title: Leakage evaluation of original and compatible implant-abutment connections: In vitro study using Rhodamine B.
abstract: Leakage has been addressed as a major contributing factor to inflammatory reactions at the implant-abutment connection, leading to problems such as oral malodor, inflammation, and marginal bone loss. The aim of this study was to investigate in vitro the leakage at implant-abutment interface of OsseoSpeed™ implants connected to original and compatible abutments. A total of 28 OsseoSpeed implants were divided into four groups (n = 7). Each group was connected to four different abutments according to manufacturers' recommendations: group A (TiDesign™); group B (Natea™); group C (Dual™); and group D (Implanet™) abutments. The inner volume of each implant-abutment combination was calculated and leakage was detected for each group with spectrophotometric analysis at 1 h (D0) and 48 h (D1) of incubation time using Rhodamine B. At 1 h, leakage volume was significantly lower in TiDesign and Dual than in Natea and Implanet (P < 0.001). At 48 h, however, leakage was significantly lower between TiDesign and all other systems (P < 0.005). Compatible abutments do not fit internal connection of OsseoSpeed implants perfectly, which increases the leakage of the final assembly.
authors.affiliation: School of Dentistry, Lebanese University, Beirut, Lebanon.
authors.forename: Antoine
authors.initials: A
authors.lastname: Berberi
authors.affiliation: School of Dentistry, Lebanese University, Beirut, Lebanon.
authors.forename: George
authors.initials: G
authors.lastname: Tehini
authors.affiliation: School of Dentistry, Lebanese University, Beirut, Lebanon.
authors.forename: Khaldoun
authors.initials: K
authors.lastname: Rifai
authors.affiliation: Ecole Doctorale, PRASE, Lebanese University, Beirut, Lebanon.
authors.forename: Farah
authors.initials: F
authors.lastname: Bou Nasser Eddine
authors.affiliation: Ecole Doctorale, PRASE, Lebanese University, Beirut, Lebanon.
authors.forename: Bassam
authors.initials: B
authors.lastname: Badran
authors.affiliation: Ecole Doctorale, PRASE, Lebanese University, Beirut, Lebanon.
authors.forename: Haidar
authors.initials: H
authors.lastname: Akl
keywords: Dental implants; Rhodamine B; abutment connection; compatible abutment; implant–abutment interface; leakage