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Restorative Dentistry
Inlays & Onlays in Turkey
Inlays & Onlays in Turkey: ceramic or composite partial restorations for back teeth, how they compare with large fillings and crowns, and visits.
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What are inlays & onlays?
Inlays and onlays are indirect restorations: rather than being shaped directly in the mouth like a filling, they are made to fit outside the mouth and then bonded into the tooth. An inlay sits within the cusps — the raised points on the biting surface — while an onlay extends over one or more cusps to protect them. They are mainly used on premolars and molars where decay, a fracture or an old filling has removed a significant part of the tooth.
Because they are made as a single solid piece, inlays and onlays can restore the shape and contacts of a back tooth precisely, and ceramic versions are often chosen for their strength and natural appearance. Composite options are also available and are generally easier to repair. Compared with a crown, an onlay usually requires less removal of healthy tooth structure, as only the damaged or weakened areas are covered.
They can be made in two ways. In a two-visit approach, the tooth is prepared and scanned, a temporary is fitted and the final piece is made by a dental laboratory. Where in-surgery milling is available, the restoration can be designed and milled from a ceramic block on the same day. The availability of inlays and onlays, and of same-day milling, is confirmed during your consultation.
What they can help with
- Restore a damaged back tooth while conserving healthy structure
- Protect weakened cusps from fracturing
- Recreate a precise shape and contact with neighbouring teeth
- Replace large, failing or discoloured fillings
Results · before & after
Real smiles, visible change.
Before and after photographs from inlays & onlays and related treatments at our clinic in Istanbul. Drag the handle to compare each pair.
All dental results
Porcelain veneers
Case 01
Dental implants
Case 02
Porcelain veneers
Case 02
Dental implants
Case 03
Porcelain veneers
Case 03
Dental implants
Case 04
Porcelain veneers
Case 04
Who are inlays & onlays for?
Inlays and onlays suit teeth that have lost a moderate amount of structure but still have enough healthy tooth to bond to. Your clinician will assess the size of the damage, the remaining walls and your bite before recommending this over a filling or a crown.
Often a good fit
- Adults with a large or worn filling on a back tooth
- Patients with a fractured cusp and otherwise healthy tooth structure
- Those who want a tooth-coloured restoration for a premolar or molar
- People with good gum health and the ability to keep the area clean
Assessed carefully
- How much healthy tooth remains around the damaged area
- Grinding or clenching, which increases load on the restoration
- Whether the nerve is healthy or root canal treatment is needed
- Gum health and how far the damage extends below the gum line
- Whether the area can be kept dry enough for reliable bonding
Honest information
Benefits, limitations & risks
Potential benefits
- Usually conserves more healthy tooth structure than a crown
- Can strengthen and protect weakened cusps
- Precise fit and contacts help reduce food trapping
- Tooth-coloured materials blend with natural teeth
Limitations
- Takes longer and generally costs more than a direct filling
- A two-visit approach requires wearing a temporary in between
- Not suitable when too little tooth structure remains
- Ceramic can chip or fracture under heavy biting or grinding
Possible risks
- Temporary sensitivity after preparation and bonding
- Debonding or fracture of the restoration over time
- Decay at the margins if plaque is not kept under control
- Inflammation of the nerve where decay was deep, occasionally needing root canal treatment
The procedure
Inlays & Onlays, step by step
The aim is to rebuild only what has been lost, using a restoration that fits accurately and is bonded to the tooth. The choice between an inlay, onlay, filling or crown is made tooth by tooth.
Step 01Examination and X-rays
Your clinician checks the tooth, existing fillings and bite, and takes X-rays to assess decay depth and the health of the nerve. This determines whether an inlay, onlay, filling or crown is the most appropriate option.
Step 02Preparation
Under local anaesthetic, old filling material and decay are removed and the cavity is shaped so the restoration can seat precisely. Healthy tooth structure is kept wherever possible.
Step 03Digital scan or impression
The prepared tooth is recorded with an intraoral scanner or impression, along with your bite. A shade is selected for ceramic or composite so the restoration blends with the neighbouring teeth.
Step 04Fabrication
For a two-visit approach, a temporary restoration is fitted while a laboratory makes the final piece. Where same-day milling is available, the restoration is designed on screen and milled from a ceramic block during the appointment.
Step 05Bonding and bite check
The fit, contacts and shade are checked before the inlay or onlay is bonded with adhesive cement. Your bite is adjusted and the margins are polished so they are smooth to clean.
Gallery
Our clinic
Dental suite 
Treatment room 
Reception 
Rest area 
Main hall
Inlays and onlays, large fillings or crowns?
A filling is shaped directly in the tooth in one visit and suits small to moderate cavities. An inlay or onlay is made outside the mouth as a single piece and bonded in, giving precise shape and strength where damage is larger. A crown covers the entire visible tooth and usually needs more preparation; it is typically reserved for teeth with extensive damage or after root canal treatment. Your clinician recommends the least invasive option likely to last.
- Dental fillingFor small to moderate cavities, a direct composite filling placed in one visit may be sufficient.
- Dental crownsWhen damage is extensive or the tooth has had root canal treatment, a crown covering the whole tooth may give more protection.
- Zirconium crownFor heavily loaded back teeth where full coverage is needed, a zirconia crown is one strong option.
Before & after treatment
Preparation & aftercare
Before you travel
- Mention any sensitivity, grinding or recent pain in the tooth
- Bring recent X-rays if you have them
- Have active gum inflammation treated first if advised
- If a two-visit approach is planned, allow enough days in Istanbul between appointments
Looking after them
- Follow the instructions your clinician gives you; they take priority over general guidance
- Avoid sticky or very hard foods on a temporary restoration
- Expect some sensitivity for a few days, which usually settles
- Brush twice daily and clean between teeth around the restoration margins
- Ask about a night guard if you grind or clench
- Attend regular check-ups so margins and the bite can be reviewed
In their words
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Questions
Asked about inlays & onlays.
General answers — your own plan always depends on an individual assessment.
All dental questionsWhat is the difference between an inlay and an onlay?
An inlay fits within the cusps of a back tooth, much like a filling. An onlay extends over one or more cusps to protect them, so it is used when the biting surface is more weakened.
Is an onlay better than a crown?
Neither is better in every case. An onlay usually conserves more healthy tooth, while a crown provides full coverage when damage is extensive. Your clinician will recommend the option that suits the remaining structure and your bite.
Ceramic or composite — which should I choose?
Ceramic is often chosen for its strength and stain resistance, while composite is gentler on opposing teeth and easier to repair. The choice depends on the tooth, your bite and habits such as grinding.
Can it be done in one day?
Where same-day milling is available, a ceramic inlay or onlay can be designed and fitted at one appointment. Otherwise, two visits are needed with a temporary in between. Options are confirmed after assessment.
Will the tooth feel sensitive afterwards?
Some sensitivity to cold or biting is common for a few days. If it persists or worsens, contact the clinic, as the bite may need adjusting or the nerve may need review.
Can an inlay replace my old metal filling?
Often, yes. Large amalgam fillings are a common reason for considering an inlay or onlay. Your clinician will check the tooth underneath, as cracks or decay can change the recommendation.
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