What Should You Avoid Doing With a New Crown?

Introduction

Having a dental crown fitted is a significant step in restoring a damaged, weakened, or heavily restored tooth. Many patients feel relieved once the procedure is complete — but it is entirely natural to have questions about what happens next. One of the most common searches following crown placement is: what should you avoid doing with a new crown?

The days and weeks after receiving a dental crown are important. Your crown needs time to settle, the surrounding gum tissue needs to heal, and certain habits or foods can potentially compromise its fit, longevity, or the health of the underlying tooth. Understanding what to avoid can help protect your investment in your oral health and reduce the likelihood of complications.

This article explains the key precautions to take after receiving a new dental crown, outlines the clinical reasons behind each, and helps you understand when it may be appropriate to contact your dental team for further guidance.

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What should you avoid doing with a new crown?

After receiving a new dental crown, you should avoid eating hard, sticky, or chewy foods — particularly in the first 24–48 hours. You should also avoid chewing on the crowned side whilst sensitivity settles, neglecting oral hygiene around the crown margin, and grinding your teeth without a protective night guard. These precautions help protect your new crown and support long-term success.

Understanding Dental Crowns: A Brief Background

A dental crown is a tooth-shaped restoration that is placed over a natural tooth or a dental implant to restore its shape, strength, and appearance. Crowns are commonly used when a tooth has been significantly damaged by decay, has undergone root canal treatment, is cracked, or has become structurally compromised.

Crowns can be made from a variety of materials including porcelain, ceramic, zirconia, metal alloys, or a combination of materials. Each type has specific properties relating to durability, aesthetics, and bite function.

Once a crown has been cemented into place, it is secured using dental adhesive or cement. Permanent crowns are designed to feel and function like a natural tooth over time. However, in the initial period following placement — and indeed throughout the crown's lifespan — certain behaviours and habits can affect how well the crown performs and how long it lasts.

Understanding what a crown is and how it functions helps patients make informed decisions about their aftercare. If you would like to learn more about what crown placement involves, our dental crowns service page provides further information on the process.

What Should You Avoid Doing With a New Crown? Key Precautions Explained

Avoid Hard, Crunchy, or Tough Foods — Especially Initially

One of the most important things to avoid after receiving a new dental crown is placing excessive force on it through your diet. Hard foods such as boiled sweets, ice, crusty bread, and raw carrots can exert high biting forces that may crack or dislodge a crown — particularly in the first 24 to 48 hours when the dental cement is fully curing.

Even after the settling period, it is wise to be mindful of habitually biting very hard foods directly on a crowned tooth. Whilst crowns are durable restorations, no artificial material is entirely indestructible, and repeated high-impact biting can shorten the lifespan of even a well-made crown.

Patients with porcelain or ceramic crowns should be especially cautious, as these materials — whilst aesthetically excellent — can be more susceptible to fracture under extreme force compared to metal-based options. Your dentist will advise you on the specific properties of your crown material.

Avoid Sticky and Chewy Foods

Sticky foods such as toffees, chewing gum, dried fruit, and certain breads can adhere to a crown and, in some cases, pull at the restoration. Whilst a properly cemented permanent crown is unlikely to be dislodged by occasional contact with sticky foods, repeatedly placing this type of stress on the crown can weaken the cement seal over time.

If you have had a temporary crown placed whilst your permanent restoration is being fabricated in a dental laboratory, it is particularly important to avoid sticky and chewy foods. Temporary crowns are held in place with a softer, short-term cement that is intentionally easier to remove — meaning they are more vulnerable to displacement.

If a temporary crown does become loose or falls out, contact your dental team promptly. A tooth left without a temporary crown can shift slightly, making it more difficult for the permanent crown to be fitted accurately.

Avoid Chewing on the Crowned Side If Sensitivity Is Present

It is common to experience some sensitivity around a newly crowned tooth, particularly to temperature changes or pressure. This is usually a normal part of the healing process as the gum tissue settles and the tooth adjusts to the new restoration.

During this initial period, it is advisable to chew on the opposite side of your mouth where possible. This reduces the stress placed on the crowned tooth whilst any minor sensitivity resolves.

If sensitivity is significant, prolonged beyond a few weeks, or accompanied by other symptoms such as persistent pain, swelling, or difficulty biting, it is important to contact your dentist. In some cases, further assessment may be needed to ensure the crown fit is correct or to rule out any underlying issues with the tooth.

Avoid Neglecting Oral Hygiene Around the Crown

A common misconception is that a crowned tooth no longer requires the same level of oral hygiene attention as natural teeth. This is not the case. Whilst the crown itself cannot develop decay, the natural tooth structure underneath the crown — and the gum tissue surrounding it — remain vulnerable.

Plaque and bacteria can accumulate at the margin where the crown meets the gum line. If this area is not cleaned effectively, decay can develop at the crown margin, and gum disease can progress around the tooth. Both of these issues can compromise the longevity of the crown and the health of the underlying tooth.

You should continue to brush the crowned tooth twice daily using fluoride toothpaste and clean between the teeth with interdental brushes or floss. Take care to clean gently around the gum margin of the crown. Your dental hygienist can provide personalised guidance on technique. Learn more about maintaining good gum health through our hygiene and prevention treatments.

Avoid Grinding or Clenching Your Teeth

Bruxism — the habit of grinding or clenching teeth, often during sleep — is one of the more significant threats to the longevity of dental crowns. The excessive forces generated by grinding can crack or fracture crowns, wear down the biting surface, and disturb the crown's cement seal.

If you are known to grind your teeth, it is important to discuss this with your dentist before and after crown placement. A custom-made occlusal splint (night guard) may be recommended to protect both the crown and any opposing teeth from the effects of bruxism.

Even if you are not aware of grinding, your dentist may notice signs during examination and recommend a protective appliance. Wearing a night guard as advised can help protect your crown and support its longevity.

Avoid Using Your Teeth as Tools

Using your teeth to open packaging, tear sellotape, bite nails, or hold objects places unintended lateral forces on your teeth — including crowned teeth. These types of actions are generally discouraged for all teeth, but they carry a particular risk of cracking or chipping a crown.

Developing an awareness of these habits and consciously avoiding them can contribute meaningfully to the long-term success of your dental restoration.

The Clinical Science Behind Crown Sensitivity and Healing

Understanding why some sensitivity occurs after crown placement can help patients feel reassured during the adjustment period.

When a tooth is prepared for a crown, the dentist removes a small amount of enamel and dentine from around the tooth to create space for the crown to sit correctly. The dentine layer of the tooth contains microscopic tubules that connect to the dental pulp — the living tissue at the centre of the tooth. Preparation of the tooth can temporarily increase sensitivity through these tubules, particularly to temperature.

Additionally, the gum tissue around the tooth may be slightly irritated following impressions or the fitting procedure itself. This can cause localised tenderness for a few days.

In most cases, sensitivity settles naturally as the tooth adapts and the gum heals. Fluoride toothpaste formulated for sensitive teeth can help manage mild symptoms during this period.

If sensitivity persists beyond a few weeks or intensifies, it is worth having the crowned tooth reviewed. Rarely, the dental pulp can become inflamed or infected as a result of the underlying reason the crown was required — for example, extensive prior decay. In these cases, further treatment may be needed, and your dental team will advise you accordingly.

When Professional Dental Assessment May Be Appropriate

Whilst some post-placement sensitivity and initial adjustment is expected, there are certain situations where it is advisable to contact your dental practice for an assessment.

Consider seeking professional review if you experience:

Persistent or worsening pain — discomfort that does not improve after the first week or becomes more pronounced over time
Significant sensitivity to bite — if the crown feels noticeably high when you close your teeth together, this may indicate the bite needs minor adjustment
Swelling or redness around the gum — this could indicate localised gum irritation or, in some cases, infection
A loose or rocking sensation — if the crown feels unstable, cement may have washed out or the crown may need re-evaluation
A visible crack or chip — porcelain crowns can occasionally chip; this should be assessed to determine whether repair or replacement is needed
The crown comes out entirely — if this occurs, store the crown safely and contact your dental team promptly

These are general educational indicators only. Only a qualified dental professional examining your specific situation can determine the appropriate next step. Dental symptoms and treatment options should always be assessed individually during a clinical examination.

Prevention and Long-Term Crown Care

Protecting your crown over the long term involves consistent habits that support overall oral health.

Practical steps to help maintain your crown:

Brush twice daily using fluoride toothpaste, paying particular attention to the gum margin around the crown
Clean between teeth daily using floss or interdental brushes — this is especially important at the crown margin to prevent marginal decay
Attend regular dental check-ups so your dentist can monitor the crown and surrounding tissues at recommended intervals
Attend regular hygiene appointments to remove any calculus build-up around the crown margin that home brushing cannot address
Wear a night guard if advised to manage the effects of grinding or clenching
Maintain a balanced diet and limit sugary foods and drinks to protect the margin of the tooth where it meets the crown
Avoid smoking — smoking impairs gum health and healing, and can affect the tissues supporting crowned teeth

A crown that is well maintained may last for many years, though longevity varies depending on individual clinical factors. Regular professional review allows your dental team to identify any changes or wear before they develop into more complex issues. Explore our general and restorative dental services to learn how routine dental care supports the longevity of your restorations.

Key Points to Remember

Avoid hard, sticky, or chewy foods — particularly in the first 24–48 hours after crown placement, and be mindful of these ongoing
Do not neglect oral hygiene — clean carefully around the crown margin to prevent gum disease and marginal decay
Protect against grinding — if you grind your teeth, discuss a night guard with your dentist to safeguard your crown
Expect some initial sensitivity — mild sensitivity is normal after crown placement, but it should settle within a few weeks
Contact your dentist if symptoms persist — any prolonged pain, swelling, loose sensation, or crown dislodgement warrants professional review
Attend regular check-ups — routine dental visits help monitor your crown and maintain surrounding oral health

Frequently Asked Questions

How long should sensitivity last after a new crown?

Some degree of sensitivity following crown placement is a normal part of the adjustment period. Most patients find that sensitivity to temperature or pressure settles within one to two weeks as the tooth and surrounding gum tissue adapt. If sensitivity is significant, does not improve after two weeks, or becomes worse over time, it is advisable to contact your dental practice. Your dentist can check whether the bite alignment is correct, assess the gum tissue, and determine whether any further action is appropriate for your individual situation.

Can I eat normally straight after having a crown fitted?

After a permanent crown is fitted, your dentist will usually advise you to wait until any local anaesthetic has fully worn off before eating. This reduces the risk of inadvertently biting your cheek or tongue. For the first 24–48 hours, it is generally recommended to eat softer foods and avoid the crowned side where possible. Temporary crowns require more caution — sticky and hard foods should be avoided throughout the temporary phase to reduce the risk of displacement.

Is it normal for a crown to feel different when biting?

It is quite common for a newly placed crown to feel slightly different to your natural bite. Your teeth and jaw will often adjust naturally within a few days. However, if the crown consistently feels too high when you close your teeth, or if biting causes notable discomfort, this may indicate that a minor bite adjustment is needed. This is a straightforward procedure that your dentist can perform at a short follow-up appointment. Do not delay contacting your dental practice if bite discomfort continues.

Can decay still develop under a dental crown?

Yes — decay can develop at the margin where the crown meets the natural tooth, particularly if oral hygiene in this area is inadequate. The crown material itself cannot decay, but the natural tooth structure beneath and around the crown remains susceptible to bacterial acid. This is why maintaining effective cleaning at and around the crown margin — including flossing or using interdental brushes — is so important. Regular dental check-ups also allow your dentist to monitor the crown margins for early signs of change.

What should I do if my crown falls out?

If your crown comes out, remain calm. Rinse the crown gently with clean water and store it somewhere safe — ideally in a small container or a sealed bag. Avoid attempting to re-cement it yourself using household adhesives, as these can be harmful to oral tissues and may interfere with professional re-cementation. Contact your dental practice as soon as possible to arrange an appointment. In many cases, a crown can be re-cemented, though your dentist will examine the tooth and crown to assess whether this is appropriate.

How long should a dental crown last?

The lifespan of a dental crown depends on a number of factors including the material used, the position of the tooth in the mouth, your oral hygiene habits, and whether you grind your teeth. Crowns that are well maintained and regularly reviewed can last ten years or longer in many cases, though it is not possible to guarantee a specific lifespan for any individual restoration. Your dentist can give you an indication of what to expect based on your particular crown and oral health circumstances.

Conclusion

Receiving a dental crown is an effective way to restore and protect a tooth that has been damaged or weakened. However, the care you take following crown placement plays a meaningful role in how well the restoration performs over time. Understanding what to avoid doing with a new crown — from certain foods and habits to lapses in oral hygiene — helps support the longevity of the restoration and the health of the surrounding tissues.

In the initial period after placement, give your tooth time to adjust, be gentle with the crowned area, and follow any specific advice given by your dental team. If you have any concerns about sensitivity, fit, or appearance, your dentist is best placed to advise you.

Maintaining regular dental check-ups and hygiene appointments ensures that your crown and overall oral health are monitored over the long term, helping to identify any changes early.

Dental symptoms and treatment options should always be assessed individually during a clinical examination.

This article is intended for general educational purposes only and does not constitute personalised dental advice. Individual diagnosis and treatment recommendations require a clinical examination by a qualified dental professional.

Next Review Due: 07 August 2027

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