Short Implant and Heavy Smokers as Predictors for Failure of Immediate Implants: a retrospective study

• Alexandre-Marques-Paes da Silva ^[1] ; Ana-Paula-Marques-Paes da Silva ^[2] ; Mayra-Stambovsky Vieira ^[3] ; Antônio Canabarro ^[4] ; Lucio-Souza Gonçalves ^[5] ; Dennis-de Carvalho Ferreira ^[6]
  1. [1] PhD. Estácio de Sá University - UNESA (RJ), Microbiology Department, Rio de Janeiro - RJ, Brazil and Postdoctoral student in the department of Dental Prosthodontics at UERJ - RJ - Brazil
  2. [2] Master in Dentistry at Estácio de Sá University. Faculty of Dentistry, Microbiology Department, Rio de Janeiro - RJ, Brazil
  3. [3] Master in Dentistry. PhD student in Dentistry at Veiga de Almeida University, Rio de Janeiro - RJ, Brasil
  4. [4] PhD. Professor at Veiga de Almeida University, Periodontology Department and School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro - RJ, Brasil
  5. [5] PhD. Professor at Estácio de Sá University, School of Dentistry, Microbiology Department, Rio de Janeiro – RJ, Brazil
  6. [6] PhD. Professor at the School of Dentistry, Estácio de Sá University (UNESA-RJ) and Veiga de Almeida University, Microbiology Department, Rio de Janeiro - RJ, Brazil and School of Nursing – UERJ. Rio de Janeiro - RJ, Brazil

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 15, Nº. 11 (November), 2023, págs. 874-881
• Idioma: inglés
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• Resumen

  • The possibility of installing implants in fresh sockets was first proposed as a viable treatment option in the 1970s. Objective: to assess the relationships of subject-level and implant-level characteristics on the failure of immediate implants installed in sites that contained teeth associated or not with chronic apical periodontitis.

    A retrospective study was undertaken with data from patients who received immediate implants with a minimum follow-up of 12 months after loading. The Generalized Estimating Equation, applying a multiple logistic regression model, was employed to investigate the association between predictor variables/co-variables and failure of the immediate implants.

    Four hundred and twenty-three implants were installed (208 uninfected/215 infected sites) in 186 patients (92 men/96 women) with a mean age of 57.1 years old. The survival rate of implants was 91%. Approximately half (215/50.8%) of the alveoli that received immediate implants had chronic apical periodontitis associated with the extracted teeth, and 191 (88.8%) of these survived until the last follow-up visit. When the infection-free sites were analyzed, this frequency was higher (93,3%), but the presence of chronic apical periodontitis did not show statistical significance in the implant failure (p=0.167). Smokers with a consumption of more than 20 cigarettes/day and short implants had more failures (OR:7.66, p=0.012; OR:14.06, p=0.002; respectively).

    Short implants and consumption of more than 20 cigarettes/day were important predictors for failure of immediate implants, regardless of presence of chronic apical periodontitis.