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Is the Fixed Mandibular 3-Implant Retained Prosthesis Safe and Predicable for Full-Arch Mandibular Prostheses? A
Thais Bianca Brandão1, Aljomar José Vechiato-Filho1, Eurípedes Vedovato2
1Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), Sao Paulo, Sao Paulo, Brazil.
Summary
Fixed mandibular 3-implant prostheses show comparable survival rates to those with more implants. This systematic review suggests predictability for full-arch rehabilitations in edentulous mandibles.
Area of Science:
- Dental Implantology
- Prosthodontics
- Systematic Review
Background:
- Edentulous mandibles present challenges for full-arch rehabilitation.
- Traditional full-arch restorations often require four or more implants.
Purpose of the Study:
- To evaluate implant and prosthetic survival rates of full-arch rehabilitations retained by three implants in patients with edentulous mandibles.
- To determine the safety and predictability of fixed mandibular 3-implant retained prostheses.
Main Methods:
- Systematic review following PRISMA guidelines.
- Searched Medline/PubMed and Cochrane Library for clinical trials (1999-2020).
- Included English-language studies reporting implant and prosthetic survival.
Main Results:
- 13 studies with 574 participants were included.
- Implant survival rate was 95.43% (73/1596 failures).
- Mean prosthesis survival rate was 89.66% with 1.09 mm marginal bone loss.
Conclusions:
- Fixed mandibular 3-implant retained prostheses demonstrate survival rates comparable to those with four or more implants.
- These restorations appear safe and predictable for full-arch mandibular rehabilitation.
- Further research is warranted to explore this treatment modality.
