What are Dental Inlays and Onlays?
Inlays/Onlays and overlays are commonly referred to as partial dental crowns and are often used to restore a weakened tooth, strengthen it, and prevent further damage. The affected tooth will be used as a base, and the inlay, onlay, or overlay, consisting of a ceramic composite or gold, will be placed on it, per the best treatment choice and the patient’s choice. A dental inlay only fills the space between the cusps of a tooth, while an onlay/overlay covers a larger area, including one or more cusps on the chewing surface of the tooth, essentially acting as a more extensive dental restoration than an inlay.
Restorative Inlays
An inlay is used to fill damage or decay within the cusp tips of the tooth (the raised points of a tooth). It is a custom-made filling that fits into the grooves of the tooth and does not extend over the cusps. Inlays are placed within the tooth’s center, where the chewing surface has been damaged or decayed, without covering the outer edges or cusps. They are often used to support the natural tooth structure when a cavity is too large for a regular filling but does not require a full dental crown. Inlays can be made from porcelain or composite resin, or gold, and they are bonded to the tooth.
Restorative Onlays
A dental onlay/overlay is more extensive than an inlay. It covers one or more cusps of the tooth and sometimes extends over the entire biting surface. It is also sometimes referred to as a “partial crown” because it restores a significant portion of the tooth’s structure. Onlays/overlays are placed on the tooth’s surface and cover the cusps, protecting a larger area than an inlay. They are used when the damage or decay extends beyond the center of the tooth and affects one or more of the cusps, but the entire tooth does not need a full crown. Like inlays, onlays/overlays can be made from porcelain, composite resin, or gold.
Why Would I Need an Inlay or Onlay?
A person may need a dental inlay or onlay/overlay to repair a tooth that is damaged or decayed but does not require a full crown. These restorations are used when the tooth has too much damage for a traditional filling but not enough to call for more extensive treatment. Specific reasons why someone may need an inlay or onlay/overlay include tooth decay, a failed dental filling, a weak tooth, a worn down tooth, or cosmetic concerns.
Schedule a Consultation
If you are interested in learning more about dental inlays and onlays / overlays, please contact Dental & TMJ Specialists of Greater DC in Bethesda, MD, today. Our friendly dental office team is dedicated to providing outstanding oral health care for each and every one of our patients.
Dental Inlay and Onlay FAQs
Can inlays or onlays be used for cosmetic reasons?
Cosmetic dentistry may offer inlays and onlays to address cosmetic issues. Cosmetic onlays and inlays are types of dental restorations used not only to repair damage and decay but also to enhance the appearance of a patient’s teeth. These restorations are custom-made to blend seamlessly with the natural teeth, providing a solution that improves both the function and aesthetics of the tooth.
What is the difference between inlays, onlays, and crowns?
Understanding the difference between inlays, onlays, and crowns is crucial for making informed decisions about your restorative dental options. Inlays, onlays, and crowns work to restore damaged teeth, but they each have specific applications and benefits. Inlays are used to repair the chewing surfaces of teeth, particularly when damage does not affect the tooths cusps. They are custom-made to fit into the grooves of the teeth, providing a stable and aesthetically pleasing solution that is more durable than a simple filling. Onlays cover one or more cusps of the tooth in addition to the chewing surface. This provides greater protection for teeth that are more significantly damaged while still preserving more of the natural tooth structure. Crowns, on the other hand, are used when a tooth has suffered extensive decay or damage. They cover the entire visible portion of the tooth above the gum line, effectively becoming the new outer surface of the tooth. Crowns are ideal when structural integrity is severely compromised and are crafted from materials such as porcelain, metal, or a combination to offer both strength and a natural appearance.
How are inlays and onlays different from traditional fillings?
Inlays and onlays are restorative dental options often recommended when traditional fillings would not suffice. The main difference between them and traditional fillings lies in their composition and coverage. Traditional fillings, typically made from composite resin or amalgam, are applied directly into the cavity and molded within the tooth. In contrast, inlays and onlays are custom-made in a dental lab to fit the affected area of the tooth precisely. An inlay fits inside the cusps of the tooth, while an onlay extends over and covers one or more cusps, providing additional coverage and strength. Often made from porcelain, ceramic, or composite resin, inlays and onlays are designed to be more durable and long-lasting than traditional fillings, making them a preferred choice for many with larger cavities or substantial damage.
What materials are used for inlays and onlays?
The most common materials used for inlays and onlays include ceramic, porcelain, gold, and composite resin. Ceramic and porcelain are popular choices due to their ability to mimic the natural color and translucency of teeth, providing an aesthetically pleasing result. Composite can also be color-matched to your tooth, though it may not be as durable as porcelain or gold.
How long do dental inlays and onlays last?
Dental inlays and onlays are a popular and durable choice for restoring damaged teeth. Typically, with proper care, dental inlays and onlays can last anywhere from 5 to 30 years. Their longevity is influenced by several factors, including the material used, your oral hygiene habits, and the extent of the tooths exposure to wear and tear. Regular dental check-ups, maintaining good oral hygiene practices, and avoiding hard foods can help maximize the lifespan of your inlays and onlays.
What is the procedure for getting an inlay or onlay?
The procedure for getting a dental inlay or onlay involves multiple steps to ensure the restoration is both effective and aesthetically pleasing. Typically, the process begins with an initial consultation with our team, who will examine the affected tooth/teeth and determine the need for an inlay or onlay based on the extent of damage or decay. Once the treatment is deemed necessary, your dentist will prepare the tooth by removing any decay and shaping the area to accommodate the inlay or onlay. An impression of the tooth is then taken, which is used to create a custom inlay or onlay in a dental laboratory. During your next appointment, our team will fit the inlay or onlay, checking for proper fit, color match, and bite alignment. Adjustments are made as needed before the inlay or onlay is permanently bonded to the tooth using a strong dental adhesive. The bonding process ensures durability and restores the tooths structural integrity and function. The final step involves polishing the restoration to ensure it looks and feels like a natural part of your smile.
How do I care for my inlay or onlay?
Caring for your dental inlay or onlay is crucial to ensuring its longevity and maintaining your overall oral health. After receiving an inlay or onlay, its essential to maintain your oral hygiene practices. This includes brushing your teeth at least twice a day using a fluoride toothpaste and a soft-bristle toothbrush to prevent plaque buildup. Floss daily to remove food particles and plaque from between your teeth, especially around the edges of your inlay or onlay. Regular dental check-ups and cleanings are also crucial to monitor the condition of your restoration and address any potential issues early on. Youll also want to avoid biting down on hard objects like ice or pens, and refrain from using your teeth as tools to prevent damage to your inlays or onlays.
Are inlays and onlays considered cosmetic dentistry?
Inlays and onlays are typically considered part of restorative dentistry, not cosmetic dentistry. They are often thought of in the context of cosmetic dentistry due to their natural appearance and ability to seamlessly blend with the surrounding teeth, but since these restorations are used to repair teeth that have suffered moderate damage, decay, or wear, they are put in the restoration category instead of the cosmetic one.
Can inlays and onlays fall out?
Although they are designed to be long-lasting, certain factors can lead to an inlay or onlay falling out. Poor bonding, further decay around the restoration, or excessive force from habits like teeth grinding can contribute to an onlay or inlay coming loose. Additionally, changes in the underlying tooth structure due to age or wear can affect the fit of the restoration. Proper oral hygiene, regular dental check-ups, and addressing any habits that place undue stress on dental restorations are key strategies to minimize the risk of inlays and onlays falling out.
What are the main benefits of choosing dental inlays and onlays over traditional fillings?
Dental inlays and onlays offer several advantages over traditional fillings, making them a preferred choice for many patients seeking restorative dentistry solutions. One of the primary benefits is their durability and strength. Made from materials like porcelain or composite resin, inlays and onlays can withstand the biting forces exerted by your teeth better than traditional metal fillings. Additionally, inlays and onlays can match the natural color of your teeth, providing a seamless appearance that enhances your smiles overall look. Their longevity also reduces the need for frequent replacements, making them a cost-effective option over time.
