A dentist is a doctor of oral health who holds either a Doctor of Dental Surgery (DDS) or a Doctor of Medicine in Dentistry (DMD) degree. These are doctoral-level professional degrees, much like a physician’s MD, but focused on the mouth, teeth, gums, jaw, and surrounding structures. Dentists are licensed healthcare providers who can diagnose diseases, perform surgery, administer anesthesia, and prescribe medications, including controlled substances.
DDS and DMD Are the Same Degree
One common point of confusion is the two different abbreviations you’ll see after a dentist’s name. The DDS and DMD use the same curriculum requirements and represent identical levels of training. The only difference is which title a particular dental school chooses to award. A dentist with a DMD has the same education and qualifications as one with a DDS.
How Dental School Compares to Medical School
Dental school is a four-year doctoral program that closely mirrors the structure of medical school. The first two years focus heavily on biological sciences: anatomy, physiology, biochemistry, microbiology, and pharmacology. Students also take dental-specific courses in oral pathology and oral anatomy. Outside of lectures, they practice procedures on models of the mouth and teeth in simulation labs.
The third and fourth years shift almost entirely to clinical work, where students treat real patients under the supervision of licensed instructors. Many programs rotate students through hospitals, community clinics, and other off-campus settings. By graduation, dental students have spent years learning the same foundational medical sciences as physicians, plus specialized training in oral and facial structures.
After dental school, graduates must pass the Integrated National Board Dental Examination (INBDE), a two-day exam accepted across all U.S. states and territories. Most states also require a separate clinical licensing exam before a dentist can practice independently.
What Dentists Are Licensed to Do
Dentists do far more than fill cavities and clean teeth. Their license allows them to diagnose oral diseases, take and interpret X-rays, perform surgical procedures, administer local and sometimes general anesthesia, and biopsy suspicious tissue. They can also prescribe a full range of medications. Any dentist who prescribes controlled substances, such as strong pain relievers or certain sedatives, must register with the Drug Enforcement Administration and renew that registration every three years.
Dentists are also trained to spot signs of broader health problems. Significant associations exist between oral health and conditions like cardiovascular disease, diabetes, Alzheimer’s disease, rheumatoid arthritis, and several cancers. A dentist reviewing your medical history before treatment may notice connections between what’s happening in your mouth and what’s happening elsewhere in your body. In some cases, a dentist is the first provider to flag a systemic condition, such as when gum disease in a child turns out to be a sign of an underlying illness.
The 12 Recognized Dental Specialties
Just as physicians can specialize in cardiology or neurology, dentists can pursue advanced training in one of 12 recognized specialties. These require additional years of residency after dental school. The specialties cover a wide range of medicine:
- Oral and maxillofacial surgery: Surgical treatment of the mouth, jaw, and face, including facial fractures, tumor removal, jaw reconstruction, and cleft palate repair. These specialists often work in hospitals, admit patients to intensive care, and administer general anesthesia.
- Orthodontics: Diagnosis and correction of misaligned teeth and jaw structures.
- Endodontics: Treatment of the inner tissue of the tooth (root canals).
- Periodontics: Treatment of diseases affecting the gums and bone that support the teeth.
- Pediatric dentistry: Oral health care for infants, children, and adolescents, including those with special health needs.
- Oral and maxillofacial pathology: Diagnosing diseases that affect the mouth and facial regions, including cysts and tumors.
- Oral and maxillofacial radiology: Specialized imaging and interpretation for diagnosis of oral and facial conditions.
- Dental anesthesiology: Managing pain, anxiety, and patient safety during dental and oral surgical procedures.
- Oral medicine: Caring for patients whose medical conditions complicate their oral health.
- Orofacial pain: Diagnosing and treating pain disorders of the jaw, mouth, face, head, and neck.
- Dental public health: Preventing dental disease through community-level programs.
- Prosthodontics: Replacing missing teeth and restoring oral function with crowns, bridges, dentures, and implants.
How Dentists Differ From Physicians
The key distinction is scope. A physician (MD or DO) is trained to diagnose and treat conditions across the entire body. A dentist’s training and license focus specifically on the oral and maxillofacial region. Both are doctors. Both complete doctoral programs built on the same core medical sciences. Both can prescribe medications and perform surgery within their scope of practice.
Where the lines blur most is oral and maxillofacial surgery. These dental specialists repair facial fractures, perform reconstructive surgery, manage trauma in emergency settings, and operate under general anesthesia. Some complete additional medical school training on top of their dental degree. In hospital settings, they evaluate patients, perform comprehensive histories and physicals, and consult alongside physicians in emergency and intensive care units.
So while your general dentist isn’t the same as your primary care physician, dentistry is a fully independent branch of medicine with its own doctoral training, licensing exams, prescriptive authority, and surgical scope. A dentist is a doctor in every meaningful sense of the word.