title: Macroscopic and microscopic evaluation of a new implant design supporting immediately loaded full arch rehabilitation.
abstract: The purpose of this study is to evaluate macroscopic and microscopic appearance of a new implant design, with particular emphasis given to the type of prosthesis connection. Two dental implants of the same type (Torque Type(®), WinSix(®), BioSAFin. S.r.l. - Ancona, Italy), with sandblasted and acid etched surfaces (Micro Rough Surface(®)), but differing from each other for the prosthesis connection system, were examined by scanning electron microscope (SEM) analysis at different magnifications: TTI implant, with a hexagonal internal connection, and TTX implant, with a hexagonal external connection. SEM analysis showed that the Torque Type(®) implant is characterized by a truncated cone shape with tapered tips. The implant body showed a double loop thread and double pitch with blunt tips. For both types of connection, the implant neck was 0.7 mm in height with a 3% taper. This implant design may be able to guarantee osteotomic properties at the time of insertion in a surgical site suitably prepared, a facilitated screwing, thanks to the thread pitch and to the broad and deep draining grooves, thereby ensuring a good primary stability. The different connection design appears defined and precise, in order to ensure a good interface between the fixture and the prosthetic components. Therefore, this design appears to be particularly suitable in cases where a good primary stability is necessary and a precise coupling between endosseous and prosthetic components, as it allows an easy insertion of the fixture even in conditions of reduced bone availability, and in cases of immediately loaded full-arch rehabilitations.
authors.affiliation: Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University, Chieti, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Tetè
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Zizzari
authors.forename: Alessandro
authors.initials: A
authors.lastname: De Carlo
authors.forename: Bruna
authors.initials: B
authors.lastname: Sinjari
authors.forename: Enrico
authors.initials: E
authors.lastname: Gherlone
keywords: Scanning Electron Microscope (SEM); dental implant; implant connection