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An in vitro evaluation of the strength of an internal conical interface compared to a butt joint interface in implant design
Author(s) -
Norton Michael R.
Publication year - 1997
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1034/j.1600-0501.1997.080407.x
Subject(s) - fixture , implant , interface (matter) , butt joint , abutment , materials science , conical surface , cylinder , bridge (graph theory) , prosthesis , joint (building) , bending , biomedical engineering , structural engineering , composite material , mathematics , computer science , geometry , engineering , mechanical engineering , surgery , medicine , capillary number , capillary action , metallurgy , artificial intelligence
Dental implants are subject to large and highly complex loads of varying magnitude, duration and vector. Bridge performance is closely related to load transmission both at the bone to implant interface and between components within the implant‐abutment‐bridge cylinder complex. The design of the interface between components within this complex may have a profound influence on the long term function of the implant supported prosthesis. An in vitro evaluation of implants 3.5 mm in diameter, utilizing an internal conical interface has demonstrated increased resistance to bending moments at the fixture‐abutment interface ( P =0.00010) and at the abutment‐bridge cylinder interface ( P < 0.01) when compared to a standard 3.75 mm implant with a hex mediated, butt joint interface. The relatively small values for co‐efficient of variance measured in both systems would conmthat whilst the size of data is small, it is nonetheless a reliable indication of the relative strength of these implant designs.