Clinical study on survival rate of short implants placed in the posterior mandibular region: resonance frequency analysis

dc.contributorCentro Universitário de Araraquara (UNIARA)
dc.contributorUniversity of Bern
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.creatorQueiroz, Thallita P.
dc.creatorAguiar, Samuel C.
dc.creatorMargonar, Rogério
dc.creatorFaloni, Ana P. de Souza
dc.creatorGruber, Reinhard
dc.creatorLuvizuto, Eloá R. [UNESP]
dc.date2015-12-07T15:32:06Z
dc.date2015-12-07T15:32:06Z
dc.date2015
dc.date.accessioned2023-09-12T07:30:16Z
dc.date.available2023-09-12T07:30:16Z
dc.identifierhttp://dx.doi.org/10.1111/clr.12394
dc.identifierClinical Oral Implants Research, v. 26, n. 9, p. 1036-1042, 2015.
dc.identifier1600-0501
dc.identifierhttp://hdl.handle.net/11449/131156
dc.identifier10.1111/clr.12394
dc.identifier24735480
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8780437
dc.descriptionShort implants are increasingly used, but there is doubt about their performance being similar to that of regular implants. The aim of this study was to compare the mechanical stability of short implants vs. regular implants placed in the edentulous posterior mandible. Twenty-three patients received a total of 48 short implants (5 × 5.5 mm and 5 × 7 mm) and 42 regular implants (4 × 10 mm and 4 × 11.5 mm) in the posterior mandible. Patients who received short implants had <10 mm of bone height measured from the bone crest to the outer wall of the mandibular canal. Resonance frequency analysis (RFA) was performed at time intervals T0 (immediately after implant placement), T1 (after 15 days), T2 (after 30 days), T3 (after 60 days), and T4 (after 90 days). The survival rate after 90 days was 87.5% for the short implants and 100% for regular implants (P < 0.05). There was no significant difference between the implants in time intervals T1, T2, T3, and T4. In T0, the RFA values of 5 × 5.5 implants were higher than values of 5 × 7 and 4 × 11.5 implants (P < 0.05). A total of six short implants that were placed in four patients were lost (three of 5 × 5.5 mm and three of 5 × 7 mm). Three lost implants started with high ISQ values, which progressively decreased. The other three lost implants started with a slightly lower ISQ value, which rose and then began to fall. Survival rate of short implants after 90 days was lower than that of regular implants. However, short implants may be considered a reasonable alternative for rehabilitation of severely resorbed mandibles with reduced height, to avoid performing bone reconstruction before implant placement. Patients need to be aware of the reduced survival rate compared with regular implants before implant placement to avoid disappointments.
dc.descriptionConexão Sistemas de Prótese
dc.descriptionDepartamento de Ciências da Saúde, Curso de Pós-Graduação em Implantodontia, Centro Universitário de Araraquara (UNIARA), Araraquara, SP, Brasil
dc.descriptionLaboratory of Oral Cell Biology, School of Dental Medicine, University of Bern, Bern, Switzerland
dc.descriptionDepartamento de Cirurgia e Clínica Integrada, Faculdade de Odontologia de Araçatuba (FOA), Universidade Estadual Paulista, Araçatuba, SP, Brasil
dc.descriptionDepartamento de Cirurgia e Clínica Integrada, Faculdade de Odontologia de Araçatuba (FOA), Universidade Estadual Paulista, Araçatuba, SP, Brasil
dc.format1036-1042
dc.languageeng
dc.publisherWiley-Blackwell
dc.relationClinical Oral Implants Research
dc.relation2,462
dc.rightsAcesso restrito
dc.sourcePubMed
dc.subjectAtrophy
dc.subjectBone resorption
dc.subjectDental implants
dc.subjectMandible
dc.subjectShort implants
dc.titleClinical study on survival rate of short implants placed in the posterior mandibular region: resonance frequency analysis
dc.typeArtigo


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