The short answer: an interval based on your risk
There is no single frequency that suits everyone. For many adults, a check-up once or twice a year is appropriate. But someone who often gets decay, has gum disease or has implants may need to be seen every few months, while an adult with no problems for years may be able to space visits out further. The right interval is set with your dentist based on your risk profile, and reviewed at every visit.
The key idea is this: a check-up is there to catch early what does not hurt yet. Early decay, a gum that is starting to pull away from a tooth or a lesion in the lining of the mouth are much easier to treat when they are found before symptoms appear.
Where does the six-month rule come from?
The six-monthly appointment is mainly a habit that became popular in the twentieth century rather than a scientific conclusion. Reviews of the evidence, including those by the Cochrane collaboration, have not found strong proof that a fixed six-month interval is better for everyone than a schedule tailored to each person.
Several authorities have therefore adopted a personalised approach. In the United Kingdom, NICE recommends setting the interval according to each person's risk: for adults it can range from a few months to two years when the mouth is healthy and stable; for children and teenagers it does not exceed one year, because their teeth change quickly.
This principle has two practical consequences:
- a low-risk patient does not need frequent visits;
- a high-risk patient should not settle for a yearly check-up "on principle".
In both cases, it is the examination that guides the decision, not the calendar.
What a proper check-up includes
A full check-up is not just "looking for cavities". It usually includes:
- updating your medical history: new medicines, pregnancy, diabetes, bone treatments, heart problems;
- examining each tooth and existing restorations: fillings, crowns, opening margins, cracks;
- assessing the gums: bleeding, pockets measured with a fine probe, recession, mobility;
- examining the soft tissues: tongue, floor of the mouth, cheeks, palate and lips, looking for lesions that do not heal;
- bite and wear: signs of grinding, the jaw joint;
- any dentures or implants: stability and the condition of the surrounding tissues;
- a hygiene review, with targeted advice on the areas that get missed.
If tartar or staining is present, a scale and clean can be done at the same visit or booked separately. Our article on scaling and air polishing describes the cleaning techniques. At the end, you should know clearly what is fine, what needs watching and what needs treatment.
What is your risk profile?
Your dentist estimates your risk from several factors. Some point towards more frequent visits:
- recent decay or many fillings;
- frequent snacking or sugary drinks;
- dry mouth, often caused by medicines;
- a history of gum disease, even if treated;
- smoking;
- diabetes, especially if poorly controlled;
- implants, bridges or many crowns;
- orthodontic appliances or a bonded retainer;
- pregnancy, cancer treatment, or a disability that makes brushing difficult.
On the other hand, no decay for several years, healthy gums, good hygiene and no general health factors often allow check-ups to be spaced out.
This profile is not fixed: it changes with age, a new medicine, pregnancy or stopping smoking. That is why the interval is discussed again at each visit.
Risk is also not the same for decay and for gums: you can have very little decay but fragile gums, or the opposite. Your dentist therefore assesses each area separately, which explains why a patient with no decay may still be offered more frequent gum maintenance visits.
X-rays: only when they are justified
An X-ray is not automatic at every check-up. The principle applied in radiation protection is justification: an image is taken only if it provides information useful for a decision. Our article on dental X-rays explains doses and precautions.
In practice:
- bitewing X-rays show decay between the teeth that cannot be seen by eye; how often they are taken depends on your decay risk;
- a panoramic X-ray gives an overview of both jaws; it is useful at a first full assessment, for wisdom teeth, before implant treatment or when there are symptoms, but it is not repeated without reason;
- small targeted images document a painful tooth or root canal treatment.
If you have recent X-rays taken elsewhere, bring them: they can sometimes avoid repeating an examination.
The right interval for your age and situation
Some stages of life call for particular attention:
- Children: a first visit as soon as the first teeth appear, then regular follow-up during growth, with intervals that generally do not exceed a year.
- Teenagers: a higher-risk period (snacking, drinks, braces), when check-ups also allow wisdom teeth to be monitored.
- Pregnancy: gums become more sensitive; a check-up during pregnancy is recommended, ideally in the second trimester for planned treatment.
- Patients treated for periodontitis: regular maintenance, often every few months, is what keeps the result stable.
- Implant wearers: follow-up allows early detection of inflammation around the implant.
- Over 60: root decay, dry mouth from medicines and denture adjustments justify regular follow-up.
- People with no natural teeth: even with a complete denture, a check-up verifies the fit and the condition of the soft tissues.
When to come in without waiting for your next check-up
A follow-up appointment does not replace a consultation when something changes. Contact the practice if you notice:
- pain that persists or wakes you at night;
- swelling of the gum or cheek;
- gums that bleed regularly;
- a loose tooth or a denture that no longer stays in place;
- a sore, patch or lump in the mouth that has not healed within two weeks;
- a broken tooth or a lost filling.
To get the most out of the appointment, write down your questions, bring a list of your medicines and any previous X-rays, mention any sensitivity even if mild, and ask at the end which interval is recommended for you and why. Between visits, your daily routine does most of the work: brushing with fluoride toothpaste twice a day and cleaning between the teeth.
At German Dental Clinic in Agdal, a check-up includes a full examination, digital radiography when justified, and a follow-up interval explained according to your situation. If you are in Rabat and your last check-up was some time ago, you can book an appointment.
Frequently asked questions
Nothing hurts, so why have a check-up?
Because most dental problems are painless at first. Decay between two teeth, periodontitis or an infection at a root tip can develop for a long time without symptoms. By the time pain appears, treatment is often more involved. A check-up makes it possible to act while treatment is still simple.
Are the check-up and the scale and clean done on the same day?
Often, yes, when the cleaning needed is straightforward. If the examination shows a lot of tartar below the gum or gum disease, cleaning may be spread over several sessions, with local anaesthesia if needed. Your dentist will explain the plan after the examination.
Do I need an X-ray at every check-up?
No. An X-ray is taken only when it can change a decision: suspected decay between teeth, a painful tooth, a first assessment or implant planning. How often depends on your risk. If you have recent X-rays from elsewhere, bring them to your appointment.
I wear a full denture: do I still need to see a dentist?
Yes. Over time, the bone and gum under the denture change, which can make it unstable and cause sore spots. A check-up verifies the fit, allows relining to be suggested if needed and includes an examination of the soft tissues, including the tongue and palate, to spot any abnormal lesion.
How often should I take my child to the dentist?
It depends on your child's decay risk and how their teeth are developing. Guidelines generally set an interval of no more than a year, shorter if decay has already appeared. The dentist also checks the eruption of the permanent teeth and may suggest preventive measures such as fissure sealants.
The information on this page is general. Only a consultation allows a diagnosis and a suitable treatment plan.
A question about your own situation?
Dr Fenjero Walid sees patients in Agdal, Rabat, for an assessment and answers that fit your case.
