Implant vs. bridge — a decision framework for 2026

Frame the decision on biology first, cost second

The right first question is not 'which is cheaper' but 'what does each option do to my other teeth over 20 years.' A three-unit fixed bridge preserves nothing on the missing site itself and reduces two intact teeth to abutments. An implant preserves the neighboring teeth but requires surgery and healing.

Both options are legitimate in the right patient. The decision changes when the neighboring teeth have large existing restorations, when systemic factors argue against surgery, or when time-to-restoration is critical.

Where a bridge is often the better choice

• The teeth on either side of the gap already need crowns for other reasons.
• Surgery is contraindicated (medication, medical status).
• Immediate function is required and grafting would delay treatment months.
• Bone volume is inadequate and the patient cannot or will not undergo grafting.

Where an implant is often the better choice

• The neighboring teeth are unrestored or minimally restored.
• The patient is medically stable and a reasonable surgical candidate.
• The gap will otherwise last decades.
• There is adequate bone (or grafting is acceptable).

Total cost over 20 years

Upfront, a bridge is usually less expensive. Over 20 years, both often require some remake — bridges due to abutment tooth failure, crown fracture, or recurrent decay under the abutment; implants due to prosthetic wear, crown replacement, or (less commonly) implant complications. Neither is 'set and forget.' Ask both clinicians for a realistic maintenance schedule.