13, as to which the date is August 16, 2006 relating to the financial statements of Acologix, Inc., which appears in such Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

San Jose, California

August 16, 2006