Abstract
ObjectivesThis open, single-cohort, multicenter, prospective study investigated the efficacy of immediately provisionalized tapered conical connection implant for single-tooth restorations in the anterior and premolar regions of the maxilla after 5 years of function.Materials and methodsAll implants were placed in healed sites and immediately provisionalized. MBLs, soft-tissue parameters, and oral-health impact profile (OHIP) were evaluated at implant insertion, 6, 12, 24, 36, and 60 months. Paired Wilcoxon signed-rank tests and Kaplan–Meier survival analysis was used for statistical and implant survival/success analyses, respectively.ResultsSeventy-seven patients (81 implants) completed the 5-year follow-up. The 5-year cumulative survival and success rates were 97.8%, and the mean MBL change from implant insertion to 5 years was − 0.80 ± 1.13 mm. Optimal papilla index scores were observed at 90.1% of sites at 5 years compared with 32.8% of sites at insertion. Pink esthetic score, modified bleeding and plaque indices, and OHIP showed statistically significant improvement at the 5-year follow-up.ConclusionsImmediately provisionalized tapered conical connection implants promote marginal bone stability and excellent esthetic outcomes after 5 years of function.Clinical relevanceThis treatment is a viable option for patients requiring immediately provisionalized single-tooth restorations in the esthetic zone and shows favorable long-term clinical outcomes, including marginal bone stability and excellent esthetics.
Highlights
The goal of modern implant dentistry is to achieve implant survival and to ensure an esthetic and functional restoration that is compatible with the existing dentition
No serious adverse events (AEs) were reported at any point during the study; a total of 9 non-serious AEs were reported, including 4 that were device-related (2 were associated with implant mobility, 1 with pain, and 1 with peri-implantitis) and 5 that were not device-related. This prospective multicenter study evaluated the 5-year functional and esthetic outcomes of immediately provisionalized, tapered conical connection implants with built-in platform shifting for single-tooth implant-supported restorations in the anterior and premolar regions of the maxilla
The primary objective of this study was to evaluate the change in peri-implant MBLs and compare it to the MBL in reference group from two other studies using an implant with identical geometry but an older, tri-channel implant-abutment connection: statistical analysis revealed that the MBL changes observed in this study were non-inferior to the changes in the reference group, despite the fact that the MBL changes in the reference group were collected after only 1 year in function
Summary
The goal of modern implant dentistry is to achieve implant survival and to ensure an esthetic and functional restoration that is compatible with the existing dentition. This is relevant for the anterior maxilla, where the teeth and surrounding structures are clearly visible and, have a direct impact on the patient’s quality of life. Current literature suggests that restoring single missing teeth in the esthetic zone by placing implants into fresh extraction sockets may be advantageous compared with placing implants into healed sites because this approach often reflects patient wishes, and it prevents ridge resorption following tooth loss [5]. The loss of bone volume due to ridge resorption requires careful planning to allow for optimal implant position, and the surgical technique must anticipate the planned soft tissue margin to recreate natural-looking esthetics
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