Prospective controlled study comparing 5.5-mm long implants with longer implants to support fixed partial prosthesis in the premolar-molar regions: 12 months follow-up

This prospective controlled clinical study supports the use of 5.5-mm long implants in the context of fixed partial prosthesis and posterior regions. No statistically significant differences have been observed in marginal bone stability, implant survival and prosthetic complications compared to longer implants. Within the limits of this study, 5.5 mm implants appear to be a predictable option for fixed posterior partial dentures.