Most people attend the dentist to have their teeth checked — but every routine dental check-up also includes something far more significant: a systematic screen for oral cancer. This part of the examination takes only a couple of minutes, requires no specialist equipment, and costs nothing extra, yet it has the potential to save lives.
Oral cancer is not the rarest of cancers, and its incidence has been rising in the UK over the past two decades. The encouraging fact is that when detected early — and dentists are often the first clinicians to spot the signs — the survival rate is dramatically higher than for cancers diagnosed at a later stage. Understanding what your dentist is looking for, and why this matters, is well worth a few minutes of your time.
What Is Oral Cancer?
Oral cancer refers to cancers that develop in any part of the mouth or the oropharynx (the back of the throat). This includes the lips, tongue, floor of the mouth, roof of the mouth (hard and soft palate), the inside lining of the cheeks, and the gums. The most common type is squamous cell carcinoma, which arises from the flat cells lining the mouth and throat.
According to NHS guidance on mouth cancer, around 8,300 people in the UK are diagnosed each year, and the condition is more than twice as common in men as in women. Crucially, approximately two-thirds of cases are diagnosed at a late stage — largely because early symptoms are often painless and easily dismissed.
Why Dentists Are Well Placed to Detect Oral Cancer
Your dentist has a detailed knowledge of what healthy oral tissues look and feel like. Because they examine your mouth regularly and record findings over time, they are ideally placed to notice changes that you might not be aware of — and which your GP may never see. Many oral cancers begin as subtle changes in the colour, texture, or surface of the lining of the mouth, long before they cause pain or obvious swelling.
This is why regular attendance matters. A dentist who sees you every 12 months has the opportunity to spot a change that has developed since your last visit. Someone who has not attended for several years is relying on a much smaller window of opportunity.
What Does an Oral Cancer Screen Involve?
The screening that takes place during a routine check-up is a visual and physical examination of the soft tissues of the mouth. Your dentist will typically:
- Examine the lips, both inside and outside
- Check the tongue — top, underside, and sides
- Examine the floor of the mouth
- Inspect the roof of the mouth (hard and soft palate)
- Look at the inside of the cheeks
- Check the gums and the back of the throat
- Feel the lymph nodes in the neck and under the jaw
The whole process is quick and non-invasive. You may be asked to stick out your tongue, move it to one side, and lift it so the underside can be properly examined. If anything unusual is found, your dentist will discuss it with you and advise on the appropriate next step — which may be a watch-and-wait approach, a referral for further investigation, or simply monitoring at your next visit.
Signs and Symptoms to Watch for Between Appointments
While your dentist will screen for oral cancer at each check-up, you should also be aware of symptoms that warrant prompt attention between visits. These include:
- A mouth ulcer that has not healed after three weeks
- A persistent red or white patch inside the mouth
- Unexplained lumps or thickening of the tissues
- Difficulty swallowing or a persistent feeling of something stuck in the throat
- Unexplained numbness in the mouth or lips
- A hoarse voice that has persisted for more than three weeks
- Unexplained tooth loosening without obvious gum disease
None of these symptoms necessarily means cancer — most have entirely benign explanations. But any symptom that persists should be assessed by a dentist or doctor without delay. Early investigation is always the right approach.
Risk Factors for Oral Cancer
Understanding your personal risk level can help you take appropriate steps to reduce it. The key risk factors for oral cancer in the UK are well established:
| Risk Factor | Level of Risk | Notes |
|---|---|---|
| Tobacco use (smoking or chewing) | High | The single largest risk factor; risk increases with duration and quantity |
| Heavy alcohol consumption | High | Combined with tobacco, risk is significantly multiplied |
| HPV infection (particularly HPV-16) | High (oropharynx) | Increasing driver of oropharyngeal cancers in younger patients |
| Sun exposure (lip cancer) | Moderate | Relevant particularly for outdoor workers |
| Poor diet (low in fruit and vegetables) | Moderate | Antioxidants in fresh produce appear protective |
| Age over 40 | Moderate | Risk increases with age, though HPV-related cases appear in younger adults |
How Early Detection Changes Outcomes
The survival statistics for oral cancer demonstrate clearly why early detection is so important. When oral cancer is diagnosed at Stage 1 or Stage 2 — while still localised — the five-year survival rate can be as high as 80 to 90 percent for some locations. By the time the disease has spread to the lymph nodes or beyond, that figure falls significantly, often below 50 percent.
These are not abstract statistics. They represent real differences in treatment intensity, quality of life, and outlook. Catching a small lesion during a routine check-up, before it has become invasive, is precisely the kind of outcome that preventive dentistry is designed to achieve.
What Happens If Something Is Found?
Finding something unusual during a dental examination does not mean the news is bad. The vast majority of lesions, patches, and ulcers in the mouth are entirely benign. Your dentist will use their clinical judgement to determine the most appropriate response.
In many cases, a short period of monitoring is recommended — many benign ulcers resolve on their own within two to three weeks. Where a lesion is persistent, unusual in appearance, or causing concern, a referral to an oral medicine specialist or maxillofacial surgeon will be arranged. Urgent referrals are made when there is genuine cause for concern, and the NHS two-week wait pathway ensures prompt access to specialist assessment.
Reducing Your Risk
While you cannot eliminate all risk factors — age, for example, is not something any of us can change — there are meaningful steps you can take to reduce your overall risk of oral cancer:
- Do not smoke or use tobacco in any form. If you currently smoke, ask your dentist or GP about cessation support — NHS Scotland offers excellent free resources.
- Keep alcohol intake within recommended limits (no more than 14 units per week).
- Eat a diet rich in fruits and vegetables, which provide antioxidants that may help protect cell DNA.
- Use a lip balm with SPF protection when outdoors, particularly in summer.
- Attend your dental check-up regularly so that any changes can be monitored over time.
The Value of Regular Attendance
Oral cancer screening is one of several reasons why regular dental attendance is about far more than clean teeth. At every check-up, your dentist is carrying out a comprehensive assessment of your oral health — including your risk of cancer, gum disease, tooth decay, and other conditions. Viewing the check-up as a health screen rather than simply a cosmetic exercise helps explain why regular attendance matters so much.
At Tarbert Dental Surgery, we carry out a thorough oral cancer screen as part of every routine check-up. Our aim is to catch any changes early, give you clear information, and support you in maintaining excellent oral health for life. If you have not attended recently, or if you have noticed any changes in your mouth that concern you, please do not hesitate to get in touch. Call us on 01880 820387 and we will arrange an appointment as soon as possible.