Success and survival rates of mandibular overdentures supported by two or four implants: a systematic review.
Identifieur interne : 001695 ( Main/Exploration ); précédent : 001694; suivant : 001696Success and survival rates of mandibular overdentures supported by two or four implants: a systematic review.
Auteurs : Isabelle De Sousa Dantas [Brésil] ; Mariana Barbosa Câmara De Souza [Brésil] ; Maria Helena De Siqueira Torres Morais [Brésil] ; Adriana Da Fonte Porto Carreiro [Brésil] ; Gustavo Augusto Seabra Barbosa [Brésil]Source :
- Brazilian oral research [ 1807-3107 ] ; 2014.
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English descriptors
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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.
DOI: 10.1590/S1806-83242013000600012
PubMed: 24402059
Affiliations:
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Lower</term><term>Denture, Overlay</term><term>Humans</term><term>Treatment Outcome</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Humains</term><term>Overdenture</term><term>Pose d'implant dentaire endo-osseux</term><term>Prothèse dentaire complète inférieure</term><term>Prothèse dentaire implanto-portée</term><term>Résultat thérapeutique</term><term>Échec de restauration dentaire</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">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.</div></front></TEI><affiliations><list><country><li>Brésil</li></country><region><li>Rio Grande do Norte</li></region></list><tree><country name="Brésil"><region name="Rio Grande do Norte"><name sortKey="Dantas, Isabelle De Sousa" sort="Dantas, Isabelle De Sousa" uniqKey="Dantas I" first="Isabelle De Sousa" last="Dantas">Isabelle De Sousa Dantas</name></region><name sortKey="Barbosa, Gustavo Augusto Seabra" sort="Barbosa, Gustavo Augusto Seabra" uniqKey="Barbosa G" first="Gustavo Augusto Seabra" last="Barbosa">Gustavo Augusto Seabra Barbosa</name><name sortKey="Carreiro, Adriana Da Fonte Porto" sort="Carreiro, Adriana Da Fonte Porto" uniqKey="Carreiro A" first="Adriana Da Fonte Porto" last="Carreiro">Adriana Da Fonte Porto Carreiro</name><name sortKey="Morais, Maria Helena De Siqueira Torres" sort="Morais, Maria Helena De Siqueira Torres" uniqKey="Morais M" first="Maria Helena De Siqueira Torres" last="Morais">Maria Helena De Siqueira Torres Morais</name><name sortKey="Souza, Mariana Barbosa Camara De" sort="Souza, Mariana Barbosa Camara De" uniqKey="Souza M" first="Mariana Barbosa Câmara De" last="Souza">Mariana Barbosa Câmara De Souza</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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