What Is Dental and Oral Health Research? Areas, Funding, and Careers

Dental and oral health research is the scientific study of the diseases, development, and function of the teeth, mouth, jaws, and surrounding craniofacial tissues — and of the ways to prevent, diagnose, and treat conditions affecting them. The field is often written “dental, oral, and craniofacial” (DOC) research, the phrase the US National Institute of Dental and Craniofacial Research uses for its own scope. It spans laboratory biology, clinical trials, epidemiology, behavioral science, materials engineering, and health-services research, and it is organized around a clinical profession (dentistry) in the way that nursing science is organized around nursing. This page explains what the field covers, how it is funded and trained, and where it meets research administration. It is an overview of a research discipline, not clinical or dental advice.

What Dental and Oral Health Research Covers

The field is defined less by a single method than by an anatomical and clinical territory: the oral cavity, the teeth and their supporting tissues, the salivary glands, the temporomandibular joint, and the craniofacial skeleton. Researchers ask questions such as why dental caries (tooth decay) develops in some mouths and not others, how the bacterial communities of the mouth shift in gum disease, how the face and jaw form before birth and why that process sometimes goes wrong, how chronic orofacial pain is generated and sustained, and which restorative materials last longest in the mouth.

The scale of the problem is a large part of why the field exists. The World Health Organization’s 2022 Global Oral Health Status Report estimated that about 3.5 billion people live with oral diseases, a burden that is growing in low- and middle-income countries, and WHO identifies untreated tooth decay as the most common health condition in the Global Burden of Disease analysis. Severe gum disease is estimated to affect more than one billion people, and WHO estimates roughly 390,000 new cases of oral cancer were diagnosed worldwide in 2022. In the United States, the Surgeon General’s report Oral Health in America (2000) argued that oral health is integral to general health and described a “silent epidemic” of dental and oral diseases concentrated in vulnerable populations.

How It Relates to Neighboring Fields

• Public health. Dental public health applies population methods to oral disease: surveillance, fluoride policy, school-based programs, and access to care. See What Is Public Health? for the parent discipline.
• Medicine and nursing. Oral health research increasingly studies the links between oral conditions and systemic disease, and shares clinical-trial and outcomes methods with medicine; see What Is Nursing Science? for a comparable clinically organized field.
• Microbiology. The oral microbiome is one of the most intensively studied human microbial communities; see What Is Microbiology?
• Biomedical and materials engineering. Dental implants, ceramics, composites, and tissue-engineered scaffolds sit at the boundary with biomedical engineering and materials science.
• Health services research. Questions about dental workforce, insurance coverage, and quality of care are studied with the methods described in What Is Health Services Research?

Major Subfields

NIDCR’s published list of scientific areas of interest is a useful map of the field, because it reflects what a large funder considers in scope. It includes the following areas, which also correspond to how many university departments and journal sections are organized:

• Cariology and odontogenic disease — the biology, risk factors, and prevention of tooth decay and related disease of the tooth and its pulp.
• Periodontal research and host–immune interactions — how inflammation and immune responses drive destruction of the tissues supporting the teeth, and how the oral microbiome contributes.
• Oral microbiome research — bacterial, fungal, and viral communities in health and disease, and polymicrobial infection.
• Oral mucosa and oral cancer biology — cancers of the oral cavity, pharynx, and salivary glands, and conditions of the oral mucosa.
• Craniofacial biology and congenital anomalies — how the face, jaw, and teeth develop, and the genetics of conditions such as cleft lip and palate.
• Orofacial pain and neuroscience — including temporomandibular joint and muscle disorders.
• Salivary gland biology and rheumatic disease — including autoimmune conditions that affect salivary function.
• Regenerative medicine and dental biomaterials — repair and restoration of teeth, bone, and soft tissue, and the clinical technologies that deliver it.
• Precision medicine, computational biology, and data science — applying genetics, multi-omics, and analytics to prevention, diagnostics, and therapy.
• Behavioral, epidemiologic, and health-services research — patient behavior, population-based studies of oral health, and oral–systemic health integration.

Alongside these biomedical areas, the traditional dental specialties — for example periodontics, orthodontics, endodontics, prosthodontics, oral and maxillofacial surgery, pediatric dentistry, and oral pathology — each maintain their own clinical research traditions and professional journals.

Methods and Study Designs

Dental research uses the standard toolkit of clinical and biomedical science, adapted to the mouth as a study site.

• Randomized controlled trials. Trials of preventive agents, restorative materials, periodontal therapies, and pain interventions follow the usual conventions for randomized controlled trials and are registered in ClinicalTrials.gov. Because teeth within one mouth are not independent, dental trials need careful attention to the unit of analysis (the patient, the tooth, or the tooth surface).
• Observational designs. Cohort and case-control studies, compared in Case-Control Study vs. Cohort Study, underpin oral epidemiology, including national oral health surveys.
• Systematic reviews. Cochrane Oral Health, one of the Cochrane review groups, produces systematic reviews of interventions for oral and dental conditions. Searching this literature in PubMed relies on subject headings; see MeSH Terms in PubMed, and for appraising included studies see JBI Critical Appraisal Checklists.
• Laboratory and translational methods. Cell and animal models of oral disease, microbial sequencing and multi-omics, imaging of mineralized tissues, and mechanical and chemical testing of materials.
• Materials and device research. Testing of biocompatibility, wear, and bonding; related regulatory material appears in FDA Medical Device Regulations and Biocompatible 3D Printing Materials.
• Qualitative and behavioral methods. Interviews, surveys, and behavioral interventions on topics such as dental anxiety, care-seeking, and oral hygiene behavior.

A Short History

Organized dental science in the United States grew from professional dentistry and public health. A landmark came in 1945, when Grand Rapids, Michigan became the first US city to add fluoride to its public water supply to prevent tooth decay, and the community became a landmark long-term study of children’s cavity rates. Community water fluoridation was later named by the US Centers for Disease Control and Prevention as one of the ten great public health achievements of the twentieth century.

The International Association for Dental Research (IADR) was founded in 1920 in New York by William Gies. In 1948 the National Dental Research Act established the National Institute of Dental Research, the predecessor of today’s NIDCR, as part of the National Institutes of Health. The Commission on Dental Accreditation (CODA) was established in 1975. In 2000 came the Surgeon General’s report on oral health, and in 2021 the World Health Assembly adopted a resolution on oral health that led to a Global Strategy on Oral Health (approved in 2022) and a Global Oral Health Action Plan for 2023–2030.

Who Funds Dental and Oral Health Research

• NIDCR. The National Institute of Dental and Craniofacial Research is part of the NIH and is the dedicated federal funder for the field. Its stated mission is to advance fundamental knowledge about dental, oral, and craniofacial health and disease and to translate that knowledge into prevention, early detection, and treatment. It supports extramural research at universities and runs an intramural program on the NIH campus. Awards use standard NIH activity codes; for the current funding picture across institutes, see NIH Paylines FY2026.
• Other NIH institutes. Work that touches oral cancer, pain, infection, aging, or the microbiome may be funded by other institutes whose missions fit the subject, a pattern common across NIH.
• Professional and industry sources. Dental associations, foundations, and manufacturers of dental materials and devices also fund research. Industry funding raises the conflict-of-interest and data-sharing questions that every research office handles.
• International funders. National health research councils and WHO-linked programs support the field outside the United States; funding arrangements differ by country.

Because NIH requires a data plan with applications, see also NIH Data Management and Sharing Plan.

Societies, Journals, and Accreditation

Societies

• IADR — the international research association, founded in 1920, with more than 10,000 members worldwide according to its website. Its full name is the International Association for Dental, Oral, and Craniofacial Research. Its American division is the American Association for Dental, Oral, and Craniofacial Research (AADOCR).
• American Dental Association (ADA) and American Dental Education Association (ADEA) — the professional and educational bodies; CODA’s commissioners are drawn from a broad community of interest that includes the ADA, ADEA, specialty organizations, and public representatives.
• Specialty academies such as the American Academy of Periodontology, which publishes the Journal of Periodontology.

Journals

• Journal of Dental Research — the official journal of IADR and AADOCR.
• Community Dentistry and Oral Epidemiology — a peer-reviewed journal covering dental public health and the application of epidemiology to dentistry.
• Journal of Periodontology — the periodontics specialty journal noted above.

Accreditation

CODA is recognized by the US Department of Education as the accrediting agency for dental and dental-related education programs at the post-secondary level, evaluating more than 1,400 programs including predoctoral, advanced, and allied dental education. Accreditation shapes research capacity because standards for dental curricula and advanced programs influence faculty, time, and facilities.

Training and Career Paths

Most US dentists hold a DDS or DMD degree after dental school; a research career typically adds structured research training. Several NIH mechanisms are commonly used along a dentist-scientist pathway:

• Dual-degree training. Students can pursue a DDS/DMD together with a PhD, supported by individual F30 fellowships and institutional T32 or T90 training grants. See NRSA and T32 vs. F32.
• Postdoctoral training. F32 fellowships and institutional training grants support recently graduated dentist-scientists.
• Career development awards. K01, K08, K23, and K99/R00 awards are commonly used by dentist-scientists and generally require a substantial protected research effort; check each announcement for the current minimum. See K08 vs. K23.

Non-dentist scientists — microbiologists, geneticists, engineers, epidemiologists, and behavioral scientists — make up a substantial share of the field and typically enter through PhD programs in dental school research departments or related graduate programs. Academic dental schools employ both clinician-researchers and full-time scientists.

Where Dental Research Meets Research Administration

• Human subjects. Clinical dental studies involving patients go through an institutional review board. Patient records in a dental school clinic carry privacy obligations in addition to research consent.
• Clinical trial operations. Trial registration, monitoring, and reporting follow the same rules as any clinical research, but dental clinics sometimes lack the dedicated research infrastructure of a hospital, which makes clinic workflows and staffing a recurring administrative issue.
• Devices and materials. Studies of dental implants, restorative materials, and instruments may trigger device regulation.
• Funding and training grants. Fellowship and career award administration, effort reporting for K awards, and institutional T32 management are central to dental school research offices.
• Conflicts of interest and industry agreements. Relationships with device and materials manufacturers require disclosure and careful contract review.
• Data sharing. NIH data sharing requirements apply to dental research funded by NIDCR.

Frequently Asked Questions

What does dental research study?

It studies the diseases, development, and function of the teeth, mouth, jaws, salivary glands, and face, along with the prevention, diagnosis, and treatment of conditions that affect them, including tooth decay, gum disease, oral cancer, craniofacial birth conditions, and orofacial pain.

What is the difference between dental research and dentistry?

Dentistry is the clinical profession that diagnoses and treats oral conditions. Dental research produces the evidence that clinical practice relies on. Many researchers are also dentists, but many are not.

Who is the main US funder of dental research?

The NIH’s National Institute of Dental and Craniofacial Research (NIDCR), established in 1948 as the National Institute of Dental Research.

What is the IADR?

The International Association for Dental, Oral, and Craniofacial Research, founded in 1920, is a research society whose official journal is the Journal of Dental Research.

Do you need a dental degree to do dental research?

No. Scientists from many disciplines work in the field. A dental degree is, however, the entry point to the dentist-scientist training pathway described above.

Where can I find systematic reviews on oral health?

Cochrane Oral Health produces systematic reviews of oral health interventions; PubMed searches with MeSH terms also retrieve primary studies.