Mangano C, Mangano F, Shibli JA, Ricci M, Sammons RL, Figliuzzi M.
Morse taper connection implants supporting \”planned\” maxillary and mandibular bar-retained overdentures: a 5-year prospective multicenter study.
Clin Oral Implants Res. 2011 Oct;22(10):1117-24.