Mandibular single-implant overdenture as an alternative for full-arch rehabilitations: a literature review

  • Mariana Barbosa Câmara-Souza
  • Olívia Maria Costa de Figueredo
  • Camilla Fraga do Amaral
  • Talita Malini Carletti
  • Renata Cunha Matheus Rodrigues Garcia


Oral rehabilitation with mandibular single-implant overdentures (SIO) has been characterized as a solution to improve retention and stability of conventional complete dentures (CD). Among the benefits of this therapy, it can be mentioned minimally invasive surgery, simple prosthetic technique, better retention, and significantly reduced costs. However, the application of this protocol in daily clinic is still not widespread. Aim: Thus, this study aimed to perform a literature review to address the clinical characteristics of this rehabilitation, when compared to two-implant mandibular overdentures and CD. Methods: For this, searches were conducted in the PubMed, Scopus and Scielo databases, considering articles published in English language, without date limitation. Results: It was found 243 manuscripts, of which 20 were compatible with the aim of this study after title/ abstract reading. The selected papers focused on masticatory muscles function, satisfaction levels and self-reported quality of life, as well as surgical and prosthetic outcomes, such as need of maintenance and repair, costs, and implant failure rates. All evaluated manuscripts showed similar masticatory function and patients’ satisfaction with SIO and two-implant overdenture, while results for SIO were greater when compared to rehabilitations with CD. In addition, SIO costs were half of the TIO, and SIO have proven to do not damage the implant, being implant loss close to zero. However, the prosthesis fracture adjacent to the implant was a recurrent clinical outcome, which requires further studies to solve this impairment. Conclusion: Thus, it can be concluded that SIO represents an alternative treatment for frail elders or low-income patients, by increasing masticatory function and improving quality of life.


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How to Cite
CÂMARA-SOUZA, Mariana Barbosa et al. Mandibular single-implant overdenture as an alternative for full-arch rehabilitations: a literature review. Brazilian Journal of Oral Sciences, [S.l.], v. 18, p. e191469, may 2019. ISSN 1677-3225. Available at: <>. Date accessed: 21 july 2019. doi:
Original Research