Wondering about dental inlays and onlays? These restorative treatments bridge the gap between fillings and crowns, offering a durable solution when tooth damage is too extensive for a standard filling but doesn't require a full crown. At London Dental Specialists, we precisely craft inlays (which fit within the cusps of your tooth) and onlays (which cover one or more cusps) to match your natural tooth structure. Made from strong, tooth-coloured materials, they provide superior longevity compared to traditional fillings while preserving more of your natural tooth. Our patients appreciate how these custom-made restorations strengthen damaged teeth, restore function, and blend seamlessly with their smile. Below are answers to the questions we hear most frequently about these versatile treatments.
What are dental inlays and onlays?
Dental inlays and onlays are conservative restorations used when a tooth has moderate damage but doesn't require a full crown. An inlay fits within the cusps (tips) of your tooth, while an onlay covers one or more cusps. Both are custom-made in a dental laboratory from durable materials like porcelain or composite resin, providing a stronger and longer-lasting solution than traditional fillings while preserving more of your natural tooth structure.
What is the difference between inlays and onlays?
The main difference between inlays and onlays is their coverage area. Inlays fit entirely within the cusps (tips) of your tooth, similar to a filling but more durable. Onlays extend over one or more cusps of the tooth, providing greater coverage for more extensive damage. Both restorations are custom-made in a laboratory to precisely fit your tooth, but onlays are used when damage extends to the chewing surface of the tooth.
How do inlays and onlays differ from crowns?
Inlays and onlays are more conservative treatments than crowns. While inlays and onlays cover only a portion of the tooth (inlays fit within cusps, onlays cover one or more cusps), crowns cover the entire tooth above the gum line. Inlays and onlays preserve more of your natural tooth structure, requiring less removal of healthy tooth material. Crowns are typically reserved for teeth with extensive damage or decay, while inlays and onlays are ideal for moderate damage.
Are inlays and onlays better than traditional fillings?
Yes, inlays and onlays offer several advantages over traditional fillings. They are more durable, lasting 15-30 years with proper care compared to 5-10 years for composite fillings. Inlays and onlays strengthen the tooth structure rather than weakening it, distribute chewing forces more evenly, and resist staining better than composite fillings. They also provide superior protection against further decay and are easier to clean and maintain, making them a more cost-effective long-term solution despite the higher initial cost.
What is the procedure for getting inlays and onlays?
The inlay or onlay procedure at London Dental Specialists typically requires two appointments. During the first visit, the dentist removes decay, takes precise impressions, and places a temporary restoration. These impressions are sent to a dental laboratory where your custom inlay or onlay is crafted. At the second appointment, the temporary restoration is removed, and the permanent inlay or onlay is bonded to your tooth using strong dental adhesives. The dentist then checks your bite and makes any necessary adjustments for comfort.
What materials are used for inlays and onlays?
Inlays and onlays can be made from several materials, each with unique benefits:
- Porcelain: Highly aesthetic, matching natural tooth colour, stain-resistant, and biocompatible
- Composite resin: Tooth-coloured, less expensive than porcelain, and can be repaired if damaged
- Gold: Extremely durable, causes minimal wear to opposing teeth, and has excellent longevity
- Ceramic: Excellent aesthetics with strength comparable to natural tooth enamel
At London Dental Specialists, we'll recommend the most appropriate material based on your specific needs, location of the restoration, and aesthetic preferences.
How long do inlays and onlays last?
With proper oral hygiene and regular dental check-ups, inlays and onlays can last 15-30 years. This longevity significantly exceeds that of traditional fillings, which typically need replacement every 5-10 years. The durability of your restoration depends on several factors, including the material used, your oral hygiene practices, diet, and whether you grind or clench your teeth. Regular visits to London Dental Specialists for professional cleanings and examinations will help maximise the lifespan of your inlays and onlays.
Are inlays and onlays painful to get?
The procedure for placing inlays and onlays is virtually painless. Local anaesthesia is used to numb the area before treatment begins. After the procedure, you might experience mild sensitivity for a few days, particularly to hot or cold temperatures, but this typically resolves quickly. Most patients find inlays and onlays cause less post-procedure discomfort than traditional fillings because they're precisely fitted to your tooth, reducing pressure points and uneven bite forces that can cause pain.
How do I care for my inlays and onlays?
Caring for inlays and onlays is straightforward and similar to caring for your natural teeth:
- Brush twice daily with fluoride toothpaste
- Floss daily, paying special attention to the areas around the restoration
- Avoid chewing extremely hard foods (ice, hard sweets) that could damage the restoration
- Wear a night guard if you grind or clench your teeth
- Attend regular check-ups and cleanings at London Dental Specialists
- Consider limiting staining substances like coffee, tea, and tobacco
With proper care, your inlays and onlays will provide years of functional and aesthetic benefits.
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