4 Types of Dental Bridges: A Comprehensive Guide to Restoring Smiles

If you are missing one or more teeth, you are not alone. The American Dental Association reports that the average adult has three or more decayed or missing teeth. A dental bridge is a popular, effective fixed prosthetic used to replace missing teeth, restore your smile, and improve chewing function by anchoring an artificial tooth (pontic) to adjacent structures.

The 4 Main Types of Dental Bridges

The ideal choice depends on the location of the gap, the health of your surrounding teeth, and your specific restorative needs.

1. Traditional Dental Bridges

Traditional bridges are the most common choice. They consist of one or more pontics held in place by two abutment teeth. These abutment teeth are natural teeth fitted with dental crowns to provide support. Note that this process requires the irreversible removal of enamel from the adjacent teeth to accommodate the crowns, which will then require permanent protection. Clinical Note: Because these crowns are permanently cemented, they require meticulous flossing techniques to prevent secondary decay at the crown margin.

2. Cantilever Bridges

When natural teeth are present on only one side of a gap, a cantilever bridge is used. Like traditional bridges, the dentist must prepare the adjacent tooth by removing enamel. Because these are supported on only one side, they are typically used in areas with less biting force to reduce the risk of complications like loosened crowns or fractures. Risk Indicator: These are generally contraindicated for posterior regions (molars) where heavy occlusal forces can cause the bridge to act as a lever, potentially damaging the supporting tooth.

3. Maryland Bridges

Often recommended for the front of the mouth, Maryland bridges are a conservative alternative. They use metal or porcelain bands to bond the pontic to the back of adjacent natural teeth. Unlike traditional options, this method does not require the removal of enamel, though it is generally less durable and may not withstand the high biting forces found in the molars.

4. Implant-Supported Bridges

These implant-supported bridges are anchored by dental implants rather than natural teeth. Typically, one implant is placed for every missing tooth to create a stable series. If placing an implant for every lost tooth is not possible, a pontic may be suspended between two implant-supported crowns. This process is more involved and requires multiple surgeries over several months.

Caring for Your Dental Bridge

Longevity depends on your commitment to oral hygiene. While most bridges last five to seven years, they can last ten years or longer with proper care. Clean effectively around the dental bridge and consider avoiding foods that pose a risk to the restoration, such as popcorn, caramel, and nuts.

Frequently Asked Questions

How long do dental bridges typically last?

With diligent oral hygiene, how long does a dental bridge last depends on your care, though they can last ten years or more with excellent care and regular dental visits.

Do I have to remove enamel for all bridges?

No. Traditional and cantilever bridges require enamel removal for crowns, but Maryland bridges are a more conservative option that avoids this step.

Why are implant-supported bridges a longer process?

Because they require surgical placement of implants followed by the placement of the bridge, the process often takes several months to complete.

How do I choose the right bridge?

Consult your dentist to evaluate your oral health, the condition of your remaining teeth, and your specific needs to determine the best restorative path forward.