Crown on a tooth
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The dental clinic of proprietary prosthetics “Kiаdent” offers restoration of damaged teeth with crowns in just 2 visits.
During a consultation with an orthopedic dentist, we will develop a treatment plan. We are located in the center of Odesa, on 12 Tyraspolska Street.
What is a Dental Crown?
A crown is a single prosthesis that restores the visible (coronal) part of the tooth. It is custom-made in a dental laboratory.
This structure is used when a tooth is more than 50% destroyed or has a significant aesthetic defect.
It allows for:
- restoring the beauty of the smile;
- restoring the correct bite;
- returning the chewing function to the tooth;
- preventing further destruction.
Cost of a Dental Crown
The cost depends on the material used for prosthetics and the volume of preparatory procedures. For example, with severe tooth damage, additional endodontic treatment, post installation, or inlay placement may be required.
Complete list of crown-related services:
- Dentist consultation
- Long-term temporary crown
- Temporary crown on implant + abutment
- Metal-ceramic crowns
- Metal-ceramic crown with shoulder porcelain
- Zirconia crowns
- E-max crowns (Pressed ceramics and CAD/CAM)
- Implant-supported crown
- Implant prosthetics with zirconia crown
Types of Dental Crowns
Zirconia
Zirconium is a metal with high strength (over 900 MPa). We manufacture prostheses from solid zirconium using the Multi-Layer technique. Layers of material are applied one on top of the other, creating a gradient effect of color and transparency, resembling a natural tooth.
Advantages:
- Withstand heavy loads without chipping or cracking.
- Suitable for restoring all teeth (chewing and front teeth).
- Hypoallergenic.
- Minimal tooth preparation required.
- Natural appearance.
- Service life of 15–20 years.
Disadvantages:
- High cost.
Ceramic
The prosthesis is made entirely of ceramic, without a metal or zirconia framework.
Advantages:
- Natural appearance (recommended for the smile zone restoration).
- Hypoallergenic.
- With proper care, lasts up to 10 years.
- Chips or scratches on ceramic can be restored.
Disadvantages:
- Prone to chipping under heavy chewing pressure.
- High cost.
E-max
This material is known as glass-ceramic. It consists of lithium disilicate crystals, fully matching the transparency and color of natural enamel. Material strength: 400 MPa. E-max ceramics come in pressed (E-max PRESS) or milled (CAD/CAM) types.
Advantages:
- Natural appearance.
- Hypoallergenic.
- Lasts up to 15 years.
Disadvantages:
- Not suitable for bridges longer than three units.
- Not repairable.
- High cost.
Metal-Ceramic
We do not recommend metal-ceramic crowns.
These are prostheses with a metal framework and ceramic facing. The metal framework is 0.3 mm thick, typically made of cobalt-chromium alloy, but precious metals like gold or platinum can also be used. There are two types: regular (with an exposed metal edge) and shoulder porcelain (fully covered with porcelain, including the edge).
Advantages:
- Low cost.
- High strength of the metal framework.
- Can be repaired in case of chipping.
- Lasts up to 15 years.
Disadvantages:
- The metal frame may shine through the ceramic facing.
- If the lower edge is not ceramic-covered, the gum may turn bluish upon contact with metal.
- A metal strip becomes visible if the gum recedes.
- May cause allergic reactions.
Which crown is best for teeth?
Our orthopedic dentists consider two factors: aesthetics and strength. For front teeth, beauty is key, so materials that mimic natural enamel, such as ceramic, E-max ceramic, and zirconia Multi-Layer, are preferred. Metal-ceramic can show a metal layer, making it look less natural.
For molars, strength is critical due to higher loads. Strong materials include E-max ceramic, zirconia dioxide, and metal-ceramic.
Comparison and Service Life of Crowns
Ceramic Crowns
- Material
- Standard ceramic
- Aesthetic
- Looks like natural enamel
- Strength
- Prone to microcracks and chips under high pressure
- Service Life
- 10 to 15 years
E-max Ceramic Crowns
- Material
- E-max ceramic
- Aesthetic
- Looks like natural enamel
- Strength
- Withstands heavy chewing loads
- Service Life
- 15 to 20 years
Zirconia Crowns
- Material
- Zirconium dioxide or layered zirconia
- Aesthetic
- Multi-Layer crowns look natural, solid zirconia appears dull
- Strength
- Withstands heavy chewing loads
- Service Life
- 15 to 18 years
Metal-Ceramic Crowns
- Material
- Metal framework with ceramic facing
- Aesthetic
- Metal may shine through ceramic, making it appear less natural
- Strength
- Metal is strong, but ceramic facing may crack
- Service Life
- 7 to 14 years
Indications for Installing a Crown
A crown is needed when:
- a tooth is more than 50% destroyed;
- a depulped tooth needs strengthening;
- there is abnormal enamel wear;
- aesthetic needs replace veneers;
- progressive tooth damage due to non-caries lesions;
- prosthetics are needed on an implant;
- replacing a worn-out crown.
Contraindications
- Metal allergy (for metal-based products);
- Bite anomalies;
- Insufficient clinical tooth height (inability to place a post or inlay);
- Presence of inflammation in the oral cavity (caries, gingivitis, etc.);
- Psychological disorders;
- Pregnancy or lactation.
Installing a Dental Crown in 2 Steps
First Step: Preparation for Installation
1. Step. Diagnosis
The dentist examines the oral cavity and assesses its condition: the extent of tooth damage, whether bite correction is needed, or if there are any inflammatory issues. A CT scan is prescribed to evaluate canal fillings, the presence of caries, root cysts, or other pathologies.
🕤 Duration: 10–15 minutes.
2. Step. Treatment Planning
Based on diagnostic results, the dentist develops a prosthetics scheme. They explain the procedure steps and offer various cost options.
To minimize complications, additional preparation may be prescribed:
- Treating caries;
- Filling root canals;
- Professional tooth cleaning;
- Addressing inflammation in the oral cavity.
🕤 Duration: from 10 minutes.
3. Step. Impression Creation
The dentist takes an impression using a plaster mold or an intraoral scanner, transferring it directly into a digital program.
This procedure is essential to capture the natural tooth relief before grinding. It ensures accurate fabrication of both temporary and permanent prosthetic structures.
🕤 Duration: 10 minutes.
4. Step. Anesthesia
A local anesthetic is injected into the soft tissue to block nerve endings. The anesthetic takes effect within a minute.
🕤 Duration: 5–10 minutes.
5. Step. Nerve Removal
Depulpation is not always necessary. The dentist often tries to preserve the nerve to maintain dental tissue nutrition, ensuring the tooth under the crown lasts longer as a support.
Depulpation is required when:
Front teeth have thin dentin and enamel;
The tooth has a single root.In such cases, overheating the pulp during grinding poses a high risk of infection. Therefore, the pulp is removed in advance.
🕤 Duration: 30 minutes.
6. Step. Preparation
The specialist grinds down the damaged dental tissues, forming a post-like base for the crown. Tooth size is reduced by 1–2.5 mm around its circumference.
The minimum height of the post is 3 mm. If insufficient tissue remains, a post or inlay is installed to ensure reliable fixation of the prosthetic tooth.
🕤 Duration: 30–60 minutes.
7. Step. Retraction
The gum near the tooth is gently displaced using a cotton thread, retraction ring, or silicone cone. This ensures precise impression-taking.
🕤 Duration: 5 minutes.
8. Step. Tooth Scanning
An intraoral scanner is used to create a 3D model of the teeth, enabling fabrication of a snug-fitting crown.
🕤 Duration: 15 minutes.
9. Step. Temporary Crown Placement
To protect the prepared tooth and restore its function, a temporary crown is placed. This crown is made of quick-hardening plastic and fabricated directly in the office. It is worn for 1–2 weeks while the permanent crown is being manufactured.
🕤 Duration: 15–20 minutes.
Second Step: Crown Installation
1. Step. Anesthesia
Even after depulpation, discomfort may arise, so local anesthesia is administered.
🕤 Duration: 5–10 minutes.
2. Step. Removal of Temporary Crown
Temporary crowns are easily removed, as the adhesive (cement) used is not very strong. The dentist loosens the crown with a Kopp tool and removes any residual cement.
🕤 Duration: 5 minutes.
3. Step. Fitting the Permanent Crown
The permanent crown is temporarily fixed with weak cement. The dentist evaluates its fit, proximity to neighboring teeth, and occlusion. If adjustments are needed, the crown is corrected.
🕤 Duration: 5 minutes.
4. Step. Tooth Preparation
The post is dried, treated with air-abrasive spray, and layered with composite material to increase adhesion to the dental cement.
🕤 Duration: 5 minutes.
5. Step. Final Installation
The crown’s inner surface is prepared, a thin layer of cement is applied, and the crown is placed. The patient bites down for proper fixation. Excess cement is removed.
🕤 Duration: 5 minutes.
6. Step. Final Check
The dentist inspects the crown’s placement, checks contact points with floss, and ensures the patient’s comfort in speaking, opening, and closing their mouth.
🕤 Duration: 5 minutes.
When Is an Inlay or Post Needed?
A post is a rod made of metal, fiberglass, or carbon fiber. It is inserted into root canals to strengthen a severely damaged tooth. Posts can be:
- Passive: Secured with dental cement, it does not exert pressure on the root. Suitable for strengthening a tooth after treatment.
- Active: Features threads that are screwed into the root, used to create an artificial post.
An inlay is a structure used when there is insufficient tooth tissue to form a post. It consists of two parts: the rod (placed in root canals) and the artificial post.
Recommendations After Installing a Dental Crown
- Brush your teeth twice a day. Use non-abrasive or low-abrasive toothpaste and a brush with soft or medium bristles to avoid scratching the crown.
- Use additional cleaning tools. Interdental brushes, floss, and irrigators ensure thorough cleaning. Undergo professional dental cleaning once a year.
- Adjust your diet. Avoid hard foods to prevent cracks or chips on the crown. For metal-ceramic crowns, avoid extreme temperature changes to reduce sensitivity.
- Limit smoking. Cigarette smoke can discolor crowns, making them dull or yellow. It can also dry out materials, leading to cracks.
- Visit your dentist regularly. Schedule check-ups every six months. The dentist will evaluate the condition of your oral cavity and crowns, providing treatment if necessary.
Toothache Under a Crown
Several factors can cause pain under a crown:
- The prosthesis does not fit snugly against the tooth.
- The fixation of the post has been compromised.
- A secondary inflammatory process in the tooth root.
- In rare cases, a foreign object (e.g., a fragment of a dental instrument) may have entered the root canal.
Attention
Do not delay—consult your treating dentist immediately. If you do not visit the clinic in time, inflammation under the crown can develop, potentially leading to complete tooth removal.
Unpleasant Odor
The main causes of this unpleasant condition include:
- Improper fit between the crown and adjacent teeth, creating spaces where food particles can collect, decompose, and cause bad breath.
- Improper sealing of the cement used to secure the crown, allowing saliva to seep under the structure, leading to oxide formation and unpleasant odors.
- An untreated tooth beneath the crown, causing decay and a foul smell.
Questions and Answers
- Do crowns harm teeth?
No, if they are installed correctly and based on appropriate indications. This is why choosing a trustworthy clinic and dentist is crucial.
- Is getting a crown painful?
No. Local anesthesia is used during all potentially painful steps, ensuring comfort throughout the procedure.
- What are the best crowns for molars?
For molars, durability is key due to the heavy chewing load. Materials with a strength of over 900 MPa, such as metal-ceramic or zirconia, are ideal.
However, metal-ceramic crowns may develop chips or cracks due to the fragile ceramic facing. The best choice is zirconium dioxide. - What are the best crowns for front teeth?
For the aesthetic zone, beauty and a natural appearance are critical. Crowns made of ceramic, E-max ceramic, or Multi-Layer zirconia meet these requirements.
- How are crowns replaced?
Crowns are removed in several ways:
- Using a Kopp tool: The dental cement is loosened with a bur, and the crown is removed with forceps.
- Cutting: A special tool makes an incision in the center of the crown, which is then removed. Remaining cement is cleaned off.
- CoroFlex method: The prosthesis is detached using compressed air. This method preserves the crown, allowing for reuse.
- When should a crown be replaced?
Replacement is needed when:
- Pain develops under the prosthesis.
- Caries forms.
- Aesthetic concerns arise.
- An unpleasant odor emanates from under the crown.
- The material deteriorates or is damaged.
- There is an allergic reaction to the crown material.
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Changed: 21 Nov, 2024
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