Teeth are designed to last a lifetime, but they are not indestructible. Tooth wear is the gradual loss of tooth structure through processes that are not related to decay, and it is far more common than most people realise. In many cases, it develops slowly over years before becoming visible or causing sensitivity.
Unlike tooth decay, which is driven by bacteria, tooth wear involves physical and chemical processes that gradually remove enamel and dentine. Understanding the different types, what drives them, and when to act matters for protecting what remains and for knowing when crown and bridge restoration or other treatment becomes necessary.
Quick Overview
- Tooth wear refers to the gradual loss of tooth structure through erosion, attrition, and abrasion, occurring separately or together
- It may affect people of any age, though it tends to accumulate over time and is often more noticeable in adults with acidic diets, grinding habits, or a history of reflux
- Left unaddressed, wear can progress to sensitivity, changes in bite, and structural damage that requires restorative treatment
- How quickly wear progresses and what treatment is appropriate depends on the type, cause, and extent of the damage
- A dental assessment is the starting point for understanding what is happening and what options are available
The sections below outline what causes tooth wear, how to recognise it, and what treatment may involve.
What Is Tooth Wear?
Tooth wear is the loss of hard tooth tissue through causes other than dental caries. It can affect the enamel, the outer protective layer of the tooth, and in more advanced cases the dentine underneath. Once enamel is lost, it cannot regenerate. The tooth’s shape, surface texture, and height can all change as wear progresses.
Wear often results from a combination of processes acting together rather than a single cause. This is why identifying the specific type matters when planning how to manage it.
The Three Main Types of Tooth Wear
Erosion
Dental erosion is the loss of tooth structure through acid. The acid can come from dietary sources, such as soft drinks, fruit juices, and citrus, or from within the body, including stomach acid from reflux or vomiting. Erosion commonly creates smooth, concave surfaces on the chewing faces of teeth and on the inner surfaces of upper front teeth.
Saliva plays a key protective role by neutralising acid and helping remineralise the enamel surface. Dry mouth or reduced salivary flow can therefore increase erosion risk. Untreated dental erosion and surface loss can progress gradually, and in advanced cases damage the tooth’s underlying structure.
Attrition
Attrition is wear caused by direct tooth-to-tooth contact. It most commonly affects the biting edges of the front teeth and the chewing surfaces of the molars, creating flat, worn facets. Bruxism, involuntary grinding or clenching of the teeth often during sleep, is a major driver of attrition. Many people are unaware they grind until wear is noticed by a dentist or until jaw soreness or chipped teeth appear.
Abrasion
Abrasion is mechanical wear caused by something other than another tooth. Brushing too firmly with a hard-bristled toothbrush, particularly with abrasive toothpaste, is the most common cause. It typically creates notched or groove-like defects at the gum line. Using teeth to hold or bite on objects can also contribute.
In practice, most cases of significant tooth wear involve more than one type. Erosion, for example, softens the enamel surface and makes it more vulnerable to attrition and abrasion simultaneously.
Signs That Tooth Wear May Be Occurring
Tooth wear does not always cause pain in its early stages, which is why it often goes unnoticed. Common signs include:
- Teeth that appear shorter, flatter, or more translucent at the edges
- Yellowing of the teeth as dentine becomes visible beneath thinning enamel
- Increased sensitivity to hot, cold, or sweet foods and drinks
- Changes in how the teeth fit together when biting
- Fillings that appear to have risen above the surrounding tooth surface
- Chipping or cracking at the edges of front teeth
Any of these changes warrants a dental assessment, even if there is no pain. Early signs of dental erosion can be subtle, but catching them before enamel loss becomes significant preserves more treatment options.
How Is Tooth Wear Treated?
Treatment depends on the severity of the wear, the underlying cause, and whether it is still progressing.
The first step is always identifying and addressing the cause. Without this, any restorative work is at risk of failing or wearing prematurely. Dietary advice, a night splint for bruxism, acid reflux management, or guidance on brushing technique may all be part of the initial approach.
For teeth where significant tooth structure has already been lost, restorative options may include composite bonding, dental veneers, or crowns. In more advanced cases where multiple teeth are affected, a full assessment of the bite is required before treatment is planned. Tooth structure that cannot be recovered without restorative care underlines why early detection matters.
Individual outcomes vary. The right treatment depends on the specific clinical findings for each patient.
When to See a Dentist About Tooth Wear
If you have noticed any of the signs described above, or if you have been told you grind your teeth, it is worth raising this at your next dental appointment.
At Beyond 32 Dental, Dr Jeff Lin and Dr Jennifer Chung take a thorough approach to assessing and monitoring tooth wear, discussing findings clearly and explaining options before any treatment is recommended.
Call Beyond 32 Dental on (02) 9158 6334 or book a consultation online.
Frequently Asked Questions
Can tooth wear be reversed?
Lost enamel and dentine cannot regenerate naturally. Once the structure is gone, it can only be replaced through restorative dental treatment such as bonding, veneers, or crowns. What can be managed is the rate of further wear by identifying and addressing the underlying cause. Early assessment gives more options and may avoid the need for more involved treatment later.
Is tooth wear the same as tooth decay?
No. Tooth decay is caused by bacteria producing acid from sugars, creating cavities. Tooth wear is the loss of tooth structure through physical or chemical processes that are not bacterial in origin. Both can cause sensitivity and damage, but their causes and management differ. A dentist will distinguish between them during an examination.
References
Better Health Channel. (n.d.). ‘Dental erosion’. Better Health Channel. Melbourne, VIC: Victorian Government Department of Health. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/dental-erosion
Healthdirect Australia. (n.d.). ‘Dental erosion’. Healthdirect Australia. Sydney, NSW: Healthdirect Australia. https://www.healthdirect.gov.au/dental-erosion
Australian Dental Association. (n.d.). ‘Tooth erosion’. teeth.org.au. Sydney, NSW: Australian Dental Association. https://www.teeth.org.au/tooth-erosion
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