What is the Difference Between a Dental Crown and a Dental Bridge?
A dental crown is a custom-made cap placed over a damaged or weakened tooth to restore its strength, shape, and appearance, while a dental bridge replaces one or more missing teeth by anchoring an artificial tooth to the healthy teeth or dental implants on either side of the gap. The main difference lies in their function: dental crowns strengthen and restore damaged teeth, while dental bridges replace missing teeth. These treatments help improve chewing ability, maintain proper alignment, and enhance overall smile aesthetics for patients seeking restorative dental care in Mesa, AZ. What is a Dental Crown? A dental crown is a custom-made cap that completely covers a damaged or weakened tooth from the gum line upward. It works like a protective shield, restoring the tooth’s strength, shape, size, and function while preserving the natural tooth structure instead of removing it. Crowns are commonly recommended when a tooth is too compromised to be repaired with a filling alone. Dental crowns serve several important purposes. They protect teeth after root canal treatment, strengthen teeth with large fillings, restore broken or worn-down teeth, and support dental bridges. In addition to restoring function, crowns can also improve the appearance of discolored, misshapen, or cosmetically damaged teeth. Types of Dental Crowns Dental crowns are available in different materials, each offering unique benefits depending on durability, appearance, and tooth location: Porcelain-Fused-to-Metal (PFM): Combines natural aesthetics with strong metal support. Over time, a dark line may appear near the gum if recession occurs. All-Ceramic or All-Porcelain: Provides the most natural tooth-like appearance, making it ideal for front teeth, though slightly less durable than metal-based crowns. Zirconia Crowns: Highly durable, tooth-colored, and biocompatible. Zirconia is one of the most popular modern options due to its strength and aesthetics. Metal Crowns (Gold or Alloy): Extremely durable and resistant to wear but typically used for back teeth because of their metallic appearance. Who Needs a Dental Crown? A dentist may recommend a crown if you have a tooth that is cracked or fractured, a tooth with a cavity too large for a filling, a worn-down tooth from bruxism (teeth grinding), a tooth that has undergone root canal therapy, or a tooth that is misshapen or severely stained. Crowns are also placed on top of dental implants to complete the visible portion of the restoration. How is a Dental Crown Made? Traditional Crown Procedure The traditional dental crown process usually requires two visits. During the first appointment, the dentist numbs the area and reshapes the tooth by removing a small layer of enamel. A digital scan or impression is then taken and sent to a dental laboratory to fabricate the custom crown. A temporary crown is placed to protect the tooth while the permanent restoration is being made. At the second visit, typically one to two weeks later, the temporary crown is removed and replaced with the permanent crown after ensuring proper fit, comfort, and color match. Same-Day Dental Crowns Many modern dental offices now offer same-day crowns using CAD/CAM technology. A digital scan is used to design and mill the crown directly in the office from a ceramic block, allowing placement in a single appointment without the need for a temporary crown. How Long Does a Dental Crown Last? Dental crowns typically last 5 to 15 years, although many can remain functional for 20 years or longer with proper care. Longevity depends on the crown material, its location in the mouth, and daily oral habits. Tips to Extend the Life of Your Crown Brush twice daily using non-abrasive toothpaste Floss carefully around the crown margins Wear a night guard if you grind your teeth Avoid chewing ice or hard candies Visit your dentist regularly for checkups and cleanings What is a Dental Bridge? A dental bridge is a fixed restoration that literally bridges the gap left by one or more missing teeth. It consists of one or more artificial teeth called pontics anchored in place by crowns on the natural teeth or implants on either side of the gap. Unlike dentures, a bridge is not removable; it is cemented permanently into your mouth. Bridges serve a crucial functional role. When a tooth is missing, the neighboring teeth tend to drift into the empty space over time, the opposing teeth may overerupt (grow longer), and chewing efficiency decreases. A dental bridge addresses all of these issues while also restoring your smile’s appearance. Types of Dental Bridges Traditional bridge: The most common type. Crowns are placed on the two teeth adjacent to the gap (called abutment teeth), with the pontic suspended between them. Cantilever bridge: Used when there is only one natural tooth next to the gap. Less common and not recommended for back teeth due to the stress it places on the single abutment. Maryland (resin-bonded) bridge: A conservative option where the pontic is held in place by metal or porcelain wings bonded to the backs of adjacent teeth. No crowning of adjacent teeth is required. Implant-supported bridge: Uses dental implants instead of natural teeth as anchors. The most stable and bone-preserving option, covered in detail below. Who Needs a Dental Bridge? A dental bridge is typically recommended for patients who have lost one or more adjacent teeth due to tooth decay, gum disease, injury, or extraction. It is ideal for individuals who have healthy teeth or implants on either side of the gap. Patients who are not suitable candidates for dental implants because of limited bone support, certain medical conditions, or financial considerations often choose a traditional bridge as an effective long-term restoration. How is a Dental Bridge Made? The process for placing a traditional dental bridge is similar to receiving dental crowns. During the first appointment, the dentist reshapes the supporting teeth to prepare them for crowns. Impressions or digital scans are then taken and sent to a dental laboratory, and a temporary bridge is placed to protect the area. At a follow-up visit, usually two to three weeks later, the custom-made permanent bridge is carefully fitted,