The direct answer is every six to 12 months for most Australian adults, with the exact interval set by your dentist based on the condition of your teeth and gums rather than by the calendar. That is the range healthdirect gives, and it is deliberately a range. Some adults with stable mouths and no history of decay or gum disease can safely sit at the longer end. Others, including people who smoke, have diabetes, have gum disease, or have a dry mouth, need to be seen more often than every six months.
Smile Creative’s general practice recommendation is a check-up every six months, which sits within that range and is a sensible default for most people. What follows is where the six month figure came from, what the research actually found when it was tested, and how to work out where you personally sit.
Where did the “every six months” rule come from?
The six month recall is one of the most widely known pieces of health advice in the English speaking world, and it is worth knowing that it did not originate from a clinical trial. Six monthly check-ups have traditionally been advocated by general dental practitioners across many high income countries, and the convention long predates any attempt to test it.
That is not an argument against it. A six month interval is short enough that decay is usually caught while it is still small, calculus has not had years to build up, gum inflammation is picked up before it becomes established, and soft tissue changes get looked at regularly. It is a reasonable default. It is simply not a clinical law, and treating it as one has led a lot of people to believe that if they cannot manage exactly twice a year they may as well not go at all.
What does the evidence actually show?
The question has been examined in a Cochrane systematic review, which is the highest tier of evidence synthesis available in healthcare. The 2020 update, Recall intervals for oral health in primary care patients, drew on the INTERVAL Dental Recalls Trial among other studies.
The INTERVAL trial compared six monthly recall, risk based recall, and 24 monthly recall in dentate adults attending primary dental care, followed over four years. It found no evidence of a difference in oral health between those three approaches over that period.
That result is frequently misread, so it is worth being precise about what it does and does not say.
What it does say
- For adults already attending dental care and already being risk assessed by a clinician, stretching the interval beyond six months did not produce worse outcomes over four years.
- A rigid six month rule applied to everybody is not supported by the evidence as being better than a risk based approach.
- Lower risk adults do not appear to be harmed by longer intervals.
What it does not say
- It does not say that not attending is fine. Every participant in the trial was still under the care of a dentist and still being assessed. The comparison was between attendance patterns, not between attending and disengaging.
- It does not say that everyone can go to 24 months. The risk based arm existed precisely because some people need shorter intervals.
- It does not apply the same way to children and adolescents, where the evidence is much less certain.
- It does not remove the value of the soft tissue examination, which is not a decay check and is one of the reasons regular attendance matters even when the teeth are stable.
The practical conclusion the profession has drawn is not “go less often”. It is “the interval should be set by risk, and the range for most adults is six to 12 months”.
What raises your risk and shortens your interval?
A dentist setting a recall interval is weighing a set of factors. Broadly, the more of these that apply to you, the shorter the appropriate gap.
- A history of decay, particularly recent decay or several restorations placed in the last few years
- Current or previous gum disease, especially anything beyond simple gingivitis
- Smoking, which raises gum disease risk and can mask the bleeding that would otherwise flag it
- Diabetes, which has a two way relationship with gum disease
- Dry mouth, whether from medication, a medical condition or habitual mouth breathing
- Pregnancy, because hormonal changes increase gum sensitivity and bleeding
- Frequent snacking or sipping of sugary or acidic drinks across the day
- Extensive existing dental work, including crowns, bridges, implants and older fillings with margins to monitor
- Orthodontic appliances, which make cleaning harder
- Grinding or clenching, which produces wear that is easier to manage when it is monitored
- Difficulty cleaning effectively, whether from crowding, dexterity, or eyesight
What allows a longer interval?
- No decay experience in recent years
- Healthy gums with no bleeding and no history of bone loss
- A consistent daily routine that includes cleaning between the teeth
- A non smoker, with low alcohol intake
- Good saliva flow and no dry mouth
- A diet without frequent sugar or acid exposure through the day
- Few or no restorations to monitor
Even at the longer end, an annual visit is the usual floor for adults. The soft tissue examination, the check for decay between teeth that you cannot see, and the assessment of bone levels around the teeth are all things that only happen if you attend.
If I brush and floss well, can I go less often?
Good home care genuinely does lower your risk, and it is one of the factors a dentist weighs when setting your interval. It does not replace the examination, for a specific reason: the things that most often go wrong in an adult mouth are not visible to the person who owns it.
Decay between two adjacent teeth starts on a surface you cannot see and cannot feel until it is well advanced, which is why radiographs are taken at intervals. Bone loss around teeth is not visible at all without measuring the gum pockets and, where indicated, imaging. Wear from grinding is gradual enough that it is invisible day to day and obvious across years of records. Early changes in the soft tissues of the mouth are painless.
So the honest framing is that excellent home care changes how much is likely to be found, not whether the finding process is worth doing. The people who benefit most from regular examination are often the ones whose mouths feel fine.
What happens if the gap gets too long?
This is worth stating without alarm, because the consequences are different depending on what is developing.
Decay is progressive. A small area of demineralised enamel may be arrested or remineralised with a change in habits and fluoride exposure. Once it has broken through into dentine it needs a restoration. If it reaches the nerve it becomes a root canal or an extraction question rather than a filling question. The same problem, found at three different points, has three very different treatment paths.
Gum disease behaves differently. Gingivitis is inflammation of the gum tissue and can be resolved, because nothing supporting the tooth has been lost. Periodontitis involves loss of the tissue and bone that hold the tooth in place, and that lost support does not grow back on its own. Treatment aims to stop further loss rather than restore what has gone. This is the strongest argument for not letting the interval drift indefinitely, because the window in which the process is fully reversible closes quietly.
Existing dental work has a service life as well. Margins around older fillings and crowns are a common site for new decay, and decay under an existing restoration is not something you would notice at home. For anyone with a mouth full of previous work, monitoring those margins is a large part of what the recall interval is for.
Does having cosmetic or restorative work change the interval?
Generally it shortens it, or at least holds it at the shorter end of the range. Veneers, crowns, bridges and implants all have margins where the restoration meets natural tooth or gum tissue, and those junctions need attention. Veneers do not protect the underlying tooth from decay, and implants depend on the health of the gum and bone around them.
Orthodontic treatment has the same effect while it is under way. Aligner or bracket wear makes plaque control harder, and monitoring during treatment is part of the plan rather than an optional extra.
If you are considering cosmetic treatment, the sequencing question comes up early. Active decay and untreated gum disease are addressed before elective cosmetic work, which is covered in more detail in the article on the difference between general and cosmetic dentistry.
Is a clean the same as a check-up?
They usually happen at the same appointment, but they are different things and it is useful to understand why both are there.
The examination is the diagnostic part. It covers the teeth, the gums and supporting structures, the soft tissues of the mouth and throat, the bite, and existing restorations, with radiographs at intervals appropriate to your risk. It is the part that finds things.
The clean removes calculus, the hardened mineralised deposit that forms from plaque and cannot be removed by brushing once it has set. Calculus provides a rough surface that holds plaque against the gum line, which is why leaving it in place perpetuates gum inflammation.
Some people need cleans more often than they need a full examination, particularly those managing gum disease. That is a normal arrangement and worth asking about if your gums have been an issue.
What if it has been years since your last visit?
Close to half of Australian adults aged 15 and over did not see a dental professional in the previous 12 months, so a long gap is far more common than most people assume when they are sitting in the waiting room feeling like the only one.
A few things are worth saying plainly.
- The length of the gap does not change what is found. It changes only how much is found at once, and a longer gap does not mean the news will be bad.
- Nothing has to be done on the day. It is entirely reasonable to book an examination and a discussion, understand what is there, and decide on sequencing afterwards.
- You can say you are apprehensive when you book. That is useful information for the practice, not an inconvenience, and it changes how the appointment is run.
- You do not need a referral to see a dentist in Australia. You can book directly.
Smile Creative’s studio was designed around patients feeling safe and in control during their visits, and Dr Karishma Wijeyesinghe personally treats all patients, so the person you meet at the first appointment is the person who continues your care.
When should you go sooner than your scheduled recall?
A recall interval covers routine monitoring. It is not a waiting period. Contact the practice without waiting if you notice:
- Facial or gum swelling, which should be treated as urgent
- Pain that wakes you at night, or pain that lingers after the hot or cold stimulus is removed
- A tooth that has broken, chipped or become loose
- A filling, crown or veneer that has come out or feels different
- Bleeding gums that persist despite two weeks of consistent daily cleaning
- A change in how your teeth meet
- Any ulcer, white or red patch, or lump in the mouth that has not resolved within two weeks
What about children and teenagers?
The evidence on recall intervals is considerably less certain for children and adolescents than it is for adults, so the risk based flexibility that applies to a stable adult mouth should not be assumed to apply to a child. Australian guidance is that professional dental check-ups begin from around 12 months of age or when the first teeth appear. Interval decisions for children are best made with the treating clinician rather than extrapolated from adult research.
How to actually settle this for yourself
Rather than picking a number, ask three questions at your next appointment:
- “Based on what you have found today, what interval do you recommend for me, and why?”
- “What would need to change for that interval to get shorter or longer?”
- “Is there anything in my routine that would make the biggest difference?”
An interval that has been explained is one people actually keep. An interval that is simply booked at the front desk tends to be the one that quietly slips.
Booking a check-up in Ballarat
You can book an appointment online at Smile Creative, or call the studio on 03 4320 0777 if you would like to talk through what a first visit involves before booking. The practice is at 602 Mair Street, Ballarat Central.