Dental Implants vs Bridges: How to Decide

Dr. Nirupa V

Founder · MDS, Prosthodontics & Implant Dentistry

When a tooth is lost, two of the most common replacement options are a dental implant or a fixed bridge. Both have well-documented success rates, but they work differently and suit different clinical situations.

How a Dental Bridge Works

A traditional fixed bridge uses the teeth on either side of the gap (abutment teeth) to support a false tooth (pontic) in between. The abutment teeth are prepared (reduced in size) to accommodate crowns, and the bridge is cemented as a single connected unit.

How a Dental Implant Works

An implant is a titanium post surgically placed into the jawbone, where it integrates with the bone over 3–6 months. A crown is then attached to the implant via an abutment. The implant functions independently without involving adjacent teeth.

Key Differences

• Tooth preservation: an implant does not require preparation of adjacent healthy teeth. A bridge does.
• Bone preservation: implants stimulate the jawbone and help prevent resorption. Bridges do not.
• Longevity: implants have reported survival rates exceeding 95% at 10 years. Bridges typically last 10–15 years.
• Treatment time: bridges can often be completed in 2–3 weeks. Implants require 3–6 months of healing.
• Cost: implants generally have a higher initial cost but may be more cost-effective over a lifetime.

A systematic review in Clinical Oral Implants Research (Pjetursson et al., 2012) reported a 10-year survival rate of 95.2% for implant-supported single crowns and 89.2% for tooth-supported fixed dental prostheses.

When a Bridge May Be Preferred

• The adjacent teeth already have large fillings or crowns and would benefit from crown coverage regardless.
• The patient has medical conditions that contraindicate implant surgery.
• Insufficient bone volume exists and the patient prefers not to undergo bone grafting.
• A faster treatment timeline is needed.

When an Implant May Be Preferred

• The adjacent teeth are healthy and unrestored.
• Long-term bone preservation is a priority.
• The patient is in good general health and a suitable candidate for minor surgery.
• The missing tooth is in a visible area where aesthetics are critical.

Making the Decision

The choice between an implant and a bridge is best made after a thorough clinical and radiographic evaluation. At Bridges & Canals, both options are discussed in the context of the patient’s overall oral health, adjacent tooth condition, bone status, and personal preferences.