A metal core under the porcelain
Porcelain-fused-to-metal crowns need an opaque layer to hide the metal. That layer blocks light, so the crown looks flat and the gum beside it can look grey, especially in daylight.
Crown replacement
Replacing Old, Dark or Mismatched Crowns in Dubai
A crown that has turned grey, shows a dark edge or no longer matches your teeth can usually be replaced. The tooth and gum underneath are checked first, so the new crown starts on a healthy base.
- X-ray check under the old crown
- Shade matched in person
- Lab in the same building
If you know when and where the crown was made, or have old X-rays, bring them. They help plan the removal.
Quick answer
Can an old, dark or mismatched crown be replaced?
Yes, usually. Old crowns often look grey or opaque because of a metal core under the porcelain, gum recession that exposes the edge, or natural teeth that have changed colour around them. At Creative Arts in Dubai, the tooth and gum are checked first, the old crown is removed under local anaesthetic, anything underneath is treated, and a new ceramic crown is shade-matched to your own teeth.
27 yearsIn-house dental laboratory in the same building
Written planItemised treatment plan before you commit
Open daily10:00–20:00, seven days a week
Jumeirah 3614 Jumeira St, Umm Suqeim 1, Dubai
Why it happens
Why do old crowns look grey, dark or opaque?
Most crowns that stand out have one of these problems, and some have several. Each one points to a different fix.
The edge has become visible
As gums recede with age or brushing, the margin of the crown, or a band of darker root, appears at the gum line. See our page on the dark line around a crown.
Your other teeth have changed
Natural teeth darken or yellow over the years, and get lighter after whitening. A crown keeps its original colour, so a match that was right ten years ago may no longer be.
A leak at the margin
When the seal between crown and tooth breaks down, stain and decay can creep underneath. It may show as a brown or black edge, a bad taste or sensitivity.
Wear, chips and an old shape
Glaze wears off, porcelain chips, and shapes made for a younger smile can look bulky or too square next to teeth that have worn naturally.
At a glance
Crown replacement: the quick facts
- What it is
- Removing an old crown, treating the tooth beneath, and fitting a new ceramic crown
- Who it suits
- Crowns that are dark, opaque, leaking, chipped, loose or no longer match
- Typical visits
- Assessment, preparation with a temporary crown, try-in and fitting, then a review
- Laboratory time
- Typically 3–5 working days, depending on complexity
- Comfort
- Removal and preparation are done under local anaesthetic
- Replacement materials
- E.max (lithium disilicate) or layered or monolithic zirconia, chosen per tooth
- Who treats you
- Dr. Khalid Saeed, Dr. Kinan Bonni or Dr. Marina Antoniuk
- Where
- 614 Jumeira St, Jumeirah 3, with Creative Art Dental Lab in the same building
Is it time?
When should an old crown be replaced, and when can it stay?
A crown is not replaced just because it is old. The decision rests on what the examination and X-rays show, and on what bothers you.
Signs replacement is worth discussing
- Decay or a gap at the margin on the X-ray or under the probe
- A crown that moves, has come off or keeps feeling high
- Chipped porcelain or exposed metal
- Gum around the crown that stays red, swollen or bleeds
- A front crown that is clearly darker, greyer or more opaque than its neighbours
Often fine to leave, or fix another way
- A sound crown that is slightly lighter than teeth that have yellowed: whitening the natural teeth may restore the match
- A back crown that is sealed and healthy but not perfectly coloured
- A grey root showing through very thin gum, which a new crown alone may not hide
- A crown you are happy with that only needs polishing
The process
How is a crown replaced, step by step?
Most crown replacements follow this sequence. The tooth under the old crown is the unknown, so the plan allows for what is found.
Assessment and X-rays
The dentist checks the crown margin, the gum, the bite and the root, and an X-ray looks for decay, root canal problems or bone loss. You receive a written plan with the options and costs.
Visit 1Health and colour first
Inflamed gum is treated so it settles before impressions. If you want whiter teeth, whitening is done first and the shade allowed to settle, because the new crown is matched to the final colour.
If neededRemoval and rebuild
Under local anaesthetic the old crown is cut off carefully; it usually cannot be reused. Decay is removed and the core rebuilt. If the nerve is involved, or an old root filling is failing, root canal treatment or retreatment comes first.
Preparation visitScan, shade and temporary
The tooth is scanned, the shade recorded with photographs, and a temporary crown fitted to protect the tooth while the new one is made.
Same visitTry-in, fit and review
The new crown is tried in to check shade, shape and fit before it is cemented, then the bite is adjusted. A review visit checks the gum around the new margin.
Fitting visit
From dentist to dental lab
How a replacement crown is matched to its neighbours
Matching one crown to natural teeth is harder than making a full set, because the eye compares it directly with the teeth beside it. Creative Art Dental Lab is in the same building as the clinic, so the ceramist can see your teeth in person, under the same light as your dentist, and judge shade, translucency at the edge and surface texture, not just a number on a shade tab. If the try-in shows a small difference, adjustments to shade or shape can often be made the same day before the crown is fitted.
- 1Consultation & records — examination, photographs and the radiographs your case needs
- 2Digital scan — an intraoral scan replaces impression trays for most cases
- 3Design — the restoration or smile is designed digitally and reviewed with you
- 4Lab fabrication — milled from ceramic, then hand-finished for shade and texture
- 5Try-in — shade, shape and fit checked in your mouth, adjusted in-house if needed
- 6Placement & review — bonded or cemented, bite balanced, reviewed afterwards
Choosing the new crown
Which material replaces an old metal-ceramic crown?
Modern replacements are usually all-ceramic, with no metal to show at the gum or block light. The choice depends on where the tooth is, how dark the tooth underneath is, and your bite.
E.max
Lithium disilicate
- Best for
- Front teeth where light should pass through naturally
- Look
- High translucency; very close to enamel
- Dark tooth underneath
- May need a more opaque version to mask it
- Bite
- Strong for most front and premolar crowns
Layered zirconia
Zirconia core, hand-layered ceramic
- Best for
- Front or back teeth needing extra strength, or masking a dark core or post
- Look
- Natural when layered well; slightly less translucent than E.max
- Dark tooth underneath
- Masks discolouration well
- Bite
- Very strong core
Monolithic zirconia
Single block, stained and glazed
- Best for
- Back teeth and heavy biters
- Look
- Good, less lifelike up close than layered ceramic
- Dark tooth underneath
- Masks well
- Bite
- Very strong; resists chipping
Getting the match right
What decides whether a new crown blends in?
Shade is only one part of the match. A crown can be the right colour and still stand out if its edge is too opaque, its surface too glossy, or its shape wider than the tooth on the other side. The ceramist works on all of these, using photographs taken at the preparation visit and, for clinic patients, seeing the teeth in person.
Two things are decided before the shade is taken. First, whitening: ceramic does not respond to bleaching (why crowns cannot be whitened), so if you want lighter teeth, whiten first. Second, what else is changing: if a neighbouring veneer or implant crown is also being redone, they are planned together, as explained in our guide to matching veneers, crowns and implants. The general crown process and options are on our main dental crowns page.
Who treats you
Dentists who assess and replace old crowns
Dr. Khalid Saeed, Dr. Kinan Bonni and Dr. Marina Antoniuk plan and carry out crown work at Creative Arts; Dr. Marina also uses a dental microscope for detailed restorative and root canal work.
Patient questions
Frequently asked questions
Why does my old crown look grey or darker than my other teeth?
Most often because it has a metal core: the opaque layer that hides the metal also stops light passing through, so the crown looks flat and the gum beside it can look grey. Other causes are a margin exposed by gum recession, stain or decay at a leaking edge, or natural teeth that have become lighter or darker since the crown was made.
Can an old crown be removed without damaging the tooth?
The crown is usually cut off carefully under local anaesthetic, aiming to remove only the crown and cement. Old crowns rarely come off whole and are not normally reused. What is found underneath, such as decay or an old core, is treated before the new crown is made, and the X-ray beforehand shows what to expect.
Can a crown be whitened to match my other teeth?
No. Whitening gel does not change the colour of a ceramic crown. If the crown is lighter than teeth that have yellowed, whitening the natural teeth may bring them back into line. If the crown is darker or greyer than your teeth, replacing the crown is usually the only way to match it.
How long does crown replacement take?
Usually two main visits: one to remove the old crown, prepare the tooth, scan it and fit a temporary, and one to try in and fit the new crown. The laboratory typically needs 3–5 working days, depending on complexity. If the tooth needs gum treatment, whitening or root canal work first, the plan is longer.
Will I need a root canal when my crown is replaced?
Not usually. A root canal is needed only if decay under the old crown has reached the nerve, the nerve is already inflamed or dead, or an existing root filling is failing. The X-ray and examination before removal give a good indication, and the final decision is sometimes made once the old crown is off.
Can a single front crown match my natural teeth?
It is the hardest crown to match, because it sits right beside its twin, but a close match is usually achievable. Shade, translucency, edge detail and surface texture are all copied, and the ceramist can see your teeth in person because the laboratory is in the same building. The crown is tried in before it is fitted.
Is it worth replacing a crown that does not hurt?
Sometimes. A leaking crown can allow decay underneath without any pain until it is advanced, so X-ray findings matter more than symptoms. On the other hand, a sound crown that is only slightly off in colour on a back tooth can often stay. The assessment separates a health reason from a cosmetic one.
Keep exploring
Related treatments
RestorativeRestorative dentistryCrowns, bridges and full mouth rehabilitation.CrownsDental crowns in DubaiMaterials, process and care for new crowns.ConditionDark line around a crownMetal margins, recession and leaks at the gum line.GuideMatching veneers, crowns and implantsPlanning mixed restorations so they look like one smile.GuideWhat is zirconia?The ceramic behind strong, metal-free crowns.Cost guideDental crowns costWhat decides the cost of a crown.
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- Address614 Jumeira St, Jumeirah 3, Umm Suqeim 1, Dubai
- Opening hoursClinic open daily, 10:00–20:00
- Phone+971 4 342 4444 · WhatsApp +971 56 677 7537
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