for females (full criteria)
Healthy Volunteers
healthy people welcome
study started
estimated completion
Principal Investigator
by Lisa Berens, DDS, MPH
Headshot of Lisa Berens
Lisa Berens



A five-year, Phase III, multi-site, cluster randomized controlled clinical trial will evaluate the efficacy of the CenteringPregnancy (CP) Oral Health Promotion (CPOP) intervention. Intervention and control groups will be drawn from 6 CP sites. Prenatal care facilitators will conduct the intervention in group prenatal care sessions. With an average of 4 CP facilitators per site (24 facilitators), conducting 2-3 CP groups each (48-72 CP groups with 8 mother/child dyads per group), the total study population will be approximately 384 dyads. CP facilitators will be randomly assigned to either the: 1) intervention arm and deliver the CPOP intervention; or 2) control arm and deliver the usual CP curriculum. The CPOP intervention consists of two 15-minute modules: 1) maternal oral health (OH) and 2) infant OH. The data collection will continue through 12 months postpartum. For the maternal OH module, pre- and post-intervention dental exams of gingival OH and Plaque Levels, and knowledge, attitudes and behavior (KAB) questionnaires during the prenatal period will be used to assess maternal OH outcomes. For the infant OH module, pre and post-module KAB questionnaires will be completed during the prenatal period. Infant OH risk status - the presence of caries-causing bacteria (mutans streptococci and Lactobacilli) in saliva of both mother and infant will be assessed when the infant is 12 months of age to determine differences in study arms.

Official Title

CenteringPregnancy Oral Health Promotion (CPOP) Clinical Trial


Oral Health, Pregnancy, Maternal Oral Health, Infant Oral Health, CPOP Intervention


You can join if…

Open to females


  • speak, read, or write in English or Spanish
  • enrolled in CP prenatal group care identified as study group
  • free of any condition that requires them to take antibiotic or antibacterial medication prior to dental procedures
  • provide informed consent


  • healthy with no acute or chronic medical conditions, especially those conditions that may have resulted in hospitalizations and subsequent exposure to pathologic microorganisms
  • free of any condition requiring antibiotic treatment currently or within the past three months.
  • mothers provide informed consent for their children at baseline

You CAN'T join if...

  • none

Lead Scientist at UCSF

  • Lisa Berens, DDS, MPH
    Professor, Preventive & Restor Dent Sci, School of Dentistry. Authored (or co-authored) 12 research publications. Research interests: Implementation Science · People with limited English proficiency · Socioeconomically marginalized groups · Pregnant women · infants · Clinic · Community-based organization · Prenatal care groups in community clinic settings · Education · Support groups


not yet accepting patients
Start Date
Completion Date
University of California, San Francisco
Study Type
Expecting 384 study participants
Last Updated