The Merced Sun-Star reports (http://bit.ly/UcrEp2) that 43-year-old Sang Hyuk Park pleaded not guilty on Wednesday.
Park was arrested last month after prosecutors say a woman reported waking up to find her pants down and Park exposing himself during dental treatment.
Prosecutors say three other women with similar claims subsequently came forward. Park was arrested again on Tuesday.
His attorney, Thomas Johnson, says Park is a highly competent dentist, and the District Attorney's Office seems intent on getting him into custody before the case begins.
Information from: Merced Sun-Star, http://www.mercedsun-star.com