Does cosmetic porcelain dental work cause bad breath? This is a common concern among many clients considering porcelain crowns. In reality, cosmetic porcelain teeth do not cause bad breath—so where does the odor come from? Let’s find out with Herident Dental Clinic!
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What is aesthetic porcelain dentistry?
Aesthetic dental crowns are prosthetic teeth designed to mimic the color and shape of natural teeth. They are used to restore one or more damaged or missing teeth. Dental crowns serve as a method to rehabilitate teeth with imperfections. The goal of getting dental crowns is to achieve a well-aligned, beautiful smile and proper chewing function.
Cosmetic dentistry generally includes two main types of procedures:
Porcelain Crowns

Porcelain Crowns là phương pháp thẩm mỹ được thực hiện bằng cách mài cùi răng thật theo tỉ lệ được bác sĩ tính toán, sau đó chụp mão sứ lên trên bề mặt cùi đã mài nhằm khôi phục về kích thước, thẩm mỹ cũng như chức năng ăn nhai cho khách hàng.
Porcelain Veneers

Porcelain Veneers are a cosmetic dental solution similar to crowns but with a less invasive procedure. Unlike porcelain crowns, veneers only require minimal enamel removal—just a thin layer on the front surface of the tooth—to make space for the veneer to be bonded.
Veneer sheets are typically very thin, ranging from 0.4 to 0.8 mm, much thinner than porcelain crowns. This allows for maximum preservation of natural teeth. Veneers still offer natural color, durability, and chewing function without negatively affecting the real tooth structure.
Does Aesthetic Dentistry Cause Bad Odors?
Porcelain crowns do not cause bad breath and are not the main culprit of oral odor. Bad breath only occurs if the procedure is performed incorrectly or the crown material is of poor quality.
Causes of Bad Breath After Getting Crowns:
If the crown doesn’t fit properly around the gum line, it can create gaps where food and bacteria accumulate. This can lead to inflammation, infection, and unpleasant odor, making you feel self-conscious when talking.
Low-quality porcelain materials:
Some clinics reduce costs by using subpar materials, including metal-based crowns that can oxidize over time. This not only causes black gum lines or chipped crowns, but also increases the risk of tooth decay and persistent bad breath.

Due to gum disease or tooth decay
Weak or unhealthy gums can result from poor oral hygiene or genetic factors. Normally, before placing porcelain crowns, dentists will check for any existing oral conditions and provide necessary treatment. However, if the procedure is not done correctly, the supporting tooth underneath can be damaged or fractured, requiring the crown to be removed and redone.
Improper oral care and hygiene
Your daily oral hygiene routine plays a crucial role in the durability and effectiveness of porcelain crowns. Improper brushing or flossing can allow bacteria to build up, producing sulfur compounds that lead to bad breath or a metallic smell. After getting crowns, your dentist will usually provide home care instructions—it's important to follow them to maintain long-lasting results.
Crowns damaged by external force
If your porcelain crown is subjected to strong impact, it may crack or become roughened without you realizing it. This can cause food and bacteria to accumulate, resulting in persistent bad breath and potential oral health issues.
In addition, other causes of bad breath after getting porcelain crowns may include stomach and digestive disorders, tooth decay, mouth ulcers, dry mouth, and sinusitis.
Aesthetic Dental Care Instructions
Avoid consuming foods and beverages with strong odors such as onions, garlic, coffee, tobacco, and alcohol.
- Follow proper oral hygiene as instructed by your dentist: brush your teeth twice daily—in the morning and evening. After each meal, rinse thoroughly with antibacterial mouthwash, and use dental floss or water flossers to remove food debris. Avoid wooden toothpicks, as they can cause gaps between teeth.
- Have regular dental check-ups every 3–6 months to detect any arising issues early.
Frequently Asked Questions
Does Aesthetic Dental Crowning Hurt?
Porcelain crowns are one of the restorative dental methods that do not cause pain. The procedure involves shaving and modifying the outer layer of the tooth, which only affects the enamel. When done properly, it does not cause pain. Additionally, the dentist will administer local anesthesia before the procedure, so you should not feel pain or discomfort during the treatment.
How Long Do Aesthetic Crowns Last?
The longevity of porcelain crowns depends on various factors. In general, their durability is not permanent. However, if you maintain proper oral hygiene, they can last a long time. According to reports, porcelain crowns can last up to 20 years.
The duration depends on the type of crown chosen, the patient’s dental condition, the dentist’s skill, and oral care habits. To maximize the lifespan of your crowns, follow all of your dentist's care instructions and attend follow-up appointments as scheduled. If you notice any abnormalities, report them to your dentist promptly to ensure timely treatment and prolong crown durability.
Aesthetic Dental Cleaning Process
Caring for porcelain crowns after the procedure is essential to prolong their lifespan and prevent potential complications. Customers should note the following:
- Avoid consuming excessively chewy or hard foods, as they may reduce the crown’s durability or even cause it to crack or break;
- Maintain the habit of using dental floss and water flossers (at least twice a day);
- Supplement your diet with nutrients that benefit dental health, such as calcium, vitamins, and minerals found in vegetables, eggs, fish, and dairy;
- Avoid grinding your teeth (if you have a grinding habit, wear a night guard while sleeping), clenching your teeth, or biting your nails;
- Attend follow-up appointments as scheduled by your dentist to monitor the condition of your porcelain crowns and promptly detect any abnormalities;
- Undergo tartar cleaning every 6 months, brush your teeth twice a day, and combine it with dental floss and mouthwash for optimal cleaning.
If you notice bad breath after getting aesthetic dental crowns, you should visit a reputable dental clinic for a thorough examination. Persistent bad breath after porcelain restoration may affect your daily communication and activities and could indicate underlying oral health issues.
Aesthetic dental crowning requires a combination of skilled professionals, proper materials, and certified origins. Therefore, patients should always seek treatment at reputable dental clinics.
Herident Dental Clinic, under the guidance of an Advisory Board of experienced Associate Professors and Doctors, along with direct treatment by highly qualified dentists trained at the Faculty of Odonto-Stomatology, Hanoi Medical University, is a trusted address to help you achieve a perfect smile and maintain excellent oral health.
Contact our hotline or visit our clinic directly for a consultation and detailed examination.
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