We just placed your permanent dental crown — the culmination of a process that will protect your tooth for many years. With proper care, a crown can last 10, 15 or even 20 years. This guide tells you exactly what to do to make that possible.

What is a dental crown and what was done today?

A dental crown is a custom covering that completely encases the visible structure of the tooth — from the gum line upward. It is fabricated in a dental laboratory to the exact dimensions of your tooth and permanently cemented. The crown restores the shape, size, strength and appearance of the tooth.

Type of crown you received:

All-porcelain / All-ceramic

Most aesthetic

The most aesthetic option. Very natural color and translucency. Ideal for front teeth. Excellent biocompatibility.

Porcelain-fused-to-metal (PFM)

High strength

Metal core with porcelain on top. High strength and good aesthetics. The most used for decades. May show a dark metal edge at the gum line over time.

Zirconia

Best durability

The strongest ceramic. Natural color, metal-free, very durable. Ideal for molars and bruxism patients. High fracture resistance.

Metal / Stainless steel

Back teeth

High strength, lower cost. Used mainly on back molars or temporarily. Metallic color visible.

Why did you need the crown?

Tooth severely destroyed by decay that cannot be restored with composite
Extensively fractured or broken tooth
Protection of a tooth after a root canal
Covering a dental implant
Improving the appearance of a severely stained or malformed tooth
Abutment for a fixed dental bridge

The crown you received today is permanent — it is definitively cemented over your prepared tooth or implant. It does not come in and out like a removable denture.

The First Hours After Cementation

The cement needs time to fully set

Avoid eating for the first 1-2 hours (Important): The bonding cement needs time to reach its final strength. For the first hour (minimum), avoid biting on the crown. After 2 hours you can eat with moderation.
Moderate temperature the first hours: Avoid very cold or very hot foods or drinks immediately after cementation. Post-procedure sensitivity is common and temperature extremes aggravate it.
The bite may feel different: It is completely normal for the bite to feel different — higher, different or strange — the first days as you adapt. If after 5-7 days you feel a very marked pressure point when biting, let us know for a small adjustment.
Temporary sensitivity is normal: The tooth may be sensitive to cold, heat or pressure for the first days to weeks. Especially if the nerve was active during the procedure. This improves over time.

If anesthesia was used for cementation: wait until it wears off completely (2-4 hours) before eating. The risk of biting your lip or cheek while the area is numb is real.

Sensitivity and Pain: What to Expect

Depends on the condition of the tooth under the crown

Crown over tooth with live nerve

If the tooth still has its nerve (no root canal), it is normal to feel sensitivity to cold, heat and sometimes biting for the first 1-3 weeks. This sensitivity gradually decreases as the tooth adapts.

Crown after root canal

If the tooth has no nerve (was root canal treated before the crown), there will be very little or no sensitivity to cold/heat. There may be some periodontal ligament discomfort when biting the first days.

Crown over implant

Implants have no nerve, so there will be no dental sensitivity to cold or heat. There may be slight sensitivity in the gum or surrounding soft tissue during the first days.

Day 1-3 (Normal) — Initial adaptation: Sensitivity when biting, to cold or heat. Bite that feels different. The period of most discomfort.
Day 4-14 (Improving) — Progressive improvement: Sensitivity gradually decreasing. Bite feeling more natural. Tooth and gum adapting.
Week 2-4 (Good) — Complete adaptation: Most patients no longer notice the crown. Sensitivity has gone or is minimal. Normal function.

If pain is very intense from the start, doesn’t respond to pain relievers, or if after week 3 sensitivity worsens instead of improving, let us know. It may indicate a problem with the nerve or bite adjustment.

Medication if Needed

For the initial adaptation period

In many cases no medication is needed after placing the permanent crown. If there is discomfort, the following may help:

Ibuprofen

400mg with food, every 6-8 hours as needed

First option if there is post-cementation discomfort. Has anti-inflammatory effect in addition to pain relief. Avoid if you have gastritis.

Acetaminophen

500-1000mg every 6-8 hours as needed

Gentler alternative if you don’t want ibuprofen. No anti-inflammatory effect but effective for pain.

If pain is very intense and doesn’t subside with these medications, let us know — it’s not normal and requires evaluation. Don’t self-medicate with antibiotics without a prescription.

Eating with a Dental Crown

What you need to know permanently, not just the first days

First 3-5 days — special caution:

Preferably soft foods — your tooth and gum are adapting
Moderate temperature — avoid extremes that increase sensitivity
Eat on the opposite side if there is noticeable bite discomfort
Avoid very hard foods the first few days

Always avoid with a crown — habits that shorten its life:

Biting hard non-food objects (high): Pens, pencils, nails, bottle caps, ice. Twisting forces can fracture porcelain.
Chewing ice (high): Ice is extremely hard. Can fracture even the most resistant ceramics.
Frequent very sticky foods (medium): Chewy candies, taffy, toffee. The pulling can loosen cement over time.
Opening things with your teeth (high): Packages, bottles, tags. Lateral forces are very damaging to the crown.
Untreated bruxism (very high): Grinding teeth destroys ceramic crowns. If you have bruxism, you need a night guard.

Fine with the crown:

Well-cooked meats cut into normal pieces
Raw fruits and vegetables in normal pieces
Bread and cereals normally
Foods at normal temperature
Practically everything — the crown is designed for normal chewing

Hygiene with a Dental Crown

The biggest mistake: thinking the crown can’t get cavities

The crown itself cannot decay — ceramic or metallic material doesn’t get cavities. BUT the natural tooth below the crown CAN. Decay can develop at the crown margin — the line where the crown ends and the natural tooth begins. If that area isn’t cleaned well, decay can destroy the tooth under the crown and lose all the work done.

Normal brushing 2-3 times daily: Brush the crown like any other tooth. Pay special attention to the gum margin around the crown — right where the crown ends and the gum begins. Use a soft-bristle brush with circular motions.
Dental floss — essential, not optional: Dental floss is the most important tool for crown care. Pass it between the crown and adjacent teeth daily. Reach down to where the gum starts. The plaque that accumulates in that space is the main cause of marginal decay and periodontal disease around the crown.
Regular toothpaste (without strong abrasives): Use regular toothpaste. Avoid highly abrasive pastes or excessive baking soda — long-term they can scratch the porcelain surface and reduce its luster. Regular toothpastes are perfectly adequate.
Fluoride rinse: A daily fluoride rinse helps protect the natural tooth enamel at the edges of the crown. Fluoride doesn’t affect the crown itself, only the surrounding natural tooth.
Water flosser (optional but recommended): A water flosser (Waterpik) is very effective for cleaning the space between the crown and gum. Complements dental floss but doesn’t replace it. Aim at medium pressure toward the gingival groove around the crown.

The most critical area: the crown margin: The margin is the line where the crown ends and the tooth or gum begins. It’s the most vulnerable point. Bacterial plaque that accumulates there can cause decay under the crown (secondary decay) or gum inflammation. Brushing and flossing that specific area is the difference between a crown that lasts 5 years and one that lasts 20.

Habits that Protect or Destroy Your Crown

The difference between 5 and 20 years of lifespan

Habits that extend crown lifespan:

Impeccable hygiene — brushing + dental floss every day
Dental check-ups every 6 months without exception
Night guard if you have bruxism — the best investment
Never biting non-food objects
Reporting any sensation of ‘movement’ or bite change
Professional cleanings that include crown polishing

Habits that shorten crown lifespan:

Untreated bruxism — the fastest destroyer
Biting ice, hard candies, bones
Opening packages or bottles with your teeth
Poor hygiene — silent marginal decay
Skipping check-ups — small problems that become big
Smoking — stains the crown and damages surrounding gum

Long-Term Maintenance

So your crown lasts decades

Professional check-up every 6 months

At each visit we check crown condition: porcelain integrity, margin fit, surrounding gum health, secondary decay, and bite adjustment. Detecting a small problem early avoids having to replace the crown.

Professional cleaning

Crowns accumulate tartar and plaque like any tooth. Professional cleaning includes special polishing of the crown that restores its shine and removes surface stains. If you have porcelain crowns, we inform the hygienist to use appropriate instruments that don’t scratch the surface.

Expected lifespan by material:

All-porcelain / Ceramic: 10-15 years — With bruxism may fracture sooner
Porcelain-fused-to-metal (PFM): 15-20 years — Very durable, especially on molars
Zirconia: 15-25 years — Most resistant to fracture
Full metal: 20-30 years — Most durable of all, but not aesthetic

These figures assume good hygiene, regular check-ups and absence of untreated bruxism. With severe bruxism, any ceramic crown can fracture within 2-3 years.

Warning Signs

When to contact us

Contact the clinic if you experience:

Crown falls off or loosens: If the crown moves, feels loose or comes off completely, call the clinic that day. Store the crown in a clean container. The tooth underneath is left exposed and sensitive. Don’t try to re-glue it with household adhesive.
Intense pain when biting: Especially if it appears after a pain-free period. May indicate a fracture of the crown, the tooth underneath, or that the bite is poorly adjusted.
Sensitivity that worsens over time: If sensitivity progressively increases weeks after cementation instead of decreasing, it may indicate a nerve problem requiring evaluation.
Visible porcelain fragment or irregular edge: If you notice a sharp edge or a chip of porcelain, the crown may be fractured. Come in for evaluation — sometimes it can be repaired, other times it needs replacement.
Chronically swollen, red or bleeding gum around the crown: May indicate plaque buildup at the margin, residual cement that wasn’t removed, or that the crown doesn’t fit perfectly. Requires evaluation.
Persistent bad taste in the crown area: A persistent metallic, bitter or unpleasant taste may indicate cement leakage, marginal decay, or a problem in the surrounding tissue.

This is completely normal:

Sensitivity to cold/heat during the first 1-3 weeks
Bite feeling different the first 3-7 days
Mild gum discomfort around the crown the first days
The tooth feeling different when touched with tongue
Slight change in pronunciation at first (especially front crowns)
Noticing the crown during the first weeks — then it’s forgotten

Keys for a Crown That Lasts Decades

Daily flossing — the margin area is key
Professional check-up every 6 months
Night guard if you have bruxism
Never bite ice or non-food objects
Report worsening sensitivity
Let us know if it moves, loosens or falls

Frequently Asked Questions

Why does it still hurt if the tooth already has a crown?

If the tooth still has its nerve, post-cementation sensitivity is completely normal and can last weeks. If the tooth was root canal treated before the crown, pain may come from the periodontal ligament or gum — both normal short-term. If pain is intense and doesn’t improve, let us know.

Can I whiten my teeth if I have a crown?

The crown does NOT change color with whitening — it maintains the color it was fabricated in. If you whiten natural teeth, there may be a color difference between them and the crown. That’s why whitening is ideally done BEFORE fabricating the crown.

Do I need to do anything special when brushing with the crown?

Yes: pay special attention to the margin between the crown and gum. That space is cleaned with the brush at a 45° angle and with daily dental floss. That’s the area most vulnerable to decay and gum inflammation.

How long does a crown last?

It depends on the material, hygiene and habits. On average between 10 and 20 years. Zirconia and metal-ceramic crowns are the most durable. Untreated bruxism can fracture a porcelain crown within 2-3 years. With good hygiene and no bruxism, many crowns last more than 20 years.

Can the crown get a cavity?

The crown itself can’t — ceramic or metallic material doesn’t decay. But the tooth underneath can. Decay can develop at the crown margin where the artificial material ends and the natural tooth begins. That’s why hygiene in that specific area is so important.

Do I need a night guard if I have a crown?

If you grind or clench your teeth (bruxism), yes — absolutely. Bruxism can fracture a porcelain crown within months. A night guard protects the crown and is the best investment you can make if you have this habit.

Can I eat everything with the crown?

Practically yes. After the first week of adaptation, you can eat normally. The permanent recommendation is to avoid biting ice, opening things with your teeth and eating very hard or sticky candies. The crown is designed to withstand normal chewing.

Why is there a dark line at the gum of my crown?

The dark line typically appears on metal-ceramic (PFM) crowns when the gum recedes over time, revealing the metal edge of the crown. This can be corrected by replacing the crown with an all-porcelain or zirconia one. Let us know if it bothers you aesthetically.

Will I need to replace the crown someday?

Not necessarily. If the crown is in good condition, fits well, the gum is healthy and there’s no decay underneath, it can stay indefinitely. It’s replaced when there’s fracture, secondary decay, a fit problem that can’t be corrected, or when the patient wants aesthetic improvement.

Does the crown affect neighboring teeth?

Not directly. If the crown fits correctly in the bite, it doesn’t generate excessive forces on neighboring teeth. That’s why we carefully check and adjust the bite before definitively cementing.