[1
]
Department of Medical Biotechnologies, School of Dental Medicine, University of Siena,
Italy.
[2
]
School of Dentistry, University of Leeds, UK.
[3
]
Department of Prosthodontics, S. Raffaele University, Milan, Italy.
[4
]
Department of Restorative Dentistry, University of Messina, Italy.
[5
]
Bioscience Research Center College of Dentistry, College of Dentistry, University
of Tennessee Health Science Center, Memphis, Tennessee, USA.
[6
]
The Forsyth Institute, Cambridge, Massachusetts, USA.
[7
]
Department of Reconstructive Dentistry, University Center for Dental Medicine Basel
UZB, Switzerland.