All Porcelain/Ceramic Inlay vs. Onlay vs. Crown

November 20, 2013

When you have a tooth that has been compromised, whether from decay or fracture, restoring it is the only way to save it from further trauma. A direct restoration, such as a composite filling, works well for teeth with minimal decay, but for more extensive decay and fractures these direct restorations can compromise the integrity of the tooth. In this case, a larger restoration such as an inlay, onlay or crown is recommended. Today we’re going to share the differences between these major restorations and why we would recommend one over another at our Evanston dental office.



Inlay

An inlay is a piece of porcelain and ceramic that fits into your prepared tooth. Inlays are used when only the grooves of a tooth are affected by decay (not the cusps). Our doctors will remove the decayed portion of your tooth and then take a digital impression and design the inlay to fit perfectly into the removed portion of your tooth, like a puzzle piece. The inlay is milled using our CEREC machine, stained and glazed so that the color matches your existing tooth, and then cemented into your tooth. An inlay can cover one, two, or three surfaces.


Onlay

An onlay is a piece of porcelain and ceramic that fits over most of your prepared tooth. An onlay is used when the affected area of the tooth includes the cusps of the teeth. Our doctors remove the decayed portion of your tooth and take a digital impression. Then they design the onlay to match the rest of your tooth’s anatomy. Once the onlay is designed, it is milled using our CEREC machine. Then the dentists will stain and glaze it so that the color matches your existing tooth. Finally the onlay is cemented onto your tooth. An onlay can cover one, two, or three surfaces.


Crown

crown is a piece of porcelain and ceramic that replaces your entire outer tooth structure. A crown is used when more than 50% of the occlusal surface (or biting surface) of your tooth is affected. Often times, a crown is used to replace an inlay, onlay, or filling that has become decayed again and the restoration would be so big that it would threaten the integrity of your tooth. Once the final digital impression is taken, our dentists design the crown and mill it using our CEREC machine. Once the crown is ready, Dr. Jim or Dr. Bob will stain and glaze the crown so that it matches the surrounding teeth. Finally they will cement the crown to your tooth.


In all three of these cases our CEREC machine mills the restoration out of a single porcelain/ceramic block which means that your restoration will be stronger than one made in a lab where the porcelain is often built by layering. As your natural tooth structure is the strongest material in your body, the best way to keep your teeth for your whole life is through preventative measures. However, once your tooth has been weakened by decay or fracture, our Evanston dentists will work with you to provide you with the best minimally invasive solution. Call our office today to set up a consult with our Evanston dentist office.

June 24, 2025
Pregnancy is a time of excitement, anticipation, and transformation. As your body adapts to nurture new life, your needs evolve—including your dental care. At Stephens Dentistry, we’re passionate about supporting expectant mothers through every stage of this journey. Understanding the connection between oral health and pregnancy is not just important for your smile, but for the wellbeing of both you and your baby.  How Pregnancy Impacts Oral Health Pregnancy brings about a surge in hormones, especially estrogen and progesterone, which can have a profound effect on your gums and teeth. Many women notice changes in their oral health during pregnancy, including increased sensitivity, swelling, or bleeding gums. These shifts aren't just uncomfortable—they can also signal conditions that need attention to safeguard your overall health. Pregnancy Gingivitis: What You Need to Know One of the most common dental issues during pregnancy is pregnancy gingivitis. According to the Centers for Disease Control and Prevention , up to 60–75% of pregnant women develop gingivitis, which is characterized by red, swollen, and bleeding gums. This occurs because hormonal changes heighten the body’s response to the bacteria in dental plaque. If left untreated, gingivitis can progress to periodontitis—a more serious gum infection that can cause tooth loss and has been linked to health risks beyond the mouth. Oral Health and Birth Outcomes The importance of oral health during pregnancy goes beyond comfort and aesthetics. Research has shown a significant link between maternal gum disease and adverse pregnancy outcomes, such as preterm birth and low birth weight. A systematic review published in the Journal of Dental Research found that women with periodontal disease may be more likely to deliver prematurely or have babies with low birth weights. Although more research is ongoing, the potential connection means that taking care of your gums and teeth is an essential part of prenatal health. Why Dental Care Shouldn’t Wait Some expectant mothers worry about dental treatments during pregnancy. The good news is that routine dental care—including cleanings and necessary treatments—are not only safe but recommended during pregnancy. The American College of Obstetricians and Gynecologists confirms that preventive dental work is important and can be performed safely, especially in the second trimester. Delaying care can allow small problems to become bigger ones, and untreated infections can pose a risk to both you and your baby. If you are planning to become pregnant, scheduling a dental checkup beforehand is an excellent way to get ahead of any issues. Practical Tips for Expectant Mothers Maintaining oral health during pregnancy doesn’t have to be complicated. Here are some tips to keep your smile healthy throughout your pregnancy: Brush and Floss Regularly: Aim to brush twice a day with fluoride toothpaste and floss daily. This helps remove plaque and reduce your risk of gingivitis. Eat a Balanced Diet: Focus on nutritious foods rich in calcium, vitamin D, and protein, which support both your oral and overall health. Manage Morning Sickness: If you experience vomiting, rinse your mouth with water or a fluoride mouthwash rather than brushing immediately afterward, as stomach acid can soften tooth enamel. Stay Hydrated: Drinking plenty of water helps wash away food particles and bacteria, and can also help combat dry mouth, which is common in pregnancy. Schedule Regular Dental Visits: Let your dental team know you are pregnant so they can tailor your care. At Stephens Dentistry, we take extra precautions to ensure your comfort and safety during each visit. Learn more about our preventive dental services . Recognizing When to Call Your Dentist While mild gum sensitivity is common, it’s important to reach out to your dentist if you notice persistent bleeding, swelling, or pain. These symptoms could indicate an infection that needs prompt attention. If you develop a dental emergency during pregnancy, don’t hesitate to contact your dentist—timely care is always the best choice for both you and your baby. Supporting Your Health at Stephens Dentistry At Stephens Dentistry, we’re committed to providing compassionate, personalized dental care for every stage of life—including pregnancy. Our team stays up-to-date on the latest guidelines and safety protocols to ensure you receive the best care possible. For more information on how we support our patients during pregnancy, visit our dental care for families page. Pregnancy is a beautiful journey, and your smile should be a part of it. Prioritizing your oral health is a gift to yourself and your growing family. If you have questions or want to schedule your next dental visit, contact our office —we’re here to help you every step of the way.
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