P>Background Switching platform restorations seems to reduce the peri-implant bone resorption and to preserve the peri-implant soft tissues. Aim The aim of the present human study was to compare histologically the peri-implant soft tissue in switching and traditional platform implants 4 years after restoration. Materials and Methods Forty-eight months after implant restoration, 37 peri-implant soft tissue samples from 14 patients were harvested from traditionally restored implants (control group) and from three different platforms mismatching 0.25-0.85 mm (test groups). At the harvesting time, all sites were clinically healthy. Samples were processed to evaluate the inflammatory infiltrate area [inflamed connective tissue (ICT)], the microvascular density (MVD) and the collagen content (AA%). Results At the analyses, no significant differences were found between groups in terms of ICT, MVD and AA% (p > 0.05). In all groups, most samples with a well-preserved junctional epithelium showed a small and localized inflammatory infiltrated associated with not-well-oriented collagen fibres and an increased MVD. Conclusions Forty-eight months after restoration, switching and traditional platform implants had similar histological peri-implant soft tissue features, despite different bone level changes detected radiographically and published in a previous parent study. The present study seems to confirm platform switching as a safe prosthetic concept leading to better maintenance of peri-implant bone levels. However, further histological studies are required to longitudinally confirm the present data.

Soft tissues around long-term platform switching implant restorations: a histological human evaluation. Preliminary results / Luigi, Canullo; Gaia, Pellegrini; Cristina, Allievi; Leonardo, Trombelli; Annibali, Susanna; Claudia, Dellavia. - In: JOURNAL OF CLINICAL PERIODONTOLOGY. - ISSN 0303-6979. - STAMPA. - 38:1(2011), pp. 86-94. [10.1111/j.1600-051x.2010.01641.x]

Soft tissues around long-term platform switching implant restorations: a histological human evaluation. Preliminary results.

ANNIBALI, Susanna;
2011

Abstract

P>Background Switching platform restorations seems to reduce the peri-implant bone resorption and to preserve the peri-implant soft tissues. Aim The aim of the present human study was to compare histologically the peri-implant soft tissue in switching and traditional platform implants 4 years after restoration. Materials and Methods Forty-eight months after implant restoration, 37 peri-implant soft tissue samples from 14 patients were harvested from traditionally restored implants (control group) and from three different platforms mismatching 0.25-0.85 mm (test groups). At the harvesting time, all sites were clinically healthy. Samples were processed to evaluate the inflammatory infiltrate area [inflamed connective tissue (ICT)], the microvascular density (MVD) and the collagen content (AA%). Results At the analyses, no significant differences were found between groups in terms of ICT, MVD and AA% (p > 0.05). In all groups, most samples with a well-preserved junctional epithelium showed a small and localized inflammatory infiltrated associated with not-well-oriented collagen fibres and an increased MVD. Conclusions Forty-eight months after restoration, switching and traditional platform implants had similar histological peri-implant soft tissue features, despite different bone level changes detected radiographically and published in a previous parent study. The present study seems to confirm platform switching as a safe prosthetic concept leading to better maintenance of peri-implant bone levels. However, further histological studies are required to longitudinally confirm the present data.
2011
histologic analysis; platform switching; immunohistochemistry; dental implants; peri-implant soft tissues
01 Pubblicazione su rivista::01a Articolo in rivista
Soft tissues around long-term platform switching implant restorations: a histological human evaluation. Preliminary results / Luigi, Canullo; Gaia, Pellegrini; Cristina, Allievi; Leonardo, Trombelli; Annibali, Susanna; Claudia, Dellavia. - In: JOURNAL OF CLINICAL PERIODONTOLOGY. - ISSN 0303-6979. - STAMPA. - 38:1(2011), pp. 86-94. [10.1111/j.1600-051x.2010.01641.x]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/67338
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? 17
  • Scopus 59
  • ???jsp.display-item.citation.isi??? 48
social impact