Why Does My New Dental Crown Feel Too Tall or Heavy When I Bite?

It is one of the most common things patients report after a crown is fitted, and it sits in an awkward middle ground: sometimes it is nothing, and sometimes it is the single most important thing to get corrected.

Both possibilities have the same underlying explanation, which is that the teeth are extraordinarily good at detecting small differences in bite height.

The periodontal ligament suspending each tooth in its socket contains dense arrays of mechanoreceptors. Their function is to report load, and they are remarkably sensitive.

Laboratory studies of occlusal discrimination find that people can reliably detect a foil around twenty micrometres thick placed between opposing teeth — around a fifth of the thickness of a sheet of paper, and roughly a quarter the width of a human hair.

This means two things at once. First, a crown that is genuinely a few tens of microns high will be noticed immediately and unmistakably. Second, a crown that is perfectly adjusted will still feel different, because its shape, contour and surface are not identical to the tooth that was there, and the same receptors report that difference as unfamiliarity.

Distinguishing between the two is the whole task, and it can usually be done from the pattern of what you feel.

Most crowns are fitted under local anaesthetic, and this affects the bite check in two ways that are worth understanding.

The periodontal ligament receptors in the anaesthetised area are partially blocked, so your ability to judge the bite is temporarily reduced. You may genuinely not be able to tell whether it feels right in the chair.

More significantly, anaesthetic in the surrounding tissue alters how you close. The jaw muscles do not recruit normally when the area is numb, and people tend not to close fully into their habitual position. The bite the dentist checks with articulating paper may therefore not be exactly the bite you use when the anaesthetic has gone.

This is not a failing of the technique; it is an inherent limitation, and it is the main reason a crown can feel correct at the appointment and high two hours later. It is also why practices expect and plan for post-fitting adjustments rather than treating them as a complaint.

A few patterns separate the two reasonably well.

Suggests normal adaptation: a sense of bulk or presence without a clear contact hitting first; the tongue repeatedly investigating the tooth; awareness that fades when you are distracted; the feeling improving day by day; no tenderness.

Suggests a genuine high contact: you can identify the exact tooth hitting first when you close slowly; the tooth becomes tender to bite on after a day or two; you find yourself chewing on the other side; the jaw muscles on that side ache; a sensation that your back teeth on the other side are not meeting properly; or sensitivity to cold developing in that tooth.

The most reliable single test is to close very slowly and gently and notice which tooth touches first. If it is consistently the crowned one, the contact needs adjusting.

• Teeth can detect a bite difference of around twenty microns.

• Local anaesthetic makes the in-chair bite check inherently approximate.

• A contact that hits first when closing slowly needs adjusting, not adapting to.

• A high crown can cause tenderness, cold sensitivity, muscle ache and, over time, cracking.

• Adjustment is a short appointment and is normally part of the treatment.

This is the reason the distinction matters. A crown that is genuinely high does not settle; the consequences accumulate.

The immediate effect is on the periodontal ligament. A tooth taking a disproportionate share of every closure develops inflammation in its ligament, which is felt as tenderness on biting and sometimes as a tooth that feels slightly loose or elongated. Left in place, this persists.

The tooth may become sensitive to cold or develop lingering discomfort. Sustained excess load can produce inflammation within the pulp of a tooth that was previously healthy, and in a small number of cases a tooth that was vital before the crown ends up needing root canal treatment. Our article on toothache after a crown covers the causes.

The jaw muscles compensate. A single interfering contact alters the closing pattern, and the muscles on that side work differently. Muscle ache, tension around the temple and morning tightness can follow.

Over a longer period, a tooth carrying excess load is at greater risk of cracking, and porcelain on the crown itself is more likely to chip. None of this is inevitable, but all of it is avoidable, and the avoidance takes a few minutes with articulating paper.

Some people describe the sensation as weight rather than height, which is a separate and usually benign observation.

A metal-ceramic or gold crown is denser than natural tooth structure, and the tongue registers that. All-ceramic crowns are closer to natural tooth in density and tend to produce less of this feeling.

Contour also plays a part. A crown that is slightly fuller than the original tooth on the tongue side occupies space the tongue is used to having, and is interpreted as bulk. Where this persists beyond a few weeks it can usually be reduced and repolished, though it is worth being sure the contour is not doing something useful before altering it.

The process is quick and does not usually need anaesthetic, which is an advantage since it lets you judge the bite properly.

Articulating paper — thin coloured film — is placed between the teeth and you are asked to tap together, then to grind side to side and forwards. The marks show where contact is occurring and, by the density of the marking, how heavily. A high spot on a crown shows as a dark, heavily marked area while the neighbouring teeth mark lightly or not at all.

The contact is reduced with a fine polishing instrument, rechecked, and the adjusted surface repolished. Polishing matters: a roughened ceramic surface left unpolished will wear the opposing tooth. The whole process usually takes ten to fifteen minutes.

Occasionally more than one visit is needed, because reducing the first high spot reveals a second. That is normal rather than a sign of poor work. Our articles on occlusal adjustment and bite harmony and how long it takes to get used to a new crown cover the process and the timeline.

If a new crown feels high, has become tender to bite on, or has made the jaw ache, arrange an adjustment through our contact page. It is a short appointment and is much better done early.

You can read more on our dental crowns page, our root canal page, our night guards page and our TMJ treatment page.

This article is for general information only and does not constitute dental or medical advice. Bite contacts can only be assessed by clinical examination. Always consult a registered dental professional about your own treatment, and report persistent tenderness rather than waiting for it to settle.

Next review due: 30 July 2027