A crown and a bridge address different dental needs, so a dental crown or bridge isn’t always a simple either-or choice. A crown usually restores an existing damaged tooth, while a bridge generally replaces a missing tooth or teeth, and crowns may even support certain bridge designs. Which treatment fits your situation depends on the condition of the affected area and neighbouring teeth, so an examination is required before deciding.
Quick-Answer Verdict
A dental crown covers and helps restore an existing tooth.
A dental bridge replaces one or more missing teeth by spanning the space.
Traditional bridges often use crowns on neighbouring teeth for support.
A crown alone cannot replace an entire missing tooth unless it forms part of an implant-supported restoration.
The decision depends primarily on whether the tooth is present, restorable, or missing.
A dentist must examine the area before recommending treatment.
What Is the Difference Between a Dental Crown or Bridge?
A dental crown covers an existing tooth, while a dental bridge fills a space left by one or more missing teeth. A traditional bridge may include crowns placed on supporting teeth.
Designs, materials, and support methods vary between patients, so not every crown or bridge is built the same way.
A dental crown covers and restores an existing tooth that is damaged or weakened. A dental bridge replaces one or more missing teeth and is supported by neighbouring teeth, dental implants, or another planned structure.
When Is a Dental Crown Recommended?
A dental crown may be recommended when an existing tooth requires more coverage or structural support than a smaller restoration can provide.
Situations typically discussed include extensive decay, a large or failing filling, a cracked, fractured, or significantly worn tooth, a tooth weakened following root canal therapy, a tooth requiring shape or structural restoration, replacement of an old or damaged crown, or coverage of a dental implant as part of implant treatment.
Assessment factors include the amount of healthy tooth structure, the location of the tooth, bite forces, the extent of damage or decay, gum and bone health, the condition of the tooth root, symptoms and vitality, existing restorations, your ability to clean and maintain the tooth, and alternative treatments.
A crown cannot save every damaged tooth. If a tooth has extensive structural damage, root problems, severe decay, or inadequate support, another treatment (including extraction, discussed in our tooth extraction guide) may be necessary instead.
When Is a Dental Bridge Recommended?
A dental bridge may be considered when one or more teeth are missing and the surrounding teeth, implants, and oral tissues can appropriately support the planned restoration.
Situations typically discussed include one missing tooth, several adjacent missing teeth, a preference for a fixed replacement, suitable neighbouring teeth available for support, implant-supported treatment being unsuitable or not preferred, or wanting to restore appearance or chewing function.
Factors affecting bridge suitability include the number and location of missing teeth, the condition of adjacent teeth, gum and bone health, bite forces, the size of the space, your ability to clean beneath the bridge, existing crowns or restorations, your health and treatment preferences, whether implants are appropriate, and long-term maintenance requirements.
Potential limitations include the need to prepare supporting teeth, careful cleaning required beneath the bridge, supporting teeth remaining susceptible to decay or gum problems, eventual repair or replacement, and the fact that not every missing-tooth space is suitable for bridge treatment.
How Do You Choose Between a Dental Crown or Bridge?
The decision begins with whether the affected tooth is present and restorable, or entirely missing.
If the tooth is present but damaged, a crown may be considered if enough suitable tooth structure and support remain.
If the tooth is missing, a bridge, implant-supported restoration, or removable replacement may be considered.
If the tooth cannot be restored, your dentist may discuss extraction and later tooth-replacement options.
If a root canal has been completed, a crown may be recommended in some situations to restore and protect the treated tooth. The recommendation depends on the tooth and remaining structure, not a fixed rule.
If neighbouring teeth are healthy, your dentist can discuss whether preparing them for a traditional bridge is appropriate, or whether another replacement may conserve more tooth structure.
Overall, the decision weighs whether the tooth is present or missing, restorability of the damaged tooth, the condition of adjacent teeth, root, gum and bone health, bite and chewing forces, aesthetic requirements, treatment time, maintenance needs, cost, your preferences, and any alternative treatments worth considering.
| Consideration | Dental Crown | Dental Bridge |
| Primary purpose | Restore or protect an existing tooth | Replace one or more missing teeth |
| Tooth status | The tooth remains present and restorable | A gap exists where a tooth is missing |
| Support | Natural tooth or dental implant | Natural teeth, implants, or another appropriate design |
| Number of units | Usually one restoration | Multiple connected units |
| Tooth preparation | Affected tooth is prepared | Supporting teeth may require preparation |
| Cleaning | Brush and clean around the crowned tooth | Special attention is needed beneath and around the bridge |
| Main alternatives | Filling, inlay, onlay, or other restoration | Implant-supported replacement or removable appliance |
| Dental Concern | Treatment Commonly Evaluated |
| Existing but damaged tooth | Dental crown |
| Missing tooth with suitable neighbouring support | Dental bridge |
| Missing tooth being replaced with an implant | Implant and implant-supported crown |
| Several missing teeth | Bridge, implants, or removable tooth replacement |
| Severely damaged tooth that cannot be restored | Extraction followed by assessment of replacement options |
How Long Does a Dental Crown or Bridge Last?
Crowns and bridges don’t have a guaranteed lifespan. Their longevity depends on the condition of supporting teeth, materials, bite forces, oral hygiene, habits, and professional maintenance.
Factors affecting longevity include the health of the supporting tooth or teeth, the quality and suitability of remaining tooth structure, gum and bone health, the crown or bridge material, bite forces, teeth grinding or clenching, oral hygiene, cleaning beneath a bridge, diet and habits, dental trauma, regular examinations, and the individual treatment design.
Signs a restoration needs assessment include pain or sensitivity, looseness or movement, a chipped or fractured surface, food trapping, difficulty cleaning the area, bleeding or swollen gums, an unpleasant taste or odour, bite changes, visible gaps at the restoration edge, or damage to supporting teeth. Depending on the cause, your dentist may recommend monitoring, adjustment, repair, or replacement.
What Does a Dental Crown or Bridge Cost?
The cost of a dental crown or bridge varies according to the number of teeth involved, materials, treatment complexity, and preparatory care.
Cost factors include the crown or bridge treatment itself, the number of bridge units, the number of supporting teeth, the material selected, diagnostic records, tooth preparation, treatment for decay or gum disease, root canal therapy when clinically necessary, temporary restorations, laboratory fees, sedation options when appropriate, repair or replacement of existing restorations, dental insurance, and provider fees and location.
Questions worth asking: What is included in the treatment estimate? Will any preliminary treatment be required? Which material is recommended and why? Does the estimate include a temporary restoration? How many appointments may be necessary? Are follow-up adjustments included? What future maintenance may be required? What alternatives are available? Could dental insurance contribute to the cost?
We haven’t published a universal price here. Any figure that applies to one patient may not apply to another, so your estimate should come from your own consultation.
How Should You Care for a Dental Crown or Bridge?
Crowned teeth and bridge-supporting teeth can still develop decay or gum problems, so ongoing care matters.
General care includes brushing using the technique recommended by the dental team, cleaning between teeth daily, attending routine dental examinations and cleanings, avoiding using teeth to open packages or bite hard objects, discussing grinding or clenching with your dentist, seeking an assessment if the restoration feels loose or damaged, and continuing to care for the gums surrounding the restoration.
Bridge-specific care typically involves cleaning beneath the replacement tooth and around the supporting teeth using professionally recommended tools or techniques. The right approach depends on your bridge design and individual needs, not a single device that fits everyone.
Important safety points: don’t repair a crown or bridge with household glue, don’t ignore recurring pain or swelling, don’t continue chewing on a loose restoration, and seek prompt advice if a temporary or permanent restoration dislodges. Significant swelling, severe pain, or other urgent symptoms should always be professionally evaluated. If a restoration comes loose or breaks outside of regular office hours, see our guide on what to do during a dental emergency after hours.
What Are the Alternatives to a Dental Crown or Bridge?
Possible alternatives include a dental filling, an inlay or onlay, dental bonding, a dental implant and implant-supported crown, an implant-supported bridge, a removable partial denture, other removable tooth-replacement options, extraction when a tooth cannot be restored, or monitoring in selected situations.
| Dental Situation | Options a Dentist May Assess |
| Moderately damaged tooth | Filling, inlay, onlay, or crown |
| Severely damaged tooth | Crown, root canal treatment, or extraction, depending on findings |
| Single missing tooth | Bridge, implant-supported crown, or removable replacement |
| Several missing teeth | Bridge, implants, or removable partial denture |
| Old crown or bridge | Repair or replacement, depending on its condition |
No alternative here is appropriate without an examination. This table is a starting point for discussion, not a diagnosis.
Conclusion
A crown restores an existing tooth, while a bridge replaces one or more missing teeth, and traditional bridges may use crowns on adjacent teeth for support. The right treatment depends on whether the tooth is present, restorable, or missing, and your supporting teeth, gums, bone, bite, and maintenance requirements all need to be assessed. A dental examination is necessary before any treatment can be recommended.
If you have a damaged or missing tooth, arrange a restorative consultation with Sky Dental Centre in Thunder Bay. A dentist can assess the affected area and explain whether a crown, bridge, or another treatment may be appropriate for you.
Sky Dental Centre is a general dentistry practice serving Thunder Bay, Ontario.
Frequently Asked Questions
What is the difference between a dental crown or bridge?
A crown covers and restores an existing tooth, while a bridge replaces one or more missing teeth. A traditional bridge may use crowned neighbouring teeth to support the replacement tooth in between.
Is a dental crown or bridge better for missing teeth?
A bridge may replace a missing tooth, while a conventional crown alone cannot. An implant-supported crown, fixed bridge, or removable appliance may be considered depending on your oral health and preferences.
How do I know if I need a dental crown or bridge?
A crown may be considered for a restorable but significantly damaged tooth, while a bridge may be considered when a tooth is missing. An examination and appropriate diagnostic records are required before either can be recommended.
How long does a dental crown or bridge last?
Longevity varies according to materials, supporting tooth health, bite forces, oral hygiene, and maintenance. Neither treatment should be described as permanent or guaranteed to last for a fixed period.
Can a dental crown or bridge restore chewing function?
Crowns and bridges may help restore chewing function when appropriately planned, but results vary according to tooth location, supporting structures, bite, and overall oral health. Function isn’t guaranteed to be identical to that of natural teeth.