Immediate post-extraction implants with immediate loading in alveoli with infection due to active periodontitis: a retrospective cohort study
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Anitua, E [1]
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[1] BTI-Biotechnology Institute
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- Localización: Científica dental: Revista científica de formación continuada, ISSN 1697-6398, ISSN-e 1697-641X, Vol. 15, Nº. Extra 4 (Versión en inglés de los trabajos ganadores y los segundos clasificados de los premios de la revista), 2018, págs. 27-33
- Idioma: inglés
- Enlaces
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Resumen
Objective: In this study, a follow-up of immediate implants with immediate loading is carried out in alveoli affected by active periodontitis in order to determine their survival, bone loss and other variables that may lead to treatment failure, both surgical and prosthetic.
Material and Methods: Patients in whom immediate post-extraction implants with immediate loading were placed in areas affected by periodontitis over 9 years (from December 2006 to January 2015). Information was collected retrospectively on demographic data, data related to the implant and data related to the evolution of the implant over the course of of follow-up (stability of soft tissues, hard tissues and prostheses). Marginal bone loss due to the implant and survival of implants and prostheses were calculated. The distance between the implant studied and its adjacent implant or tooth and the repercussions that this distance had on the behavior of the soft periplantar tissue and papilla formation were calculated by implant.
Results: Finally 25 patients and 39 implants were included in the study. The mean follow-up time was 6 years (range 1 to 7 years). Only 3 of the implants included in the study did not meet the criteria for implant success and the survival of the implants and prosthesis was 100%. The mean marginal bone loss was 1.50 mm (range 0.61-5.01 mm). Errors were observed (loosening of screws and porcelain fractures) in 6% of the prostheses. A statistically significant correlation was found between the distance to the adjacent tooth-implant and the stability of the soft tissue after surgery (p=0.038). The average distance between the implant and the adjacent implant or tooth was tooth when the soft tissue remained stable after the treatment was 3.10 mm ± 1.67 and when not stable it was of 2.09 mm ± 1.95. The average tooth-to-implant distance when the papilla was present was 2.96 mm ± 1.95 mm.
Conclusions: Immediate loading of post-extraction implants affected by periodontitis (active at the time of insertion of the implant) is not a risk factor for the survival of the implants according to the data obtained by this study.
