Background: Human studies on implants with the same design but with different surfaces are lacking at the present time. Purpose: The aim of this study was to compare the survival rate of and marginal bone loss (MBL) around 2 types of implants with the same design, but with different surfaces: fully "sandblasted and double-etched" (SDE) implants and hybrid (H) implants, with an apical SDE-surface and a coronal machined-surface. Materials and methods: The SDE- and H-surfaces were previously analyzed under SEM and profilometer. Implants were placed in partially edentulous periodontally healthy patients requiring single implant-restoration, in either mandible or maxilla, with cement-retained prosthetic restoration. Twelve months after prosthetic loading, MBL in relation to prosthetic abutment height (AH), calculated radiographically, was statistically analyzed. Results: SEM and profilometer analyses revealed no differences between the SDE-surfaces of either SDE- or H-implants. Transverse ridges and grooves characterized the machined portion of H-implants, clearly influencing the profilometer analysis. In 75 patients, 37 SDE and 38 H-implants were placed and all functioned completely after 12 months. In both SDE- and H-groups, MBL had a significant inverse relationship with AH, with greater intercept and negative slope for SDE-group and intersection of the 2 regression lines at AH=2 mm. Conclusions: A 100% survival rate was recorded for SDE- and H-implants placed in pristine bone of periodontally healthy patients; MBL was limited and similar in both SDE- and H-groups; the higher the prosthetic AH, the lesser the MBL around implants; H-implants could reduce bone loss most effectively with abutments lower than 2 mm, realistically exploitable on thin biotypes; SDE-implants could reduce bone loss most effectively with abutments greater than 2 mm, realistically exploitable on thick biotypes.

Hybrid and fully-etched surface implants in periodontally healthy patients: A comparative retrospective study on marginal bone loss / Spinato, Sergio; Bernardello, Fabio; Sassatelli, Paolo; Zaffe, Davide. - In: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH. - ISSN 1523-0899. - 19:4(2017), pp. 663-670. [10.1111/cid.12504]

Hybrid and fully-etched surface implants in periodontally healthy patients: A comparative retrospective study on marginal bone loss

ZAFFE, Davide
2017

Abstract

Background: Human studies on implants with the same design but with different surfaces are lacking at the present time. Purpose: The aim of this study was to compare the survival rate of and marginal bone loss (MBL) around 2 types of implants with the same design, but with different surfaces: fully "sandblasted and double-etched" (SDE) implants and hybrid (H) implants, with an apical SDE-surface and a coronal machined-surface. Materials and methods: The SDE- and H-surfaces were previously analyzed under SEM and profilometer. Implants were placed in partially edentulous periodontally healthy patients requiring single implant-restoration, in either mandible or maxilla, with cement-retained prosthetic restoration. Twelve months after prosthetic loading, MBL in relation to prosthetic abutment height (AH), calculated radiographically, was statistically analyzed. Results: SEM and profilometer analyses revealed no differences between the SDE-surfaces of either SDE- or H-implants. Transverse ridges and grooves characterized the machined portion of H-implants, clearly influencing the profilometer analysis. In 75 patients, 37 SDE and 38 H-implants were placed and all functioned completely after 12 months. In both SDE- and H-groups, MBL had a significant inverse relationship with AH, with greater intercept and negative slope for SDE-group and intersection of the 2 regression lines at AH=2 mm. Conclusions: A 100% survival rate was recorded for SDE- and H-implants placed in pristine bone of periodontally healthy patients; MBL was limited and similar in both SDE- and H-groups; the higher the prosthetic AH, the lesser the MBL around implants; H-implants could reduce bone loss most effectively with abutments lower than 2 mm, realistically exploitable on thin biotypes; SDE-implants could reduce bone loss most effectively with abutments greater than 2 mm, realistically exploitable on thick biotypes.
2017
29-mag-2017
19
4
663
670
Hybrid and fully-etched surface implants in periodontally healthy patients: A comparative retrospective study on marginal bone loss / Spinato, Sergio; Bernardello, Fabio; Sassatelli, Paolo; Zaffe, Davide. - In: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH. - ISSN 1523-0899. - 19:4(2017), pp. 663-670. [10.1111/cid.12504]
Spinato, Sergio; Bernardello, Fabio; Sassatelli, Paolo; Zaffe, Davide
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1137387
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