Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures : A randomized clinical trial
Amalia Machado Bielemann, Raissa Micaella Marcello-Machado, Alessandra Julie Schuster, Otacilio Luiz Chagas Junior, Altair Antoninha Del Bel Cury, Fernanda Faot
ARTIGO
Inglês
Biological responses to different loading protocols during the bone healing phase in subjects with long time since edentulism, rehabilitated with narrow diameter implants (NDIs) to retain mandibular overdentures (MOs), are still unavailable. This randomized clinical trial compared the peri-implant...
Ver mais
Biological responses to different loading protocols during the bone healing phase in subjects with long time since edentulism, rehabilitated with narrow diameter implants (NDIs) to retain mandibular overdentures (MOs), are still unavailable. This randomized clinical trial compared the peri-implant health, implant stability, and concentrations of pro- and anti-inflammatory cytokines in the peri-implant crevicular fluid (PICF) in mandibular edentulous patients under conventional (CL) and immediate loading (IML) during healing. Twenty totally edentulous patients received two NDIs (2.9 x 10 mm, Facility NeoPoros) placed in mandible anterior region and were randomly assigned to two loading protocols: CL (n = 10) and IML (n = 10). The following clinical outcomes were evaluated 1, 2, 4, 8, and 12 weeks after surgery: (a) peri-implant tissue health (gingival index-GI, plaque index-PI, calculus-presence CP, probing depth-PD, and bleeding on probing-BOP); (b) implant stability quotient (ISQ); and (c) IL-1 beta, IL-6, IL-10, and TNF-alpha levels in the PICF analyzed by ELISA. The CL group showed significantly higher CP scores at weeks 8 and 12. The IML group showed significantly higher GI from the first week onwards. The IML group presented significantly lower PD at all follow-up times, and higher BOP rates than CL at week 12. The ISQ values of the CL group were higher than those of the IML group, except at week 4. The IML group released significantly more TNF-alpha between weeks 1 and 4 and more IL-1 beta during week 4-12, while releasing less IL-6 until week 8, mainly at week 2 (-47.6%). The release of IL-10 was similar for both groups and increased progressively over time. At week 12, the IML group released 45.74% more IL-10 than the CL group. The survival rates were 95% and 90% for CL and IML, respectively. The IML group presented more favorable PD at all evaluation times; the differences between the other clinical parameters were less systematic. The implant stability and the inflammatory marker concentrations were more stable in the CL group
Ver menos
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
Fechado
Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures : A randomized clinical trial
Amalia Machado Bielemann, Raissa Micaella Marcello-Machado, Alessandra Julie Schuster, Otacilio Luiz Chagas Junior, Altair Antoninha Del Bel Cury, Fernanda Faot
Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures : A randomized clinical trial
Amalia Machado Bielemann, Raissa Micaella Marcello-Machado, Alessandra Julie Schuster, Otacilio Luiz Chagas Junior, Altair Antoninha Del Bel Cury, Fernanda Faot
Fontes
|
Journal of periodontal research Vol. 54, no. 3 (June, 2019), p. 241-250 |