How Does a Dental Bridge Work? Types, Cost & Care

A dental bridge replaces one or more missing teeth by anchoring artificial teeth to your existing teeth or dental implants on either side of the gap. It works like a literal bridge: the neighboring teeth act as supports, and the replacement teeth span the space between them. The entire structure is cemented in place as a single unit, restoring your ability to chew, speak, and smile without a visible gap.

The Basic Parts of a Bridge

Every dental bridge has two types of components. The artificial teeth that fill the gap are called pontics. The structures holding those pontics in place are called abutments, which are typically your natural teeth on either side of the missing tooth. In a traditional bridge replacing one tooth, you’d have one pontic in the middle and two abutment teeth supporting it, making a three-unit bridge. If you’re missing more teeth, the bridge simply adds more pontics and, when needed, more abutments for stability.

The abutment teeth are reshaped and capped with crowns that are fused directly to the pontic. Because these crowns, pontic, and connectors are all fabricated as one continuous piece, the bridge distributes chewing force across the abutment teeth rather than concentrating it on one spot. That shared load is what makes the system strong enough for everyday use.

Four Types and How They Attach

Traditional bridges are the most common. They place a crown on each tooth flanking the gap, with one or more pontics between them. Both abutment teeth need to be filed down so the crowns fit over them, which means removing a layer of healthy enamel permanently.

Cantilever bridges work the same way but anchor to only one adjacent tooth instead of two. This makes them an option when you only have a usable tooth on one side of the gap, but the single-sided support puts more stress on that tooth.

Maryland bridges skip the full crowns entirely. Instead, a metal or porcelain framework is bonded to the back surfaces of the neighboring teeth, like small wings holding the pontic in place. Because they don’t require reshaping the abutment teeth, they preserve more of your natural tooth structure. The tradeoff is that the bonded wings aren’t as strong as full crowns, so Maryland bridges work best for front teeth where biting forces are lighter.

Implant-supported bridges replace the natural abutment teeth with dental implants, which are small threaded posts surgically placed into your jawbone. Over three to six months, the implants fuse with the bone in a process called osseointegration. Once they’re stable, crowns and pontics are attached just like a traditional bridge. Implant-supported bridges are typically used when you’re missing three or more teeth in a row and don’t have healthy natural teeth available as anchors.

What Happens During the Procedure

Getting a traditional bridge usually takes two appointments. At the first visit, your dentist numbs the area, then files the abutment teeth into a tapered shape so crowns can fit over them. Impressions of the reshaped teeth are taken and sent to a dental lab, where technicians fabricate the bridge. You’ll leave that appointment with a temporary bridge made from filling material to protect the exposed teeth while you wait.

At the second appointment, the temporary bridge comes off, the underlying teeth are cleaned, and the permanent bridge is tested for fit and bite alignment. Once everything looks right, it’s cemented onto the abutment teeth with dental adhesive. The entire process from first appointment to final placement typically spans two to three weeks, depending on how long the lab takes.

Implant-supported bridges follow a longer timeline. The implant surgery comes first, followed by several months of healing while the posts fuse with bone. Only after full integration does your dentist take impressions and attach the final bridge.

Why Replacing Missing Teeth Matters

A bridge does more than fill a cosmetic gap. When a tooth is missing, the teeth on either side gradually drift toward the empty space. Teeth in the opposite jaw can also shift downward or upward into the gap. Over time, this movement changes your bite alignment, which can lead to uneven wear, jaw discomfort, and difficulty chewing. A bridge locks the surrounding teeth in position by physically occupying the space and splinting the abutment teeth together.

Materials Used in Bridges

The material your bridge is made from affects how it looks, how long it lasts, and where in your mouth it works best. Porcelain is the most popular choice for visible teeth because it can be color-matched to your natural shade, though it’s somewhat brittle and can chip under heavy biting forces. Ceramic offers a similar natural appearance and works for both front and back teeth, but it’s not quite as strong as other options.

Zirconia is a newer material that’s significantly more durable than porcelain, making it a strong choice for back teeth that handle the bulk of chewing. It’s also resistant to wear, though it costs more. Some bridges use a metal framework with porcelain fused over the top, combining the strength of metal with the appearance of porcelain. Your dentist will typically recommend a material based on the bridge’s location in your mouth and how much force it will need to handle.

How Long a Bridge Lasts

The average lifespan of a dental bridge ranges from five to fifteen years, depending on the material, location, and how well you maintain it. Bridges on front teeth tend to last longer simply because they endure less force. Grinding your teeth at night, chewing ice, or eating very hard foods can shorten a bridge’s life. Good oral hygiene is the single biggest factor in longevity, because decay in the abutment teeth is one of the most common reasons bridges fail.

Cleaning Under a Bridge

The pontic sits on top of your gum, and the space beneath it traps food and bacteria that regular brushing can’t reach. You’ll need tools designed specifically for that gap. A floss threader is the simplest option: you thread regular floss through its loop, slide the stiff end under the bridge, and floss against the gum to clear debris. Super Floss is purpose-built for bridges, with a rigid threader tip, a spongy middle section for scrubbing under the pontic, and a regular floss tail for the abutment teeth.

Interdental brushes are small, bristled picks that slide into the gap between the bridge and gum line. They come in multiple sizes so you can find one that fits snugly. If you find manual tools awkward, a water flosser shoots a pressurized stream of water under the bridge and along the gum line, flushing out particles without threading anything. Whichever method you use, cleaning under the bridge daily prevents gum disease around the abutment teeth and protects the foundation your bridge depends on.

Adjusting to a New Bridge

Most people need about two weeks to fully adjust after a bridge is cemented. During that time, you may notice mild soreness in the gums, some sensitivity to hot and cold foods, or a slight feeling of pressure when biting. Using toothpaste formulated for sensitive teeth can help during the first few days. Sticking to softer foods and avoiding temperature extremes while your mouth adapts will make the transition more comfortable. After that settling period, a well-fitted bridge should feel like a natural part of your bite.

Cost Ranges by Type

Pricing varies based on the type of bridge, the materials chosen, and your location. Traditional and cantilever bridges typically run $2,000 to $5,000 for one pontic with a crown on each abutment tooth. Maryland bridges are less expensive at $1,500 to $2,500, reflecting the simpler bonded framework. Implant-supported bridges carry the highest price tag, ranging from $5,000 to $15,000 for a bridge spanning three or four teeth with two implants. Dental insurance often covers a portion of bridge costs, though coverage varies widely by plan. The higher upfront cost of implant-supported bridges can be offset by their longer expected lifespan and the fact that they don’t require reshaping healthy teeth.