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Success and survival rates of mandibular overdentures supported by two or four implants: a systematic review
Dantas, Isabelle de Sousa; Souza, Mariana Barbosa Camara de; Morais, Maria Helena de Siqueira Torres; Carreiro, Adriana da Fonte Porto; Barbosa, Gustavo Augusto Seabra.
  • Dantas, Isabelle de Sousa; Universidade Federal do Rio Grande do Norte. Department of Dentistry. Natal. BR
  • Souza, Mariana Barbosa Camara de; Universidade Federal do Rio Grande do Norte. Department of Dentistry. Natal. BR
  • Morais, Maria Helena de Siqueira Torres; Universidade Federal do Rio Grande do Norte. Department of Dentistry. Natal. BR
  • Carreiro, Adriana da Fonte Porto; Universidade Federal do Rio Grande do Norte. Department of Dentistry. Natal. BR
  • Barbosa, Gustavo Augusto Seabra; Universidade Federal do Rio Grande do Norte. Department of Dentistry. Natal. BR
Braz. oral res ; 28(1): 74-80, Jan-Feb/2014. tab, graf
Artigo em Inglês | LILACS | ID: lil-697004
ABSTRACT
This systematic review evaluated the influence played by the number of implants on the results of rehabilitation treatment with mandibular overdentures on 2 or 4 implants. The literature search was conducted using PubMed, Embase and Cochrane databases. Specific terms were used in performing a search from January 1980 to January 2013. The search strategy was applied by two reviewers who extracted the data and compared the results. Discrepancies were resolved by discussion. Great heterogeneity was seen among the selected studies, in regard to survival rates, prosthesis failure and function rates. A medium degree of quality and methodological consistency was found in one study, and no studies showed a high degree. When considering the prosthesis success rate for 2 implants, there was a variation of 23% to 100%. However, when considering the survival rate, the result was 92% to 100%. For 4 implants, prosthesis survival rates showed less variation, i.e., 97.7% to 100%. Ball attachments were the most common type of abutment for 2 implants; however, there was a higher prevalence of bar abutments for 4 implants. Rehabilitations with 2 implants showed more complications and required more maintenance according to the connection type. Given the limitations of this review, mandibular overdentures with 4 implants showed better results with respect to survival and success rates, especially those with a bar connection. Further studies comparing these two treatment types are necessary to improve the scientific evidence in this area.
Assuntos


Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Arcada Edêntula / Prótese Dentária Fixada por Implante / Prótese Total Inferior / Revestimento de Dentadura Tipo de estudo: Fatores de risco / Revisões Sistemáticas Avaliadas Limite: Humanos Idioma: Inglês Revista: Braz. oral res Assunto da revista: Odontologia Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade Federal do Rio Grande do Norte/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Arcada Edêntula / Prótese Dentária Fixada por Implante / Prótese Total Inferior / Revestimento de Dentadura Tipo de estudo: Fatores de risco / Revisões Sistemáticas Avaliadas Limite: Humanos Idioma: Inglês Revista: Braz. oral res Assunto da revista: Odontologia Ano de publicação: 2014 Tipo de documento: Artigo País de afiliação: Brasil Instituição/País de afiliação: Universidade Federal do Rio Grande do Norte/BR