Learn About Dental Bridges and How They Work

What a Dental Bridge Actually Is and Why People Get Them

A dental bridge is a false tooth (or teeth) that literally bridges the gap left behind when one or more natural teeth are missing. The bridge gets its name from exactly what it does — it spans across the empty space where a tooth used to be. The false tooth, called a pontic, is anchored to the teeth on either side of the gap, which serve as support posts.

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Think of it like a literal bridge over a river. The river is the gap in your mouth. The banks on either side are your remaining teeth. The bridge structure connects across, creating a solid path where there used to be an opening. This is different from other tooth replacement options like dental implants, which are surgically placed directly into the jawbone, or dentures, which are removable.

People pursue dental bridges for several reasons. A missing tooth can affect how you chew food, changing the way your bite works and potentially putting strain on your remaining teeth. Missing teeth also create visible gaps that many people want to close for appearance reasons. Beyond looks, a gap-toothed mouth can make certain sounds harder to pronounce — words with "th" or "s" sounds might sound different. Over time, the teeth adjacent to a gap can shift toward the empty space, which throws off your bite alignment.

The statistics tell part of the story: according to data from the American College of Prosthodontists, roughly 178 million Americans are missing at least one tooth. Among people over 50, the number climbs to about one in four. Dental bridges represent one of the most common solutions dentists recommend, partly because they've been used successfully for decades and they work relatively quickly compared to some alternatives.

Practical takeaway: A dental bridge is not the only tooth replacement option available. Before deciding on a bridge, understanding how it works and how it compares to implants and dentures will help you have a more informed conversation with your dentist about what might work best for your situation.

How Dental Bridges Are Constructed and What Materials Are Used

The construction of a dental bridge involves several materials working together. The most common type of bridge has two main components: the crowns (also called abutment crowns) that go over the teeth on either side of the gap, and the pontic (false tooth) that fills the empty space between them. Each piece serves a specific function in making the bridge work.

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Modern dental bridges are typically made from several different materials, often in combination. Porcelain is extremely popular because it can be matched to the color of your natural teeth, making it look realistic. All-ceramic bridges are another option that looks very natural. Some bridges use porcelain fused to metal — the metal provides strength underneath while the porcelain on top looks like a real tooth. Metal bridges (using materials like gold or other alloys) are less common for front teeth since they're visible, but they're very durable and sometimes used for back teeth where appearance matters less but strength matters more.

The process of making a bridge starts with your dentist preparing the two teeth that will support the bridge. This means removing some of the outer structure of these teeth — they need to be shaped so that crowns can fit over them properly. Your dentist then takes impressions of your teeth and sends these impressions to a dental laboratory, where a technician builds your custom bridge. This typically takes one to two weeks.

During this waiting period, you may receive a temporary bridge. This temporary version keeps the gap from being visible and protects the prepared teeth while your permanent bridge is being made. Temporary bridges are usually made from acrylic and aren't as strong or durable as the permanent version — they're just meant as a placeholder.

The permanent bridge arrives at your dentist's office after the lab finishes building it. Your dentist checks the fit and color, makes any adjustments needed, and then bonds it to your prepared teeth using a strong dental cement. The result is a fixed bridge that you cannot remove yourself.

Practical takeaway: Understanding that bridges require preparation of neighboring teeth is important because this process is permanent — once your dentist shapes those teeth for crowns, you'll always need a bridge or similar restoration on them. This is a key difference from some other tooth replacement options and something worth discussing with your dentist before proceeding.

The Different Types of Dental Bridges and How Each One Works

Not every gap in your mouth needs the same type of bridge. Dentists have developed several bridge designs, and which one gets recommended depends on where the gap is, how many teeth are missing, and how strong your remaining teeth are.

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The traditional bridge is the most common type. It has two crowns — one on each side of the gap — with a pontic (false tooth) in the middle. This design works well when you have healthy, strong teeth on both sides of the gap. If you're missing one tooth with solid teeth on either side, a traditional bridge is likely what your dentist will suggest.

The cantilever bridge is different. Instead of having crowns on both sides of the gap, it has a crown on only one side. The pontic hangs off that one crown like a cantilever beam in architecture — it extends beyond the support point. This type is used less often today because it puts all the chewing force on just one supporting tooth, which can cause problems over time. However, it may still be recommended in specific situations, such as when there's only one healthy tooth next to the gap.

The resin-bonded bridge (also called a Maryland bridge) uses a different anchoring system. Instead of crowns, it has metal or ceramic wings that bond to the back of the adjacent teeth using a strong resin cement. The pontic still fills the gap, but the attachment method is less invasive — your dentist doesn't need to remove as much tooth structure from the supporting teeth. This makes resin-bonded bridges a gentler option, though they're not suitable for everyone and may not last as long as traditional bridges in all situations.

The implant-supported bridge is a hybrid approach. Instead of relying on natural teeth as support, one or more dental implants are placed in the jawbone, and the bridge is anchored to these implants. If you're missing multiple consecutive teeth, this might be recommended instead of relying on your natural teeth as anchors. It's more complex and takes longer because the implants must integrate with the bone first, but many dentists view it as a stronger long-term solution.

Practical takeaway: The type of bridge recommended for you depends on your specific situation. Before your dentist suggests a particular type, ask why that specific design is being recommended for your gap and how it compares to other options.

The Dental Bridge Procedure: What Happens Step by Step

Getting a dental bridge is usually a two-appointment process, sometimes three if a temporary bridge is involved. Understanding what happens at each stage removes uncertainty and helps you know what to expect.

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At your first appointment, your dentist starts by examining the gap and the teeth that will support the bridge. X-rays may be taken to check the health of the roots and bone underneath. Your dentist will discuss the bridge design, materials, and what the process involves. If you have any decay in the supporting teeth, that gets treated first.

The actual preparation happens next. Your dentist uses a dental drill to remove a layer of outer tooth structure from the teeth on either side of the gap. This might sound alarming, but it's not typically painful because your dentist numbs the area with local anesthetic first. You'll feel pressure and hear the drill, but not pain. The amount of tooth removed depends on the thickness needed for the crown to fit properly. Once shaped, your dentist takes an impression — either a physical mold using special putty or a digital scan using a camera-like device. Some dentist offices do both for accuracy.

Your dentist also records the color of your natural teeth so the lab can match the pontic and crowns as closely as possible. If you're getting a temporary bridge (not everyone does), your dentist places this now. The temporary bridge holds the space and protects your prepared teeth until the permanent bridge is ready. You'll be given care instructions for the temporary bridge — avoid chewing hard or sticky foods on it.

The impressions and color information go to a dental laboratory where technicians design and build your custom bridge. This usually takes seven to fourteen business days. You'll wear the temporary bridge during this time.

At your second appointment, your dentist removes the temporary bridge (if you had one) and checks how the permanent