Model-free digital workflow and immediate functional loading of implant-supported monolithic glass-ceramic crowns: A case series

•This case series study aimed to evaluate surgical and prosthetic outcomes of immediate functional loading of single implants with screw-retained glass ceramic crowns.•Implants in the posterior region of mandible were immediately loaded and were followed for 6 months, documenting implant survival, marginal bone levels, and stability of occlusal and proximal contacts.•Model-free digital workflow could be successfully employed for immediate functional loading with single-unit implant-supported glass ceramic crowns fabricated. The aim of this study was to evaluate surgical and prosthetic outcomes of immediate functional loading of implants with glass-ceramic screw-retained single crowns. A total of 22 implants were placed. Within 24 h, functional full-contour glass ceramic crowns were delivered to patients. The amount of attached gingiva, Simplified Oral Hygiene Index Score, bleeding on probing, time after extraction, bone type, implant size, soft tissue thickness, primary stability, a general fit of the restoration, occlusal and proximal contacts were recorded. Restorations were followed-up at 1, 3, and 6 months tracking marginal bone loss (MBL), noting changes in occlusal and interproximal contacts, checking other possible complications. One implant failed and was removed after 4 weeks (95.5% survival rate). The rest of the implants and crowns functioned with no complications during the follow-up period of 6 months. Factors such as time after extraction, bone type, implant size, soft tissue thickness, and primary stability recorded in Ncm and implant stability quotient (ISQ) values, were not associated with MBL (p