@inproceedings{bb036035f6c849ebb276a09d72932596,
title = "Next-generation rotary endodontic instruments fabricated from special nickel-titanium alloy",
abstract = "Next-generation rotary endodontic instruments with improved clinical performance are being fabricated from special pseudoelastic NiTi wire (termed M-Wire) that has a nanoscale martensitic structure. In this article we report etched microstructures, Vickers hardness measurements, and SEM observations of as-manufactured and clinically-used GT{\textregistered} Series X{\texttrademark} rotary instruments, with comparisons to rotary instruments fabricated from conventional dental pseudoelastic NiTi alloy. The next-generation NiTi instruments have significantly higher Vickers hardness and much less evidence of clinical wear compared to conventional NiTi instruments. Etched microstructures show a martensitic structure, which is consistent with our previously reported STEM observations. Differential scanning calorimetric analyses have shown that the manufactured instruments have similar phase transformation behavior to starting M-Wire blanks. The properties and clinical performance of the next-generation NiTi rotary instruments arise from their special martensitic structure. More TEM studies are needed to elucidate details of this complex microstructure and effects of clinical use.",
author = "Brantley, {William A.} and Jie Liu and Fengyuan Zheng and Schricker, {Scott R.} and Nusstein, {John M.} and Clark, {William A.T.} and Libor Kovarik and Masahiro Iijima and Alapati, {Satish B.}",
year = "2012",
doi = "10.1002/9781118511466.ch2",
language = "English (US)",
isbn = "9781118273326",
series = "Ceramic Transactions",
publisher = "American Ceramic Society",
pages = "11--18",
booktitle = "Biomaterials Science",
address = "United States",
note = "Next Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2011 Conference and Exhibition, MS and T 2011 ; Conference date: 16-10-2011 Through 20-10-2011",
}