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What damages teeth and how can you reduce the risks?

Originally published

Teeth can be damaged in different ways. Decay, acid erosion and grinding are not the same process, and each needs an appropriate response. Good daily care helps, but some risks involve your health, medicines or bite and need professional advice.

A dental check can identify problems before they become painful. It also gives you a chance to discuss sensitivity, wear or changes in your mouth rather than assuming every symptom needs a filling.

Plaque, sugar and tooth decay

Plaque is a film of bacteria on teeth. Bacteria use sugars and produce acids that can lead to decay. Frequent sugary snacks or drinks give teeth repeated exposure, so consider how often you have them as well as the amount.

Brush twice daily with fluoride toothpaste, spit without rinsing and clean between your teeth. Plaque that hardens into tartar needs professional removal; it is not simply trapped food and cannot be brushed away once hardened. Your mouth naturally contains bacteria, so trying to sterilise it is neither the aim nor a realistic result of cleaning.

A clinician wearing a mask and gloves and holding a dental instrument

Acid erosion is different

Acidic drinks and foods can wear away tooth enamel directly, without bacteria causing the acid attack. Sugar-free fizzy drinks can still be acidic. Reflux or repeated vomiting can also expose teeth to stomach acid and should be discussed with a healthcare professional.

Keep acidic drinks to mealtimes rather than sipping them over long periods. Avoid holding or swishing them around your teeth. After an acidic drink or vomiting, rinse with water rather than scrubbing your teeth immediately. Ask your dental team about a brushing routine if acid exposure is frequent. There is no need to remove all fruit from a balanced diet.

Sensitivity or a change in tooth shape may have several causes. A dentist can assess whether wear is occurring and what might be contributing to it.

Grinding, clenching and habits

Grinding or clenching can contribute to tooth wear, fractures and jaw discomfort. Stress may be associated with these habits, but it is not the only possible factor. A dentist can assess the teeth and discuss protection or other support where appropriate.

An uneven bite does not automatically mean that braces are essential. Whether orthodontic treatment is useful depends on the problem and the proposed benefit. Avoid biting nails, chewing hard objects or using teeth to open packaging, as these habits can damage teeth and restorations.

A woman biting a fingernail

Illness, a dry mouth and medicines

A common cold does not automatically damage your teeth because your immune system is busy. Illness can, however, change eating, drinking and cleaning habits. Dehydration, mouth breathing and some medicines can leave the mouth dry, reducing saliva’s protective effect.

Keep up gentle oral care and drink water if you can. Seek advice for a persistent dry mouth. Diabetes is also relevant to gum health, so tell your dental team about it and work with your healthcare team on its management.

Some medicines can affect developing teeth or cause other oral side effects. This is not a reason to refuse an antibiotic or stop prescribed treatment. The risks depend on the medicine and the individual situation. Discuss concerns with the prescriber or pharmacist, and tell your dentist what you take. Children should receive medicines according to professional advice, not a blanket rule copied from a dental article.

A clinician adjusting a dental lamp

When to seek advice

Book a dental appointment for persistent sensitivity, a chipped tooth, bleeding gums or a change in your bite. Pain or swelling needs prompt advice; severe swelling affecting breathing or swallowing requires emergency help through 999 or A&E.

Routine check-up intervals should reflect your needs. Early assessment may make treatment simpler, but it cannot guarantee that a filling will always avoid root canal treatment or tooth loss. Contact us to discuss a concern or arrange a review.

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