Dental fillings, crowns, and bridges are designed to restore damaged teeth and help you maintain a comfortable, functional smile. With proper care, many restorations can remain in good condition for years. However, dental work is not necessarily permanent.
This becomes particularly important as we get older. Some adults and seniors have fillings or crowns that were placed decades ago. Even if they still look fine, normal chewing, teeth grinding, changes in the gums, and wear to the surrounding natural tooth can eventually create problems.
At Perlmutter Dentistry, we help adults and seniors throughout North York and surrounding Toronto communities monitor existing dental work as part of their ongoing oral health care. Here are some signs that an older filling, crown, or bridge may need a closer look.
Dental Restorations Can Wear Down Over Time
Your teeth experience significant pressure every day. Every time you bite or chew, those forces are transferred through both your natural teeth and any restorations.
Over many years, fillings can wear around their edges, crowns can become damaged, and bridges may require attention. The natural teeth supporting these restorations can change as well.
This does not mean older dental work should automatically be replaced. If a restoration remains functional and the surrounding tooth is healthy, your dentist may simply continue monitoring it during regular dental cleanings and checkups.
The goal is to identify problems when there is a reason for treatment, rather than replacing dental work based only on its age.
1. Older Fillings Can Develop Worn or Damaged Edges
Fillings restore areas of a tooth damaged by decay or injury. Over time, the filling material and natural tooth are exposed to thousands of chewing cycles.
Eventually, the edges of a filling may become worn, chipped, or damaged. Small spaces can potentially develop between the filling and tooth, making the area more difficult to keep clean.
You may notice sensitivity, discomfort when biting, or a rough area that catches your tongue. In other cases, there may be no obvious symptoms.
Routine examinations allow your dentist to evaluate existing dental restorations and determine whether they are still protecting the tooth properly.
2. Decay Can Develop Around an Existing Restoration
Having a filling or crown does not make the remaining natural tooth immune to cavities.
Plaque can still accumulate where the restoration meets the tooth. If bacteria reach vulnerable tooth structure, new decay can develop around or underneath an older restoration.
This can sometimes be difficult for patients to notice on their own because much of the affected tooth may be covered.
Regular dental examinations and appropriate X-rays can help identify changes that may not be visible when you look in the mirror.
Preventative care remains important even if you have extensive dental work. Professional dental cleanings remove plaque and hardened tartar from areas that can be difficult to clean effectively at home.
3. Crowns Can Chip, Crack, or Become Loose
A dental crown covers and protects a tooth that has been weakened or significantly restored. Crowns are made to withstand normal chewing forces, but years of use can eventually take a toll.
A crown may become chipped or cracked, particularly if you grind your teeth or regularly bite hard foods or objects.
You might also notice that a crown feels different when you bite, has become sensitive, or seems slightly loose.
A loose crown should be examined promptly. Movement can allow bacteria and food debris to reach areas that are normally sealed and protected.
Depending on the condition of the crown and underlying tooth, your dentist can determine whether the restoration can remain in place or whether additional treatment is needed.
4. Dental Bridges Depend on the Supporting Teeth
A dental bridge replaces one or more missing teeth using neighbouring teeth for support.
Because those supporting teeth play such an important role, their health needs to be monitored carefully. Decay, gum disease, or damage affecting a supporting tooth can potentially compromise the entire restoration.
Cleaning around and underneath a bridge is also important because plaque can collect in areas that a standard toothbrush may not reach easily.
Your dental hygienist can show you appropriate techniques and tools for keeping the area clean as part of your ongoing preventative dental care.
5. Gum Recession Can Change How Dental Work Fits
Your gums can change throughout your lifetime.
As gum tissue recedes, the margins of older crowns or bridges may become more noticeable. Exposed root surfaces can also become sensitive or more vulnerable to decay.
Gum recession may be related to periodontal disease, brushing habits, tooth position, or other factors.
If you notice bleeding, persistent bad breath, gum recession, or changes around an older restoration, an evaluation can determine whether gum disease treatment or another approach is appropriate.
6. Changes in Your Bite Can Put Pressure on Older Dental Work
Your bite is not necessarily identical throughout your entire life.
Teeth can shift, wear down, or be lost. New restorations may also change how chewing forces are distributed.
If certain teeth begin receiving more pressure than they previously did, existing fillings, crowns, and bridges may experience additional stress.
Teeth grinding and clenching can further increase these forces.
Tell your dentist if your bite suddenly feels different, you experience discomfort while chewing, or one tooth seems to make contact before the others.
Signs Your Older Dental Work Should Be Checked
Not every problem with a restoration causes immediate pain. That is why routine examinations remain important, particularly for adults who have had extensive dental work over the years.
Contact your dentist if you notice persistent sensitivity, pain when biting, a loose crown or bridge, a chipped restoration, food repeatedly becoming trapped around dental work, or a noticeable change in your bite.
You should also have a restoration checked if a piece breaks off, even if the tooth does not hurt.
Waiting for severe pain can allow a relatively manageable problem to become more complicated.
Should Old Fillings and Crowns Automatically Be Replaced?
No. Age alone does not necessarily mean a restoration needs to be replaced.
A filling, crown, or bridge that remains functional, comfortable, and properly sealed may continue serving you well. Replacing healthy dental work unnecessarily also removes additional natural tooth structure in some situations.
Instead, your dentist can monitor restorations during regular appointments and recommend treatment when there is evidence of damage, decay, poor fit, or another clinical concern.
This approach is particularly valuable for seniors who may have accumulated several restorations throughout their lives. Preserving healthy natural tooth structure whenever possible remains an important part of long-term dental care.
Keep Your Dental Work Working for You
Fillings, crowns, and bridges have helped millions of people keep their natural teeth and restore comfortable chewing. Like natural teeth, however, they benefit from daily care and regular professional monitoring.
Brush twice daily, clean between your teeth, and follow any special instructions for cleaning underneath bridges or around other restorations.
Most importantly, continue attending regular dental appointments even when everything feels normal. Your dentist may be able to detect small changes long before you notice symptoms yourself.
Have Older Dental Work? Book a Checkup at Perlmutter Dentistry
If you have fillings, crowns, bridges, or other dental work that has been in place for many years, Perlmutter Dentistry can evaluate its condition and the health of the natural teeth underneath and around it. Our North York dental team provides comprehensive preventative and restorative care for adults and seniors, with a focus on preserving healthy natural teeth whenever possible. Contact Perlmutter Dentistry or call (416) 783-2272 to book an appointment and have your existing dental work checked.
Frequently Asked Questions
How long do dental fillings usually last?
There is no exact lifespan for every filling. Longevity depends on the filling material, size and location of the restoration, your bite, oral hygiene, grinding habits, and other factors. Your dentist can monitor older fillings during routine examinations.
How do I know if an old crown needs to be replaced?
Possible warning signs include sensitivity, pain when biting, movement, visible cracks or chips, or changes around the edge of the crown. Some problems cause no symptoms, which is why regular dental examinations are important.
Can you get a cavity underneath a crown or filling?
Yes. The restored portion itself does not develop decay, but the remaining natural tooth can. New decay can sometimes develop where a filling or crown meets the tooth.
Should old dental fillings be replaced even if they do not hurt?
Not necessarily. An older filling that remains functional and is not showing signs of damage or decay may simply be monitored. Your dentist can determine whether there is a clinical reason for replacement.
Are regular dental checkups more important if I have a lot of dental work?
Regular checkups are particularly useful when you have multiple fillings, crowns, bridges, implants, or other restorations. They allow your dentist to monitor both the dental work and the natural teeth and gums supporting it.