Fixed full arch vs removable denture
Implant-supported fixed treatment and removable dentures solve different problems at very different costs. A fixed full-arch bridge is anchored to implants and generally requires surgery. A conventional denture is removable and does not require the same implant surgery.
Do not compare them only on initial price. Discuss chewing function, hygiene, maintenance, repair, anatomy, medical history, expected longevity and what you personally value with a qualified dentist.
Make both estimates answer the same questions.
Scope
Same number of arches? Same extractions? Same imaging? Same anesthesia?
Hardware & bridge
Same number of implants? Same final material? Same provisional/final sequence?
Aftercare
Who adjusts, repairs or treats complications? For how long? At what cost?
A big treatment plan deserves questions.
Ask the second clinician to explain where they agree and disagree with the first plan. The goal is not automatically to pick the lower price. It is to understand the clinical rationale and total scope.