Immediate provisionalization in the esthetic zone: 1-year interim results from a prospective single-cohort multicenter study evaluating 3.0-mm-diameter tapered implants

objectives the aim of this interim analysis of a 5-year prospective multicenter study is to evaluate clinical and radiological performance of immediately provisionalized 3.0-mm-diameter tapered implants. materials and methods patients needing implant rehabilitation of maxillary lateral incisors or mandibular lateral and central incisors were treated with 3.0-mm-diameter implants placed in extraction or healed sites and immediately provisionalized. clinical and radiographic examinations were performed at implant insertion, 6 months thereafter, and are ongoing. marginal bone levels and changes, complications, the papilla, plaque, and bleeding indices, and the pink esthetic score (PES) were evaluated at each follow-up visit. results of 112 enrolled patients, 77 patients (91 implants) met the inclusion criteria. seventy-one patients with 82 implants completed the 1-year follow-up. three implants failed yielding a CSR of 96.7%. all failures occurred within the first 3 months after implant insertion. marginal bone level changes from insertion to 6 months was − 0.57 ± 1.30 mm (n = 75) and from insertion to 12 months − 0.25 ± 1.38 mm (n = 72). fifteen non-serious complications were recorded. papilla index score and PES improved at the 1-year followup. plaque formation and bleeding-on-probing showed no statistically significant differences between the 6-month and the 1-year visit. conclusions this 1-year analysis demonstrated high survival, stable bone levels, and healthy soft tissue with 3.0-mm-diameter implants.