Benjamin Chaffee, DDS, MPH, PhD

Assistant Professor
Preventive & Restor Dent Sci
+1 415 476-9226

The overarching goal of our team’s epidemiologic research program is to understand how various behaviors, biological attributes, and social circumstances influence health and disease distributions, often inequitably, across populations. Application of such knowledge aims to inform future public health practices, health policies, and clinical guidelines that elevate the health of patients and vulnerable communities, both locally and worldwide. We strive for these goals through several recent and ongoing projects, such as: (1) A cohort study of conventional and alterative smokeless tobacco use among adolescents in rural California, including psychosocial influences of behavior and resultant nicotine and carcinogen exposures; (2) Investigations of early-life experiences and infant feeding behaviors in relation to childhood oral health in California and Brazil; (3) Evaluating clinical adoption and the effectiveness of patient-tailored caries-preventive therapies for adult and pediatric dental patients.


Family Health Strategy associated with increased dental visitation among preschool children in Brazil.

International journal of paediatric dentistry

Feldens CA, Fortuna MJ, Kramer PF, Ardenghi TM, Vítolo MR, Chaffee BW

IQOS labelling will mislead consumers.

Tobacco control

McKelvey K, Popova L, Kim M, Lempert LK, Chaffee BW, Vijayaraghavan M, Ling P, Halpern-Felsher B

Noncigarette Tobacco Products-Gateway or Diversion?-Reply.

JAMA pediatrics

Watkins SL, Glantz SA, Chaffee BW

Silver Diamine Fluoride is Effective in Arresting Caries Lesions in Primary Teeth.

The journal of evidence-based dental practice

Crystal YO, Chaffee BW

Changes in Caries Risk in a Practice-Based Randomized Controlled Trial.

Advances in dental research

Rechmann P, Chaffee BW, Rechmann BMT, Featherstone JDB

The Evidence for Caries Management by Risk Assessment (CAMBRA®).

Advances in dental research

Featherstone JDB, Chaffee BW

MI Varnish and MI Paste Plus in a caries prevention and remineralization study: a randomized controlled trial.

Clinical oral investigations

Rechmann P, Bekmezian S, Rechmann BMT, Chaffee BW, Featherstone JDB

Relationship between overweight/obesity in the first year of age and traumatic dental injuries in early childhood: Findings from a birth cohort study.

Dental traumatology : official publication of International Association for Dental Traumatology

Borges TS, Chaffee BW, Kramer PF, Feldens EG, Vítolo MR, Feldens CA

Breastfeeding and Oral Health: Evidence and Methodological Challenges.

Journal of dental research

Peres KG, Chaffee BW, Feldens CA, Flores-Mir C, Moynihan P, Rugg-Gunn A

Feeding frequency in infancy and dental caries in childhood: a prospective cohort study.

International dental journal

Feldens CA, Rodrigues PH, de Anastácio G, Vítolo MR, Chaffee BW

Healthcare Utilization and Expenditures Attributable to Smokeless Tobacco Use among US Adults.

Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco

Wang Y, Sung HY, Lightwood J, Chaffee BW, Yao T, Max W

Perceived Flavored Smokeless Tobacco Ease-of-use and Youth Susceptibility.

Tobacco regulatory science

Chaffee BW, Urata J, Couch ET, Gansky SA

Adolescents' smokeless tobacco susceptibility by perceived professional baseball players' use.

Journal of public health dentistry

Chaffee BW, Couch ET, Gansky SA

Going Global: Toward Competency-Based Best Practices for Global Health in Dental Education.

Journal of dental education

Seymour B, Shick E, Chaffee BW, Benzian H

Smokeless Tobacco Decision-Making Among Rural Adolescent Males in California.

Journal of community health

Couch ET, Darius E, Walsh MM, Chaffee BW

Pediatric Caries Risk Assessment as a Predictor of Caries Outcomes.

Pediatric dentistry

Chaffee BW, Featherstone JDB, Zhan L

Don't throw smokeless tobacco users under the bus.

Addictive behaviors

Elias J, Hendlin Y, Chaffee BW, Ling PM

Perceptions Related to Use of Electronic Cigarettes among California College Students.

Journal of dental hygiene : JDH

Abadi S, Couch ET, Chaffee BW, Walsh MM

Oral health-related quality-of-life scores differ by socioeconomic status and caries experience.

Community dentistry and oral epidemiology

Chaffee BW, Rodrigues PH, Kramer PF, Vítolo MR, Feldens CA

Caries Risk Assessment Item Importance: Risk Designation and Caries Status in Children under Age 6.

JDR clinical and translational research

Chaffee BW, Featherstone JD, Gansky SA, Cheng J, Zhan L

The changing tobacco landscape: What dental professionals need to know.

Journal of the American Dental Association (1939)

Couch ET, Chaffee BW, Gansky SA, Walsh MM

Conditional risk assessment of adolescents' electronic cigarette perceptions.

American journal of health behavior

Chaffee BW, Gansky SA, Halpern-Felsher B, Couch ET, Essex G, Walsh MM

Feeding practices in infancy associated with caries incidence in early childhood.

Community dentistry and oral epidemiology

Chaffee BW, Feldens CA, Rodrigues PH, Vítolo MR

Baseline caries risk assessment as a predictor of caries incidence.

Journal of dentistry

Chaffee BW, Cheng J, Featherstone JD

The Porto Alegre Early Life Nutrition and Health Study.

Revista brasileira de epidemiologia = Brazilian journal of epidemiology

Chaffee BW, Vítolo MR, Feldens CA

Understanding treatment effect mechanisms of the CAMBRA randomized trial in reducing caries increment.

Journal of dental research

Cheng J, Chaffee BW, Cheng NF, Gansky SA, Featherstone JD

Gains in children's dental health differ by socioeconomic position: evidence of widening inequalities in southern Brazil.

International journal of paediatric dentistry

Kramer PF, Chaffee BW, Bertelli AE, Ferreira SH, Béria JU, Feldens CA

Evert J, Drain P, Hall T (eds). Developing Global Health Programming: A Guidebook for Medical and Professional Schools, 2nd Ed. San Francisco: Global Health Education Collaborations Press

Evert J, Drain P, Hall T (eds). Developing Global Health Programming: A Guidebook for Medical and Professional Schools, 2nd Ed. San Francisco: Global Health Education Collaborations Press

Torres HM, Altin N, Amanzadeh B, Carlson K, Chaffee BW, Frazier M, Gillette K A, Johns P, Johnson A, Lauckner H, O’Hearn S, Mulla M, Pedersen DM, Pedersen KJ, Shaw S, Tucker D, Wilson L. Global Health: Health Sciences and Team Based Care. In:

Smoking: Tobacco trends.

British dental journal

Chaffee BW, Couch ET, Essex G, Walsh MM

Maternal oral bacterial levels predict early childhood caries development.

Journal of dental research

Chaffee BW, Gansky SA, Weintraub JA, Featherstone JD, Ramos-Gomez FJ

Excessive gestational weight gain over multiple pregnancies and the prevalence of obesity at age 40.

International journal of obesity (2005)

Cohen AK, Chaffee BW, Rehkopf DH, Coyle JR, Abrams B

Cluster-randomized trial of infant nutrition training for caries prevention.

Journal of dental research

Chaffee BW, Feldens CA, Vítolo MR

Food expenditures, cariogenic dietary practices and childhood dental caries in southern Brazil.

Caries research

Feldens CA, Rodrigues PH, Rauber F, Chaffee BW, Vitolo MR

Effect of zinc supplementation on pregnancy and infant outcomes: a systematic review.

Paediatric and perinatal epidemiology

Chaffee BW, King JC