The honest answer
Every six months is a reasonable default, not a rule. The right interval depends on your risk, and risk varies a great deal between people.
That deserves a straight explanation rather than a slogan, because the six-month convention is one of the most repeated claims in dentistry and one of the least examined.
Where "every six months" came from
Not from research. Six-monthly recall became standard through a combination of habit, insurance scheduling conventions, and mid-twentieth-century public health messaging. No study established six months as the optimal interval for everyone, and modern guidance in several countries has moved toward risk-based intervals instead.
This is not a case for going less often. For a person of average risk, six months is a sensible working default and there is nothing wrong with it. The point is that it is a starting position to be adjusted, not a fixed property of human teeth.
What shortens the interval
You may benefit from visits every three to four months if you have:
- A history of gum disease. Periodontal disease is managed rather than cured, and the interval between cleanings is one of the main tools for keeping it stable.
- Frequent decay. More than one new cavity in recent years suggests a risk profile that six-monthly checks are not keeping ahead of.
- Dry mouth, whether from medication, a medical condition, or radiotherapy. Saliva is a primary natural defence, and losing it raises decay risk sharply.
- Diabetes. The relationship with gum disease runs both ways: diabetes worsens gum disease, and gum disease makes blood glucose harder to control.
- Smoking or vaping. Both raise gum disease risk and mask the bleeding that would otherwise warn you.
- A weakened immune system.
- Ongoing orthodontic treatment, which makes cleaning harder.
- Grinding, where wear needs monitoring before it becomes fracture.
- Pregnancy, which commonly brings hormonal gum changes worth watching.
What lengthens it
Some adults can reasonably go nine to twelve months: healthy gums with no history of periodontal disease, no recent decay, consistent home care, no medical complications, no smoking, and a diet without frequent sugar or acid exposure.
The catch is that most people cannot assess their own risk, because early decay and early gum disease are both painless and largely invisible in a mirror. If you want a longer interval, it is worth asking for rather than assuming — and the answer may genuinely be yes.
Children
The first visit should be by the first birthday, or within six months of the first tooth appearing.
That surprises many parents, and the first visit is not what they expect: it is mostly about checking development, discussing feeding and brushing, and making the dental chair an ordinary place rather than a frightening one. Establishing that early is worth more than anything clinical that happens at the appointment.
After that, six months is typical, adjusted by risk. Children generally need closer monitoring than adults because decay moves faster through the thinner enamel of baby teeth, and because a child who is comfortable at the dentist tends to become an adult who goes.
If it has been years
This is worth addressing directly, because it is one of the most common reasons people do not book.
Long gaps are ordinary. Practices see them constantly, and there is no lecture waiting — most people who have avoided the dentist did so for perfectly understandable reasons: cost, a bad experience elsewhere, anxiety, or simply life.
What to expect from a first visit back: a longer appointment, a full examination, X-rays to see what is happening below the surface, and an honest account of what was found — separated into what needs attention now and what can be monitored. Treatment can almost always be staged by priority rather than done at once.
Say on the phone that it has been a while. It changes how much time we book and how the appointment is run. Our new patients page covers what a first visit involves, and if anxiety is the barrier, dental anxiety is written for exactly that.
Why go when nothing hurts
This is the crux of it.
Tooth decay and gum disease are painless in their early stages. By the time a tooth hurts, the problem is usually well advanced — decay has reached the nerve, or bone has already been lost around a tooth. Pain is a late signal, not an early one.
A check-up exists to find things while they are small: decay that needs a filling rather than a root canal, gum inflammation that reverses with a cleaning rather than periodontal treatment, a crack that can be crowned before it splits. It also includes an oral cancer screening, which most patients do not realise is part of a routine exam and which depends entirely on regular looking.
Waiting for symptoms means only ever treating advanced problems, at greater cost and with worse outcomes. That is the whole argument, and it does not require exaggeration.
What a check-up involves
- Comprehensive examination — teeth, gums, bite, and soft tissues, including oral cancer screening
- X-rays where clinically indicated, typically less frequently than the exam itself
- Cleaning — removing plaque and the hardened tartar that brushing cannot shift
- Findings in plain language, split into what needs doing now and what can be watched
Anything with a cost attached should be put in writing before you agree to it. See general dentistry for what routine care covers here.
Setting your interval
Ask at your next visit: given my history, how often should I be coming? A dentist should be able to answer with reasons rather than a default, and should revisit it as circumstances change — new medication, a diagnosis, pregnancy, or a period of more frequent decay all shift the calculation.
If your gums bleed when you brush, do not wait for the next scheduled visit. That is worth acting on now: see bleeding gums.
If you are looking for a practice in Richmond Hill, we are accepting new patients, including patients who have not been to a dentist in a long time.