My teeth look short and worn — what needs checking before they are fixed?

Why the cause comes first

Some slow wear is a normal part of aging, but teeth that look noticeably short have lost enamel, and then dentin, faster than that. Something has been removing tooth structure for years: the teeth grinding against each other, acid softening the surface, something rubbing the teeth, or a mix of these. A crown, veneer or bonded build-up placed into that same environment meets the same forces, so new work on worn teeth tends to chip, wear or come loose unless the cause is identified and controlled first. That is why a careful consultation for short, worn teeth starts with questions and measurements rather than with a treatment plan.

A second reason to slow down is that worn teeth often still work. European consensus guidance on severe tooth wear recommends diagnosing the cause, counseling and monitoring first, and delaying restorative treatment as long as reasonably possible; when restoration is needed and the patient wants it, a conservative, minimally invasive adhesive approach is preferred. Appearance is a legitimate reason to treat, but it is weighed against how much healthy tooth would have to be removed to do so.

The three kinds of wear and what they look like

Dentists describe tooth wear by mechanism. The labels matter because each points to a different fix.

Attrition: tooth against tooth

Attrition is the loss of enamel, dentin or filling material from teeth contacting each other, most often from clenching or grinding (bruxism). Typical signs are worn, flattened spots along the edges that match up when you close, chipped or cracked edges, and front teeth that look shorter and squarer than they used to. Grinding often happens during sleep without the person knowing; a partner may hear it. Jaw muscle soreness on waking, dull headaches and tooth sensitivity can go with it. Stress is often involved, and sleep disorders and teeth that do not line up well are also listed among possible causes.

Erosion: acid, not bacteria

Erosion is the chemical loss of tooth structure from acid that does not involve bacteria, so it is not decay. The acid can come from outside the body, mainly from acidic drinks such as soda and sports drinks, including sugar-free versions, and from frequent citrus and other acidic foods; or from inside the body, as stomach acid from reflux or repeated vomiting. Eroded teeth tend to look smooth and slightly yellow as the dentin shows through, and they are often sensitive to hot, cold or sweet. People with gastroesophageal reflux disease are more likely to show erosive wear than people without it, although the research on this is mixed in quality, so the dentist will ask about heartburn, reflux medicines and digestive symptoms even if the teeth are the only complaint.

Abrasion: something rubbing the teeth

Abrasion is wear from something other than another tooth: a hard toothbrush used with force, an abrasive toothpaste, or habits such as chewing on pens, nails or ice. Toothbrushing is a common cause, and it tends to show as grooves near the gum line rather than as shortened edges.

Why it is often a mix

In many people the mechanisms overlap. Acid softens enamel and dentin, and softened tooth structure is then removed far more easily by brushing or grinding. That is why a plan that addresses only one cause, such as a night guard for someone whose main problem is acidic drinks sipped through the day, often disappoints.

What the examination should cover

The teeth themselves

• Pattern of wear. Which teeth are worn, where on each tooth, and whether the pattern fits grinding, acid, rubbing or a combination.
• How far it has gone. Whether wear is still within enamel or has reached the dentin underneath, where sensitivity is more likely.
• The nerve. Each tooth's nerve is checked, usually with simple tests and X-rays. A tooth that aches on its own, throbs, or hurts when you bite may have an infected nerve that needs treatment before anything is built on it.
• Existing fillings and crowns, which may have worn down along with the teeth and need to be checked.

The bite and the jaw joints

Teeth that have worn slowly over years usually still meet when you close. That means there is often little or no room to add material back without changing how the teeth come together, and the dentist has to decide where that room will come from. The bite assessment records how your teeth meet, how the jaw moves, and whether the chewing muscles and jaw joints are tender, clicking or limited. If jaw pain or joint symptoms are present, guidance from the National Institute of Dental and Craniofacial Research favors conservative, reversible care and advises against treatments that irreversibly change the jaw joints, teeth or bite as a way of treating jaw joint disorders. Rebuilding worn teeth is a treatment for worn teeth, not a treatment for jaw pain, and the two should be discussed separately.

Questions about sleep, reflux and habits

Expect questions you may not associate with teeth. Do you snore, wake unrefreshed or feel sleepy in the day? Has anyone noticed pauses in your breathing during sleep? Do you have heartburn, reflux or frequent indigestion? What do you drink through the day, and how? How hard do you brush? Sleep grinding is reported more often in people with obstructive sleep apnea, although whether one causes the other is not settled, so positive answers may lead to a suggestion that you see your physician or a sleep specialist for evaluation. A dentist can raise the question; diagnosing a sleep or digestive condition is a medical matter.

Records: photos, scans or models

Photographs and a digital scan or a set of models capture the shape of your teeth today. They are the baseline for monitoring: if wear is not progressing once the cause is controlled, that supports waiting; if the next set shows continued loss, that supports treating. They are also what the dentist uses to design any rebuild and to test a new bite before committing to it.

The options, from least to most

Monitoring and protection

Often the first step is to control the cause and watch: cutting acid exposure and changing how acidic drinks are consumed, changing brushing technique, having reflux assessed by your physician, managing stress, and wearing a night guard if grinding is present. A night guard shields the tooth surfaces from grinding forces; it does not by itself stop the grinding, and some people find that symptoms return when they stop wearing it. Loul Dental Studio lists occlusal guards (the clinical term for night guards) and sleep- and jaw-joint-related (TMJ) care among its services; ask the office what the guard process involves.

Bonding and adhesive build-ups

When shortened teeth need length back, bonding tooth-colored composite to the worn edges and surfaces can restore shape while removing little or no healthy tooth. It is the approach European guidance favors when restoration becomes necessary. Bonded material can chip and wears over time, so it needs checking and occasional repair, and it holds up best once the cause is controlled. For front teeth, the choice between bonding and veneers is covered in Veneers, bonding or whitening.

Crowns, onlays and full rehabilitation

More extensive wear, broken-down back teeth or a bite that has collapsed may call for onlays or overlays (partial coverings bonded over the worn part of a back tooth) or crowns on many teeth, sometimes with a change in bite height, which is what a full-mouth reconstruction involves. When the bite height has to be increased to make space, the available research suggests that, when it is indicated, this is generally safe and well tolerated, with fixed restorations adapting best; temporary symptoms such as muscle tiredness can occur and tend to settle. The evidence base is weak, however, and some of the published reports on rebuilding severely worn mouths are single case reports, which show that a result is possible rather than how often it lasts.

How the stages are sequenced

A reconstruction for worn teeth is rarely one appointment and one decision. The usual order is: find the cause; control it; protect and monitor; if restoration is still needed, test the new tooth length and bite with temporary or reversible materials; then make the definitive restorations; then maintain them, usually with a night guard. Each stage answers a question that the next depends on, which is why skipping straight to definitive crowns is where plans tend to go wrong. The printable sequencing map that accompanies this guide sets out the stages and the questions to ask at each.

If a worn tooth becomes painful or breaks while you are deciding, do not wait for the planned rehabilitation to deal with it. Facial swelling with fever, spreading swelling, any difficulty breathing or swallowing, bleeding that will not stop, or a severe injury to the face or jaw is a medical emergency: call 911 or go to the nearest emergency department first; see Facial swelling with tooth pain.

What this practice does and does not claim

Loul Dental Studio's website lists bite assessment and digital scanning at check-ups, occlusal guards, biomimetic restorations such as inlays, onlays and overlays, and full-mouth reconstruction among its services. No one can promise that rebuilt teeth will not wear again, and the practice does not claim that treating worn teeth cures grinding, reflux or sleep problems. What the examination determines is which cause or causes are at work in your mouth, how much tooth has been lost, and whether rebuilding now, later or not at all serves you best.

The next step

Book a consultation and bring any earlier photographs, X-rays or models of your teeth, a list of your medications, and notes on reflux, sleep and what you drink. Ask for the findings in writing, tooth by tooth, with the proposed sequence, and compare it against any other opinion using How to compare dental treatment quotes. If you are new to the practice, what to bring to a first visit covers the basics.