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There is not an optimum number of implants for an overdenture

Gerard Byrne, BDSc, MSD .


Systematic Review Conclusion

There is no evidence to support a specific optimum number of implants for an overdenture.

Critical Summary Assessment

Limited clinical data from randomized controlled trials suggest that the outcomes of implant-supported overdentures in the mandible do not depend on a particular number of implants.

Evidence Quality Rating

Limited Evidence

This summary is published in the Journal of the American Dental Association and can be accessed at:

Critical Summary Publication Date:


These summaries are not intended to, and do not, express, imply, or summarize standards of care, but rather provide a concise reference for dentists to aid in understanding and applying evidence from the referenced systematic review in making clinically sound decisions as guided by their clinical judgment and by patient needs. American Dental Association © 2019