The Difference Between a Dentist and an Orthodontist — And Why It Matters

What Is a Dentist?

A dentist is your primary oral healthcare provider — the professional you visit regularly to keep your teeth, gums, and mouth in good shape. Think of a dentist the same way you'd think of a general physician. Just as a GP handles a broad range of health concerns and refers you to a specialist when needed, a dentist takes care of the wide spectrum of oral health issues and refers you to a specialist — like an orthodontist — when a condition falls outside their scope of practice.

Dentists are trained to diagnose, prevent, and treat a wide range of issues affecting the teeth, gums, and other parts of the mouth. They complete four years of undergraduate education followed by four years of dental school, earning either a DDS (Doctor of Dental Surgery) or DMD (Doctor of Dental Medicine) degree. After graduation, they must pass both written and clinical licensing exams before they can practice.

Services Provided by General Dentists

• Routine cleanings and oral exams
• Cavity fillings and restorations
• Root canals and endodontic referrals
• Tooth extractions
• Crowns, bridges, and veneers
• Gum disease screening and treatment
• Teeth whitening and cosmetic dentistry
• Dental implant placement or referral
• X-rays, diagnostic imaging, and oral cancer screening
• Fluoride treatments and dental sealants
• Patient education on oral hygiene practices

In short, your dentist is the professional responsible for your overall oral health maintenance. They're the ones who catch early signs of decay, gum inflammation, and other oral health concerns — and they're typically the first to spot alignment and bite issues that need the attention of an orthodontist.

What Is an Orthodontist?

An orthodontist is a dental specialist who focuses specifically on diagnosing, preventing, and treating problems related to the alignment of teeth and jaws. Their work centres on correcting what's known as malocclusions — conditions where the teeth and jaws don't meet or function properly.

Here's the critical distinction: all orthodontists are dentists, but not all dentists are orthodontists. Every orthodontist first completes the same dental education as a general dentist. But after earning their dental degree, they go on to complete an additional two to three years of full-time, specialised residency training in an accredited orthodontic program — accumulating over 3,700 hours of focused training on tooth movement, jawbones, facial bones, and soft tissue.

Conditions Treated by Orthodontists

• Crooked or crowded teeth
• Gaps and spacing between teeth
• Overbites — upper teeth protruding over lower teeth
• Underbites — lower teeth sitting in front of upper teeth
• Crossbites — upper and lower teeth not aligning laterally
• Open bites — upper and lower teeth not meeting when mouth is closed
• Jaw misalignment and asymmetry
• TMJ disorders related to bite dysfunction

Common Orthodontic Treatments

• Traditional metal braces
• Ceramic and lingual braces
• Self-ligating bracket systems
• Clear aligners (e.g. Invisalign, ClearCorrect)
• Palatal expanders
• Retainers and space maintainers
• Headgear and other functional appliances

Education and Training: Where the Paths Diverge

The most significant distinction between a dentist and an orthodontist comes down to education and specialised training. Both professionals begin on the same educational path — a four-year undergraduate degree, followed by four years of dental school. Up to this point, their training is identical. But this is where paths diverge.

A general dentist can begin practising immediately after dental school and passing licensing exams — roughly eight years of higher education in total.

An orthodontist, however, must apply and be accepted into a highly competitive residency program. These programs are among the most selective in dentistry, accepting only a few applicants per year. The residency lasts an additional two to three years and involves intensive study of craniofacial biology, biomechanics, growth and development, and advanced clinical techniques for moving teeth and aligning jaws. In total, an orthodontist completes approximately 10–11 years of education.

This additional training means an orthodontist has spent thousands of hours focusing exclusively on how teeth move, how jaws grow and develop, and how to plan and execute complex treatments that alter the bite and alignment of the entire dental structure.

Scope of Practice: A Direct Comparison

One of the most practical differences between a dentist and an orthodontist is the range of services each one provides. Here's how they compare:

It's worth noting that orthodontists do not perform cleanings, oral surgery, or tooth extractions. Similarly, while some general dentists do offer orthodontic services like clear aligners, they haven't undergone the same depth of specialised residency training that an orthodontist has.

Can a General Dentist Do Orthodontic Work?

This is one of the most commonly asked — and most important — questions. The short answer is: in many jurisdictions, yes, legally they can. Many general dentists offer clear aligners or even braces as part of their practice, sometimes after completing short continuing education courses.

However, there's a meaningful difference between being legally permitted to offer a service and being extensively trained to deliver that service at the highest level. The American Association of Orthodontists uses a helpful analogy: a dentist may be able to perform a root canal, but that doesn't make them an endodontist. A dentist may be able to extract a tooth, but that doesn't make them an oral surgeon. In the same way, a dentist may provide braces or aligners, but that doesn't make them an orthodontist.

Orthodontists offer multiple types of treatment — including retainers, clear aligners, and traditional braces — and are trained to select the right approach for each case. General dentists offering orthodontic services often provide only one brand or type of aligner.

If a case involves complex crowding, significant jaw discrepancies, surgical planning, or growth modification in children, seeing a trained orthodontist becomes especially important.

When to See a Dentist vs. an Orthodontist

See a Dentist When You Experience:

• Tooth pain, sensitivity, or a toothache
• Bleeding or swollen gums
• A chipped, cracked, or broken tooth
• Signs of cavities or tooth decay
• Persistent bad breath
• It's time for your routine 6-month checkup and cleaning
• You need cosmetic work like whitening or veneers

See an Orthodontist When You Have:

• Crooked, crowded, or gapped teeth
• Difficulty biting or chewing
• An overbite, underbite, crossbite, or open bite
• Jaw pain or discomfort related to how your teeth meet
• Mouth breathing or speech difficulties related to jaw alignment
• A desire to improve the appearance and function of your smile
• A child who has reached age 7 (recommended first orthodontic evaluation)

An important point: you don't have to wait for a referral from a dentist to seek orthodontic treatment. If you notice alignment or bite issues on your own, you can go directly to an orthodontist for a consultation. The American Association of Orthodontists recommends that children see an orthodontist by age 7 to catch developing issues early.

How Dentists and Orthodontists Work Together

Dentists and orthodontists aren't competing professionals — they're collaborative partners in patient care. In many cases, the best outcomes come from the two working together in a coordinated approach.

Before orthodontic treatment begins, the orthodontist may require that any existing dental issues — like cavities, gum disease, or infections — are resolved first by the general dentist. During active orthodontic treatment, patients still need to continue seeing their dentist for regular cleanings and checkups, because braces and aligners can make thorough brushing and flossing more challenging.

After orthodontic treatment is complete, the dentist resumes primary care responsibility, monitoring teeth and gums to ensure everything stays healthy, while the orthodontist may continue periodic check-ins on retention and long-term stability.

This collaborative model means the patient receives short-term dental maintenance from their dentist, while the orthodontist delivers the long-term structural and functional improvements to their bite and alignment.

The Bottom Line

Both dentists and orthodontists play essential roles in keeping smiles healthy and functional. Your dentist is your front line of defence against cavities, gum disease, and everyday oral health issues. Your orthodontist is the specialist trained to correct alignment and bite problems safely and effectively.

The key takeaway is simple: see your dentist regularly for preventive care and general treatment, and consult an orthodontist when you have concerns about alignment, bite, or jaw function. The two work hand in hand — and knowing when to see each one ensures you always get the right level of care.

For dental professionals looking to offer clear aligner services in their practice, partnering with a manufacturer that provides orthodontic-level treatment planning on every case is the most reliable way to bridge the gap between general practice capabilities and specialist-quality outcomes.